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Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
EM_WSIZE = 4
EM_PSIZE = 4
EM_BSIZE = 8 /* two words saved in call frame */
INT8 = 1 /* Size of values */
INT16 = 2
INT32 = 4
INT64 = 8
FP_OFFSET = 0 /* Offset of saved FP relative to our FP */
PC_OFFSET = 4 /* Offset of saved PC relative to our FP */
#define COMMENT(n) /* noop */
#define nicesize(x) ((x)==INT8 || (x)==INT16 || (x)==INT32 || (x)==INT64)
#define smalls(n) sfit(n, 16)
#define smallu(n) ufit(n, 16)
In powerpc table, fix macros los() and his(). Change the operator in his() from a - minus to a + plus. When los(n) becomes negative, then his(n) needs to add 0x10000, not subtract it. Also change los(n) to do the sign extension, because smalls(los(n)) should be true, not false. Also change hi(n) and lo(n) to wrap n in parentheses, as (n), because these are macros and n might still contain operators.
2016-10-15 03:59:26 +00:00
#define lo(n) ((n) & 0xFFFF)
#define hi(n) (((n)>>16) & 0xFFFF)
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Use these for instructions that treat the low half as signed --- his()
* includes a modifier to produce the correct value when the low half gets
* sign extended. Er, do make sure you load the low half second. */
In powerpc table, fix macros los() and his(). Change the operator in his() from a - minus to a + plus. When los(n) becomes negative, then his(n) needs to add 0x10000, not subtract it. Also change los(n) to do the sign extension, because smalls(los(n)) should be true, not false. Also change hi(n) and lo(n) to wrap n in parentheses, as (n), because these are macros and n might still contain operators.
2016-10-15 03:59:26 +00:00
#define los(n) (lo(n) | (((0-(lo(n)>>15)) & ~0xFFFF)))
#define his(n) ((hi(n) + (lo(n)>>15)) & 0xFFFF)
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
#define IFFALSE {CONST, 4}
#define IFTRUE {CONST, 12}
#define ALWAYS {CONST, 20}
#define DCTRZ {CONST, 34}
#define LT {CONST, 0}
#define GT {CONST, 1}
#define EQ {CONST, 2}
PROPERTIES
GPR /* any GPR */
REG /* any allocatable GPR */
FPR /* any FPR */
FREG /* any allocatable FPR */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
FSREG /* any allocatable single-precision FPR */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
SPR /* any SPR */
CR /* any CR */
GPR0 GPRSP GPRFP GPR3 GPR4 GPR5 GPR6 GPR7
GPR8 GPR9 GPR10 GPR11 GPR12 GPR13 GPR14 GPR15
GPR16 GPR17 GPR18 GPR19 GPR20 GPR21 GPR22 GPR23
GPR24 GPR25 GPR26 GPR27 GPR28 GPR29 GPR30 GPR31
CR0 CR1
Check in incomplete Linux PowerPC and M68K work. --HG-- branch : dtrg-experimental-powerpc
2013-05-07 23:48:48 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
FPR0 FPR1 FPR2 FPR3 FPR4 FPR5 FPR6 FPR7
FPR8 FPR9 FPR10 FPR11 FPR12 FPR13 FPR14 FPR15
FPR16 FPR17 FPR18 FPR19 FPR20 FPR21 FPR22 FPR23
FPR24 FPR25 FPR26 FPR27 FPR28 FPR29 FPR30 FPR31
Check in incomplete Linux PowerPC and M68K work. --HG-- branch : dtrg-experimental-powerpc
2013-05-07 23:48:48 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
REGISTERS
/* Reverse order to encourage ncg to allocate them from r31 down */
R31("r31") : GPR, REG, GPR31 regvar.
R30("r30") : GPR, REG, GPR30 regvar.
R29("r29") : GPR, REG, GPR29 regvar.
R28("r28") : GPR, REG, GPR28 regvar.
R27("r27") : GPR, REG, GPR27 regvar.
R26("r26") : GPR, REG, GPR26 regvar.
R25("r25") : GPR, REG, GPR25 regvar.
R24("r24") : GPR, REG, GPR24 regvar.
R23("r23") : GPR, REG, GPR23 regvar.
R22("r22") : GPR, REG, GPR22 regvar.
R21("r21") : GPR, REG, GPR21 regvar.
R20("r20") : GPR, REG, GPR20 regvar.
R19("r19") : GPR, REG, GPR19 regvar.
R18("r18") : GPR, REG, GPR18 regvar.
R17("r17") : GPR, REG, GPR17 regvar.
R16("r16") : GPR, REG, GPR16 regvar.
R15("r15") : GPR, REG, GPR15 regvar.
R14("r14") : GPR, REG, GPR14 regvar.
R13("r13") : GPR, REG, GPR13 regvar.
R12("r12") : GPR, REG, GPR12.
R11("r11") : GPR, GPR11.
R10("r10") : GPR, REG, GPR10.
R9("r9") : GPR, REG, GPR9.
R8("r8") : GPR, REG, GPR8.
R7("r7") : GPR, REG, GPR7.
R6("r6") : GPR, REG, GPR6.
R5("r5") : GPR, REG, GPR5.
R4("r4") : GPR, REG, GPR4.
R3("r3") : GPR, REG, GPR3.
FP("fp") : GPR, GPRFP.
SP("sp") : GPR, GPRSP.
R0("r0") : GPR, GPR0.
Check in incomplete Linux PowerPC and M68K work. --HG-- branch : dtrg-experimental-powerpc
2013-05-07 23:48:48 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
F31("f31") : FPR, FREG, FPR31.
F30("f30") : FPR, FREG, FPR30.
F29("f29") : FPR, FREG, FPR29.
F28("f28") : FPR, FREG, FPR28.
F27("f27") : FPR, FREG, FPR27.
F26("f26") : FPR, FREG, FPR26.
F25("f25") : FPR, FREG, FPR25.
F24("f24") : FPR, FREG, FPR24.
F23("f23") : FPR, FREG, FPR23.
F22("f22") : FPR, FREG, FPR22.
F21("f21") : FPR, FREG, FPR21.
F20("f20") : FPR, FREG, FPR20.
F19("f19") : FPR, FREG, FPR19.
F18("f18") : FPR, FREG, FPR18.
F17("f17") : FPR, FREG, FPR17.
F16("f16") : FPR, FREG, FPR16.
F15("f15") : FPR, FREG, FPR15.
F14("f14") : FPR, FREG, FPR14.
F13("f13") : FPR, FREG, FPR13.
F12("f12") : FPR, FREG, FPR12.
F11("f11") : FPR, FREG, FPR11.
F10("f10") : FPR, FREG, FPR10.
F9("f9") : FPR, FREG, FPR9.
F8("f8") : FPR, FREG, FPR8.
F7("f7") : FPR, FREG, FPR7.
F6("f6") : FPR, FREG, FPR6.
F5("f5") : FPR, FREG, FPR5.
F4("f4") : FPR, FREG, FPR4.
F3("f3") : FPR, FREG, FPR3.
F2("f2") : FPR, FREG, FPR2.
F1("f1") : FPR, FREG, FPR1.
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
F0("f0") : FPR, FPR0.
FS31("f31")=F31 : FSREG.
FS30("f30")=F30 : FSREG.
FS29("f29")=F29 : FSREG.
FS28("f28")=F28 : FSREG.
FS27("f27")=F27 : FSREG.
FS26("f26")=F26 : FSREG.
FS25("f25")=F25 : FSREG.
FS24("f24")=F24 : FSREG.
FS23("f23")=F23 : FSREG.
FS22("f22")=F22 : FSREG.
FS21("f21")=F21 : FSREG.
FS20("f20")=F20 : FSREG.
FS19("f19")=F19 : FSREG.
FS18("f18")=F18 : FSREG.
FS17("f17")=F17 : FSREG.
FS16("f16")=F16 : FSREG.
FS15("f15")=F15 : FSREG.
FS14("f14")=F14 : FSREG.
FS13("f13")=F13 : FSREG.
FS12("f12")=F12 : FSREG.
FS11("f11")=F11 : FSREG.
FS10("f10")=F10 : FSREG.
FS9("f9")=F9 : FSREG.
FS8("f8")=F8 : FSREG.
FS7("f7")=F7 : FSREG.
FS6("f6")=F6 : FSREG.
FS5("f5")=F5 : FSREG.
FS4("f4")=F4 : FSREG.
FS3("f3")=F3 : FSREG.
FS2("f2")=F2 : FSREG.
FS1("f1")=F1 : FSREG.
/* FS0("f0")=F0 */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
LR("lr") : SPR.
CTR("ctr") : SPR.
C0("cr0") : CR, CR0.
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
#define RSCRATCH R11
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
#define FSCRATCH F0
TOKENS
/* Used only in instruction descriptions (to generate the correct syntax). */
GPRINDIRECT = { GPR reg; INT off; } 4 off "(" reg ")".
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
CONST = { INT val; } 4 val.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Primitives */
LABEL = { ADDR adr; } 4 adr.
LOCAL = { INT off; } 4.
/* Allows us to use regvar() to refer to registers */
GPRE = { GPR reg; } 4 reg.
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
/* Constants on the stack */
CONST_N8000 = { INT val; } 4.
CONST_N7FFF_N0001 = { INT val; } 4.
CONST_0000_7FFF = { INT val; } 4.
CONST_8000 = { INT val; } 4.
CONST_8001_FFFF = { INT val; } 4.
CONST_HZ = { INT val; } 4.
CONST_HL = { INT val; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Expression partial results */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
SUM_RIS = { GPR reg; INT offhi; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
SUM_RC = { GPR reg; INT off; } 4.
SUM_RR = { GPR reg1; GPR reg2; } 4.
TRISTATE_RC_S = { GPR reg; INT val; } 4.
TRISTATE_RC_U = { GPR reg; INT val; } 4.
TRISTATE_RR_S = { GPR reg1; GPR reg2; } 4.
TRISTATE_RR_U = { GPR reg1; GPR reg2; } 4.
TRISTATE_FF = { FPR reg1; FPR reg2; } 4.
SEX_B = { GPR reg; } 4.
SEX_H = { GPR reg; } 4.
IND_RC_B = { GPR reg; INT off; } 4.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
IND_RR_B = { GPR reg1; GPR reg2; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
IND_RC_H = { GPR reg; INT off; } 4.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
IND_RR_H = { GPR reg1; GPR reg2; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
IND_RC_H_S = { GPR reg; INT off; } 4.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
IND_RR_H_S = { GPR reg1; GPR reg2; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
IND_RC_W = { GPR reg; INT off; } 4.
IND_RR_W = { GPR reg1; GPR reg2; } 4.
IND_RC_D = { GPR reg; INT off; } 8.
IND_RR_D = { GPR reg1; GPR reg2; } 8.
NOT_R = { GPR reg; } 4.
AND_RR = { GPR reg1; GPR reg2; } 4.
OR_RR = { GPR reg1; GPR reg2; } 4.
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
OR_RIS = { GPR reg; INT valhi; } 4.
OR_RC = { GPR reg; INT val; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
XOR_RR = { GPR reg1; GPR reg2; } 4.
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
XOR_RIS = { GPR reg; INT valhi; } 4.
XOR_RC = { GPR reg; INT val; } 4.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
SETS
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
/* signed 16-bit integer */
CONST2 = CONST_N8000 + CONST_N7FFF_N0001 + CONST_0000_7FFF.
/* integer that, when negated, fits signed 16-bit */
CONST2_WHEN_NEG = CONST_N7FFF_N0001 + CONST_0000_7FFF + CONST_8000.
/* unsigned 16-bit integer */
UCONST2 = CONST_0000_7FFF + CONST_8000 + CONST_8001_FFFF.
/* any constant on stack */
CONST_ALL = CONST_N8000 + CONST_N7FFF_N0001 + CONST_0000_7FFF +
CONST_8000 + CONST_8001_FFFF + CONST_HZ + CONST_HL.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
SUM_ALL = SUM_RC + SUM_RR.
TRISTATE_ALL = TRISTATE_RC_S + TRISTATE_RC_U + TRISTATE_RR_S +
TRISTATE_RR_U + TRISTATE_FF.
SEX_ALL = SEX_B + SEX_H.
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
LOGICAL_ALL = NOT_R + AND_RR + OR_RR + OR_RC + XOR_RR +
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
XOR_RC.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
/* indirect 4-byte value */
IND_ALL_W = IND_RC_W + IND_RR_W.
/* indirect 8-byte value */
Remove IND_LABEL_W and IND_LABEL_D Because li32 always loads a label into a GPR, it is sufficient to coerce LABEL to REG, then use IND_RC_W or IND_RC_D for indirection through the label.
2016-10-16 20:33:24 +00:00
IND_ALL_D = IND_RC_D + IND_RR_D.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
/* any indirect value that fits in a GPR */
IND_ALL_BHW = IND_RC_B + IND_RR_B + IND_RC_H + IND_RR_H +
IND_RC_H_S + IND_RR_H_S + IND_ALL_W.
/* anything killed by sti (store indirect) */
MEMORY = IND_ALL_BHW + IND_ALL_D.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
OP_ALL_W = SUM_ALL + TRISTATE_ALL + SEX_ALL + LOGICAL_ALL +
IND_ALL_W.
INSTRUCTIONS
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
add GPR:wo, GPR:ro, GPR:ro.
addX "add." GPR:wo, GPR:ro, GPR:ro.
addi GPR:wo, GPR:ro, CONST:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
addis GPR:wo, GPR:ro, CONST:ro.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
and GPR:wo, GPR:ro, GPR:ro.
andc GPR:wo, GPR:ro, GPR:ro.
andiX "andi." GPR:wo, GPR:ro, CONST:ro kills :cc.
andisX "andis." GPR:wo, GPR:ro, CONST:ro kills :cc.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
b LABEL:ro.
bc CONST:ro, CONST:ro, LABEL:ro.
bcctr CONST:ro, CONST:ro, CONST:ro.
bcctrl CONST:ro, CONST:ro, CONST:ro.
bclr CONST:ro, CONST:ro, CONST:ro.
bl LABEL:ro.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
cmp CR:ro, CONST:ro, GPR:ro, GPR:ro kills :cc.
cmpi CR:ro, CONST:ro, GPR:ro, CONST:ro kills :cc.
cmpl CR:ro, CONST:ro, GPR:ro, GPR:ro kills :cc.
cmpli CR:ro, CONST:ro, GPR:ro, CONST:ro kills :cc.
divw GPR:wo, GPR:ro, GPR:ro.
divwu GPR:wo, GPR:ro, GPR:ro.
eqv GPR:wo, GPR:ro, GPR:ro.
extsb GPR:wo, GPR:ro.
extsh GPR:wo, GPR:ro.
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fadd FREG:wo, FREG:ro, FREG:ro.
fadds FSREG:wo, FSREG:ro, FSREG:ro.
fcmpo CR:wo, FPR:ro, FPR:ro.
fdiv FREG:wo, FREG:ro, FREG:ro.
fdivs FSREG:wo, FSREG:ro, FSREG:ro.
fneg FREG:wo, FREG:ro.
fneg FSREG:wo, FSREG:ro.
fmul FREG:wo, FREG:ro, FREG:ro.
fmuls FSREG:wo, FSREG:ro, FSREG:ro.
frsp FSREG:wo, FREG:ro.
fsub FREG:wo, FREG:ro, FREG:ro.
fsubs FSREG:wo, FSREG:ro, FSREG:ro.
fmr FPR:wo, FPR:ro.
fmr FSREG:wo, FSREG:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lbz GPR:wo, GPRINDIRECT:ro.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
lbzx GPR:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lfd FPR:wo, GPRINDIRECT:ro.
lfdu FPR:wo, GPRINDIRECT:ro.
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
lfdx FPR:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lfs FSREG:wo, GPRINDIRECT:ro.
lfsu FSREG:wo, GPRINDIRECT:rw.
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
lfsx FSREG:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lha GPR:wo, GPRINDIRECT:ro.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
lhax GPR:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lhz GPR:wo, GPRINDIRECT:ro.
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
lhzx GPR:wo, GPR:ro, GPR:ro.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
li32 GPR:wo, LABEL:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lwzu GPR:wo, GPRINDIRECT:ro.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
lwzx GPR:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
lwz GPR:wo, GPRINDIRECT:ro.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
nand GPR:wo, GPR:ro, GPR:ro.
neg GPR:wo, GPR:ro.
nor GPR:wo, GPR:ro, GPR:ro.
mfcr GPR:wo.
mullw GPR:wo, GPR:ro, GPR:ro.
mfspr GPR:wo, SPR:ro.
mtspr SPR:wo, GPR:ro.
or GPR:wo, GPR:ro, GPR:ro.
orc GPR:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
ori GPR:wo, GPR:ro, CONST:ro.
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
oris GPR:wo, GPR:ro, CONST:ro.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
orX "or." GPR:wo, GPR:ro, GPR:ro kills :cc.
rlwinm GPR:wo, GPR:ro, CONST:ro, CONST:ro, CONST:ro.
slw GPR:wo, GPR:ro, GPR:ro.
subf GPR:wo, GPR:ro, GPR:ro.
sraw GPR:wo, GPR:ro, GPR:ro.
srawi GPR:wo, GPR:ro, CONST:ro.
srw GPR:wo, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
stb GPR:ro, GPRINDIRECT:rw.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
stbx GPR:ro, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
stfd FPR:ro, GPRINDIRECT:rw.
stfdu FPR:ro, GPRINDIRECT:rw.
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
stfdx FPR:ro, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
stfs FSREG:ro, GPRINDIRECT:rw.
stfsu FSREG:ro, GPRINDIRECT:rw.
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
stfsx FSREG:ro, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
sth GPR:ro, GPRINDIRECT:rw.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
sthx GPR:ro, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
stw GPR:ro, GPRINDIRECT:rw.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
stwx GPR:ro, GPR:ro, GPR:ro.
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
stwu GPR+GPRE:ro, GPRINDIRECT:rw.
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
xor GPR:wo, GPR:ro, GPR:ro.
xori GPR:wo, GPR:ro, CONST:ro.
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
xoris GPR:wo, GPR:ro, CONST:ro.
Remove the "invalid" stacking rule. When ncg fell back on this rule, it did emit the string "invalid" in the assembly code and caused a syntax error in the assembler. Adjust the stacking rules so we can stack LOCAL, CONST, and LABEL without falling back on the "invalid" rule, and so we can stack them when we have no free register except the scratch register.
2016-09-27 20:46:11 +00:00
Remove unused parts of mach/powerpc/ncg/table Remove unused tokens GPRINDIRECTLO, HILABEL, LOLABEL, LABELI. Also remove an #if 0 ... #endif group of patterns.
2016-10-16 00:00:48 +00:00
comment "!" LABEL:ro.
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
MOVES
from GPR to GPR
gen
COMMENT("move GPR->GPR")
or %2, %1, %1
/* GPRE exists solely to allow us to use regvar() (which can only be used in
an expression) as a register constant. */
from GPR to GPRE
gen
COMMENT("move GPR->GPRE")
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
or %2.reg, %1, %1
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Constants */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from CONST_ALL smalls(%val) to GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
COMMENT("move CONST_ALL->GPR smalls")
addi %2, R0, {CONST, %1.val}
from CONST_ALL + CONST to GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
COMMENT("move CONST_ALL->GPR")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
addis %2, R0, {CONST, hi(%1.val)}
ori %2, %2, {CONST, lo(%1.val)}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
/* Can't use addi %2, %2, {CONST, los(%1.val)}
* because %2 might be R0. */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from LABEL to GPR
gen
COMMENT("move LABEL->GPR")
Rename our pseudo-opcode 'la' to 'li32'. GNU as has "la %r4,8(%r3)" as an alias for "addi %r4,%r3,8", meaning to load the address of the thing at 8(%r3). Our 'la', now 'li32', makes an addis/ori pair to load an immediate 32-bit value. For example, "li32 r4,23456789" loads a big number.
2016-09-18 21:03:23 +00:00
li32 %2, {LABEL, %1.adr}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Sign extension */
from SEX_B to GPR
gen
COMMENT("move SEX_B->GPR")
extsb %2, %1.reg
from SEX_H to GPR
gen
COMMENT("move SEX_H->GPR")
extsh %2, %1.reg
/* Register + something */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from SUM_RIS to GPR
gen
COMMENT("move SUM_RIS->GPR")
addis %2, %1.reg, {CONST, %1.offhi}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from SUM_RC to GPR
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
gen
COMMENT("move SUM_RC->GPR")
addi %2, %1.reg, {CONST, %1.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from SUM_RR to GPR
gen
COMMENT("move SUM_RR->GPR")
add %2, %1.reg1, %1.reg2
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
/* Read byte */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from IND_RC_B to GPR
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move IND_RC_B->GPR")
lbz %2, {GPRINDIRECT, %1.reg, %1.off}
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from IND_RR_B to GPR
gen
COMMENT("move IND_RR_B->GPR")
lbzx %2, %1.reg1, %1.reg2
/* Write byte */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from GPR to IND_RC_B
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move GPR->IND_RC_B")
stb %1, {GPRINDIRECT, %2.reg, %2.off}
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from GPR to IND_RR_B
gen
COMMENT("move GPR->IND_RR_B")
stbx %1, %2.reg1, %2.reg2
/* Read halfword (short) */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from IND_RC_H to GPR
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move IND_RC_H->GPR")
lhz %2, {GPRINDIRECT, %1.reg, %1.off}
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from IND_RR_H to GPR
gen
COMMENT("move IND_RR_H->GPR")
lhzx %2, %1.reg1, %1.reg2
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from IND_RC_H_S to GPR
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move IND_RC_H_S->GPR")
lha %2, {GPRINDIRECT, %1.reg, %1.off}
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from IND_RR_H_S to GPR
gen
COMMENT("move IND_RR_H_S->GPR")
lhax %2, %1.reg1, %1.reg2
/* Write halfword */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from GPR to IND_RC_H
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move GPR->IND_RC_H")
sth %1, {GPRINDIRECT, %2.reg, %2.off}
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from GPR to IND_RR_H
gen
COMMENT("move GPR->IND_RR_H")
sthx %1, %2.reg1, %2.reg2
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Read word */
from IND_RC_W to GPR
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move IND_RC_W->GPR")
lwz %2, {GPRINDIRECT, %1.reg, %1.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from IND_RR_W to GPR
gen
COMMENT("move IND_RR_W->GPR")
lwzx %2, %1.reg1, %1.reg2
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from IND_RC_W to FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move IND_RC_W->FSREG")
lfs %2, {GPRINDIRECT, %1.reg, %1.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from IND_RR_W to FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("move IND_RR_W->FSREG")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
lfsx %2, %1.reg1, %1.reg2
Remove IND_LABEL_W and IND_LABEL_D Because li32 always loads a label into a GPR, it is sufficient to coerce LABEL to REG, then use IND_RC_W or IND_RC_D for indirection through the label.
2016-10-16 20:33:24 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Write word */
from GPR to IND_RC_W
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move GPR->IND_RC_W")
stw %1, {GPRINDIRECT, %2.reg, %2.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from GPR to IND_RR_W
gen
COMMENT("move GPR->IND_RR_W")
stwx %1, %2.reg1, %2.reg2
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from FSREG to IND_RC_W
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move FSREG->IND_RC_W")
stfs %1, {GPRINDIRECT, %2.reg, %2.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from FSREG to IND_RR_W
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("move FSREG->IND_RR_W")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
stfsx %1, %2.reg1, %2.reg2
/* Read double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from IND_RC_D to FPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move IND_RC_D->FPR")
lfd %2, {GPRINDIRECT, %1.reg, %1.off}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from IND_RR_D to FPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("move IND_RR_D->FPR")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
lfdx %2, %1.reg1, %1.reg2
/* Write double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from FPR to IND_RC_D
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Simplify moves to and from IND_RC_* Now that SUM_RC always has a signed 16-bit constant, it happens that the various IND_RC_* tokens also have a signed 16-bit constant, so we no longer need to touch the scratch register.
2016-10-16 20:02:25 +00:00
COMMENT("move FPR->IND_RC_D")
stfd %1, {GPRINDIRECT, %2.reg, %2.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from FPR to IND_RR_D
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("move FPR->IND_RR_W")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
stfdx %1, %2.reg1, %2.reg2
Remove IND_LABEL_W and IND_LABEL_D Because li32 always loads a label into a GPR, it is sufficient to coerce LABEL to REG, then use IND_RC_W or IND_RC_D for indirection through the label.
2016-10-16 20:33:24 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Extract condition code field (actually produces (CC&3)<<2) */
from CR0 to GPR
gen
COMMENT("move CR0->GPR")
mfcr %2
rlwinm %2, %2, {CONST, 4}, {CONST, 32-4}, {CONST, 31-2}
/* Comparisons */
from TRISTATE_RR_S to CR0
gen
cmp %2, {CONST, 0}, %1.reg1, %1.reg2
from TRISTATE_RR_U to CR0
gen
cmpl %2, {CONST, 0}, %1.reg1, %1.reg2
from TRISTATE_RC_S to CR0
gen
COMMENT("move TRISTATE_RC_S->CR0 large")
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move {CONST, %1.val}, RSCRATCH
cmp %2, {CONST, 0}, %1.reg, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from TRISTATE_RC_U smallu(%val) to CR0
gen
COMMENT("move TRISTATE_RC_U->CR0 small")
cmpli %2, {CONST, 0}, %1.reg, {CONST, %1.val}
from TRISTATE_RC_U to CR0
gen
COMMENT("move TRISTATE_RC_U->CR0")
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move {CONST, %1.val}, RSCRATCH
cmpl %2, {CONST, 0}, %1.reg, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from TRISTATE_FF to CR0
gen
COMMENT("move TRISTATE_FF->CR0")
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fcmpo %2, %1.reg1, %1.reg2
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from GPR to CR0
gen
COMMENT("move GPR->CR0")
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
orX RSCRATCH, %1, %1 /* alas, can't call test */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from TRISTATE_RR_S + TRISTATE_RC_S + TRISTATE_FF to GPR
gen
COMMENT("move TRISTATE_R*_S->GPR")
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tristate_s_table"}, %2
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %2, %2, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from TRISTATE_RR_U + TRISTATE_RC_U to GPR
gen
COMMENT("move TRISTATE_R*_U->GPR")
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tristate_u_table"}, %2
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %2, %2, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Logicals */
from NOT_R to GPR
gen
COMMENT("move NOT_R->GPR")
nor %2, %1.reg, %1.reg
from AND_RR to GPR
gen
COMMENT("move AND_RR->GPR")
and %2, %1.reg1, %1.reg2
from OR_RR to GPR
gen
COMMENT("move OR_RR->GPR")
or %2, %1.reg1, %1.reg2
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from OR_RIS to GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
COMMENT("move OR_RIS->GPR")
oris %2, %1.reg, {CONST, %1.valhi}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from OR_RC to GPR
gen
COMMENT("move OR_RC->GPR")
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
ori %2, %1.reg, {CONST, %1.val}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from XOR_RR to GPR
gen
COMMENT("move XOR_RR->GPR")
xor %2, %1.reg1, %1.reg2
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from XOR_RIS to GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
COMMENT("move XOR_RIS->GPR")
xoris %2, %1.reg, {CONST, %1.valhi}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from XOR_RC to GPR
gen
COMMENT("move XOR_RC->GPR")
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
xori %2, %1.reg, {CONST, %1.val}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Miscellaneous */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from OP_ALL_W + LABEL + CONST_ALL to GPRE
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %1, %2.reg
TESTS
to test GPR
gen
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
orX RSCRATCH, %1, %1
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
STACKINGRULES
Remove the "invalid" stacking rule. When ncg fell back on this rule, it did emit the string "invalid" in the assembly code and caused a syntax error in the assembler. Adjust the stacking rules so we can stack LOCAL, CONST, and LABEL without falling back on the "invalid" rule, and so we can stack them when we have no free register except the scratch register.
2016-09-27 20:46:11 +00:00
from LOCAL to STACK
gen
COMMENT("stack LOCAL")
stwu {GPRE, regvar(%1.off)}, {GPRINDIRECT, SP, 0-4}
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
from REG to STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
COMMENT("stack REG")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
stwu %1, {GPRINDIRECT, SP, 0-4}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from CONST_ALL + LABEL to STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
COMMENT("stack CONST_ALL + LABEL")
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move %1, RSCRATCH
stwu RSCRATCH, {GPRINDIRECT, SP, 0-4}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from SEX_B to STACK
gen
COMMENT("stack SEX_B")
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
extsb RSCRATCH, %1.reg
stwu RSCRATCH, {GPRINDIRECT, SP, 0-4}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from SEX_H to STACK
gen
COMMENT("stack SEX_H")
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
extsh RSCRATCH, %1.reg
stwu RSCRATCH, {GPRINDIRECT, SP, 0-4}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from SUM_ALL + TRISTATE_ALL + LOGICAL_ALL to STACK
gen
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
move %1, RSCRATCH
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
stwu RSCRATCH, {GPRINDIRECT, SP, 0-4}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from IND_ALL_BHW to STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move %1, RSCRATCH
stwu RSCRATCH, {GPRINDIRECT, SP, 0-4}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from IND_ALL_D to STACK
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
move %1, FSCRATCH
stfdu FSCRATCH, {GPRINDIRECT, SP, 0-8}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
from FREG to STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("stack FPR")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
stfdu %1, {GPRINDIRECT, SP, 0-8}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from FSREG to STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("stack FSREG")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
stfsu %1, {GPRINDIRECT, SP, 0-4}
Remove the "invalid" stacking rule. When ncg fell back on this rule, it did emit the string "invalid" in the assembly code and caused a syntax error in the assembler. Adjust the stacking rules so we can stack LOCAL, CONST, and LABEL without falling back on the "invalid" rule, and so we can stack them when we have no free register except the scratch register.
2016-09-27 20:46:11 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
COERCIONS
from REG
uses REG
gen
COMMENT("coerce REG->REG")
move %1, %a
yields %a
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
from CONST_ALL
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses REG
gen
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
COMMENT("coerce CONST_ALL->REG")
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move %1, %a
yields %a
from LABEL
uses REG
gen
COMMENT("coerce LABEL->REG")
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
move %1, %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
from STACK
uses REG
gen
COMMENT("coerce STACK->REG")
lwz %a, {GPRINDIRECT, SP, 0}
addi SP, SP, {CONST, 4}
yields %a
from SEX_B
uses REG
gen
COMMENT("coerce SEX_B->REG")
extsb %a, %1.reg
yields %a
from SEX_H
uses REG
gen
COMMENT("coerce SEX_H->REG")
extsh %a, %1.reg
yields %a
from SUM_ALL + TRISTATE_ALL + LOGICAL_ALL
uses REG
gen
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
move %1, %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
from FSREG
uses FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fmr %a, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
from FREG
uses FREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fmr %a, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from STACK
uses FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("coerce STACK->FREG")
lfd %a, {GPRINDIRECT, SP, 0}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
addi SP, SP, {CONST, 8}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from STACK
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
uses FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
COMMENT("coerce STACK->FSREG")
lfs %a, {GPRINDIRECT, SP, 0}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
addi SP, SP, {CONST, 4}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
from IND_ALL_BHW
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses REG
gen
move %1, %a
yields %a
from IND_ALL_W
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
uses FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
move %1, %a
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
from IND_ALL_D
uses FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
move %1, %a
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
PATTERNS
/* Intrinsics */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
pat loc $1==(0-0x8000) /* Load constant */
yields {CONST_N8000, $1}
pat loc $1>=(0-0x7FFF) && $1<=(0-1)
yields {CONST_N7FFF_N0001, $1}
pat loc $1>=0 && $1<=0x7FFF
yields {CONST_0000_7FFF, $1}
pat loc $1==0x8000
yields {CONST_8000, $1}
pat loc $1>=0x8001 && $1<=0xFFFF
yields {CONST_8001_FFFF, $1}
pat loc lo($1)==0
yields {CONST_HZ, $1}
pat loc
yields {CONST_HL, $1}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat dup $1==INT32 /* Duplicate word on top of stack */
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
with REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %1 %1
Add a rule for sdl ldl $1==$2 to work around a bug. In our powerpc table, sdl fails to kill the old value of the local. This is a bug, because a later ldl can load the old value instead of the newly stored value. By rewriting "sdl 0" "ldl 0" as "dup 8" "sdl 0", the newly added rule works around the bug, but only when the ldl is immediately after the sdl. This rule improves code that uses double-precision floating point. The output of printf("%f", 6.0) in C changes from all zero digits to "6000000" but still doesn't print the decimal point. The result of atof("-123.456") becomes correct. In startrek, I can now move the Enterprise, but I still can't fire phasers without crashing the game. We already have a rule for stl lol $1==$2. We had two copies of the rule, so I am deleting the second copy.
2016-09-30 15:50:50 +00:00
with FSREG
yields %1 %1
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat dup $1==INT64 /* Duplicate double-word on top of stack */
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
with REG REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %2 %1 %2 %1
Add a rule for sdl ldl $1==$2 to work around a bug. In our powerpc table, sdl fails to kill the old value of the local. This is a bug, because a later ldl can load the old value instead of the newly stored value. By rewriting "sdl 0" "ldl 0" as "dup 8" "sdl 0", the newly added rule works around the bug, but only when the ldl is immediately after the sdl. This rule improves code that uses double-precision floating point. The output of printf("%f", 6.0) in C changes from all zero digits to "6000000" but still doesn't print the decimal point. The result of atof("-123.456") becomes correct. In startrek, I can now move the Enterprise, but I still can't fire phasers without crashing the game. We already have a rule for stl lol $1==$2. We had two copies of the rule, so I am deleting the second copy.
2016-09-30 15:50:50 +00:00
with FREG
yields %1 %1
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat exg $1==INT32 /* Exchange top two words on stack */
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
with REG REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %1 %2
pat stl lol $1==$2 /* Store then load local */
leaving
dup 4
stl $1
Add a rule for sdl ldl $1==$2 to work around a bug. In our powerpc table, sdl fails to kill the old value of the local. This is a bug, because a later ldl can load the old value instead of the newly stored value. By rewriting "sdl 0" "ldl 0" as "dup 8" "sdl 0", the newly added rule works around the bug, but only when the ldl is immediately after the sdl. This rule improves code that uses double-precision floating point. The output of printf("%f", 6.0) in C changes from all zero digits to "6000000" but still doesn't print the decimal point. The result of atof("-123.456") becomes correct. In startrek, I can now move the Enterprise, but I still can't fire phasers without crashing the game. We already have a rule for stl lol $1==$2. We had two copies of the rule, so I am deleting the second copy.
2016-09-30 15:50:50 +00:00
pat sdl ldl $1==$2 /* Store then load double local */
leaving
dup 8
sdl $1
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat lal sti lal loi $1==$3 && $2==$4 /* Store then load local, of a different size */
leaving
dup INT32
lal $1
sti $2
pat ste loe $1==$2 /* Store then load external */
leaving
dup 4
ste $1
/* Type conversions */
pat loc loc cii loc loc cii $1==$4 && $2==$5 /* madness, generated by the C compiler */
leaving
loc $1
loc $2
cii
pat loc loc cii loc loc cii $2==INT32 && $5==INT32 && $4<$2 /* madness, generated by the C compiler */
leaving
loc $4
loc $5
cii
pat loc loc ciu /* signed X -> unsigned X */
leaving
loc $1
loc $2
cuu
pat loc loc cuu $1==$2 /* unsigned X -> unsigned X */
/* nop */
pat loc loc cii $1==$2 /* signed X -> signed X */
/* nop */
pat loc loc cui $1==$2 /* unsigned X -> signed X */
/* nop */
pat loc loc cui $1==INT8 && $2==INT32 /* unsigned char -> signed int */
/* nop */
pat loc loc cui $1==INT16 && $2==INT32 /* unsigned short -> signed int */
/* nop */
pat loc loc cii $1==INT8 && $2==INT32 /* signed char -> signed int */
with GPR
yields {SEX_B, %1}
pat loc loc cii $1==2 && $2==4 /* signed char -> signed short */
with GPR
yields {SEX_H, %1}
/* Local variables */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
pat lal smalls($1) /* Load address of local */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {SUM_RC, FP, $1}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
pat lal /* Load address of local */
uses REG={SUM_RIS, FP, his($1)}
yields {SUM_RC, %a, los($1)}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat lol inreg($1)>0 /* Load from local */
yields {LOCAL, $1}
pat lol /* Load from local */
leaving
lal $1
loi INT32
pat ldl /* Load double-word from local */
leaving
lal $1
loi INT32*2
pat stl inreg($1)>0 /* Store to local */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_ALL + LABEL + GPR + OP_ALL_W
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
kills regvar($1), LOCAL %off==$1
gen
move %1, {GPRE, regvar($1)}
pat stl /* Store to local */
leaving
lal $1
sti INT32
pat sdl /* Store double-word to local */
leaving
lal $1
sti INT32*2
pat lil inreg($1)>0 /* Load from indirected local */
uses REG
gen
lwz %a, {GPRINDIRECT, regvar($1), 0}
yields %a
pat lil /* Load from indirected local */
leaving
lol $1
loi INT32
pat sil /* Save to indirected local */
leaving
lol $1
sti INT32
Add a rule for sdl ldl $1==$2 to work around a bug. In our powerpc table, sdl fails to kill the old value of the local. This is a bug, because a later ldl can load the old value instead of the newly stored value. By rewriting "sdl 0" "ldl 0" as "dup 8" "sdl 0", the newly added rule works around the bug, but only when the ldl is immediately after the sdl. This rule improves code that uses double-precision floating point. The output of printf("%f", 6.0) in C changes from all zero digits to "6000000" but still doesn't print the decimal point. The result of atof("-123.456") becomes correct. In startrek, I can now move the Enterprise, but I still can't fire phasers without crashing the game. We already have a rule for stl lol $1==$2. We had two copies of the rule, so I am deleting the second copy.
2016-09-30 15:50:50 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat zrl /* Zero local */
leaving
loc 0
stl $1
pat inl /* Increment local */
leaving
lol $1
loc 1
adi 4
stl $1
pat del /* Decrement local */
leaving
lol $1
loc 1
sbi 4
stl $1
/* Global variables */
pat lpi /* Load address of external function */
leaving
lae $1
pat lae /* Load address of external */
yields {LABEL, $1}
pat loe /* Load word external */
leaving
lae $1
loi INT32
pat ste /* Store word external */
leaving
lae $1
sti INT32
pat lde /* Load double-word external */
leaving
lae $1
loi INT64
pat sde /* Store double-word external */
leaving
lae $1
sti INT64
pat zre /* Zero external */
leaving
loc 0
ste $1
pat ine /* Increment external */
uses REG={LABEL, $1}, REG
gen
lwz %b, {GPRINDIRECT, %a, 0}
addi %b, %b, {CONST, 1}
stw %b, {GPRINDIRECT, %a, 0}
pat dee /* Decrement external */
uses REG={LABEL, $1}, REG
gen
lwz %b, {GPRINDIRECT, %a, 0}
addi %b, %b, {CONST, 0-1}
stw %b, {GPRINDIRECT, %a, 0}
/* Structures */
pat lof /* Load word offsetted */
leaving
adp $1
loi INT32
pat ldf /* Load double-word offsetted */
leaving
adp $1
loi INT64
pat stf /* Store word offsetted */
leaving
adp $1
sti INT32
pat sdf /* Store double-word offsetted */
leaving
adp $1
sti INT64
/* Loads and stores */
pat loi $1==INT8 /* Load byte indirect */
with GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RC_B, %1, 0}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with SUM_RR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RR_B, %1.reg1, %1.reg2}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with SUM_RC
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RC_B, %1.reg, %1.off}
pat loi loc loc cii $1==INT16 && $2==INT16 && $3==INT32
/* Load half-word indirect and sign extend */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RC_H_S, %1, 0}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with SUM_RR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RR_H_S, %1.reg1, %1.reg2}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with SUM_RC
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RC_H_S, %1.reg, %1.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat loi $1==INT16 /* Load half-word indirect */
with GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RC_H, %1, 0}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with SUM_RR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RR_H, %1.reg1, %1.reg2}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with SUM_RC
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
yields {IND_RC_H, %1.reg, %1.off}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat loi $1==INT32 /* Load word indirect */
with GPR
yields {IND_RC_W, %1, 0}
with SUM_RC
yields {IND_RC_W, %1.reg, %1.off}
with SUM_RR
yields {IND_RR_W, %1.reg1, %1.reg2}
pat loi $1==INT64 /* Load double-word indirect */
with GPR
yields {IND_RC_D, %1, 0}
with SUM_RC
yields {IND_RC_D, %1.reg, %1.off}
with SUM_RR
yields {IND_RR_D, %1.reg1, %1.reg2}
pat loi /* Load arbitrary size */
leaving
loc $1
los INT32
pat los /* Load arbitrary size */
with GPR3 GPR4 STACK
kills ALL
gen
bl {LABEL, ".los"}
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat sti $1==INT8 /* Store byte indirect */
with GPR GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
stb %2, {GPRINDIRECT, %1, 0}
with SUM_RR GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
stbx %2, %1.reg1, %1.reg2
with SUM_RC GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_B, %1.reg, %1.off}
with GPR SEX_B
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
stb %2.reg, {GPRINDIRECT, %1, 0}
with SUM_RR SEX_B
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
stbx %2.reg, %1.reg1, %1.reg2
with SUM_RC SEX_B
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2.reg, {IND_RC_B, %1.reg, %1.off}
pat sti $1==INT16 /* Store half-word indirect */
with GPR GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
sth %2, {GPRINDIRECT, %1, 0}
with SUM_RR GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
sthx %2, %1.reg1, %1.reg2
with SUM_RC GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_H, %1.reg, %1.off}
with GPR SEX_H
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
sth %2.reg, {GPRINDIRECT, %1, 0}
with SUM_RR SEX_H
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
sthx %2.reg, %1.reg1, %1.reg2
with SUM_RC SEX_H
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2.reg, {IND_RC_H, %1.reg, %1.off}
pat sti $1==INT32 /* Store word indirect */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with GPR GPR+FSREG
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_W, %1, 0}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with SUM_RR GPR+FSREG
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RR_W, %1.reg1, %1.reg2}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with SUM_RC GPR+FSREG
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_W, %1.reg, %1.off}
pat sti $1==INT64 /* Store double-word indirect */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with GPR FREG
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_D, %1, 0}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with SUM_RR FREG
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RR_D, %1.reg1, %1.reg2}
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with SUM_RC FREG
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_D, %1.reg, %1.off}
with GPR GPR GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
stw %2, {GPRINDIRECT, %1, 0}
stw %3, {GPRINDIRECT, %1, 4}
with SUM_RC GPR GPR
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
kills MEMORY
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
move %2, {IND_RC_W, %1.reg, %1.off}
move %3, {IND_RC_W, %1.reg, %1.off+4}
pat sti /* Store arbitrary size */
leaving
loc $1
sts INT32
Add "kills MEMORY" to powerpc sti rules. Adjust some of the loi rules (and associated moves) so we can identify the tokens that must be in MEMORY. With this commit, I can navigate the Enterprise even if I comment out my work-around from e22c888.
2016-10-16 22:13:39 +00:00
pat sts /* Store arbitrary size */
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
with GPR3 GPR4 STACK
kills ALL
gen
bl {LABEL, ".sts"}
/* Arithmetic wrappers */
pat ads $1==4 /* Add var to pointer */
leaving adi $1
pat sbs $1==4 /* Subtract var from pointer */
leaving sbi $1
pat adp /* Add constant to pointer */
leaving
loc $1
adi 4
pat adu /* Add unsigned */
leaving
adi $1
pat sbu /* Subtract unsigned */
leaving
sbi $1
pat inc /* Add 1 */
leaving
loc 1
adi 4
pat dec /* Subtract 1 */
leaving
loc 1
sbi 4
pat loc mlu $2==2 /* Unsigned multiply by constant */
leaving
loc $1
mli 4
pat mlu /* Unsigned multiply by var */
leaving
mli $1
pat loc slu /* Shift left unsigned by constant amount */
leaving
loc $1
sli $2
pat slu /* Shift left unsigned by variable amount */
leaving
sli $1
/* Word arithmetic */
pat adi $1==4 /* Add word (second + top) */
with REG REG
yields {SUM_RR, %1, %2}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST2 REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {SUM_RC, %2, %1.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG CONST2
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {SUM_RC, %1, %2.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_HZ REG
uses reusing %2, REG={SUM_RIS, %2, his(%1.val)}
yields %a
with REG CONST_HZ
uses reusing %1, REG={SUM_RIS, %1, his(%2.val)}
yields %a
with CONST_ALL-CONST2-CONST_HZ REG
uses reusing %2, REG={SUM_RIS, %2, his(%1.val)}
yields {SUM_RC, %a, los(%1.val)}
with REG CONST_ALL-CONST2-CONST_HZ
uses reusing %1, REG={SUM_RIS, %1, his(%2.val)}
yields {SUM_RC, %a, los(%2.val)}
with CONST_ALL LABEL
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {LABEL, %2.adr+%1.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat sbi $1==4 /* Subtract word (second - top) */
with REG REG
uses reusing %2, REG
gen
subf %a, %1, %2
yields %a
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST2_WHEN_NEG REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {SUM_RC, %2, 0-%1.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_HZ REG
uses reusing %2, REG={SUM_RIS, %2, his(0-%1.val)}
yields %a
with CONST_ALL-CONST2_WHEN_NEG-CONST_HZ REG
uses reusing %2, REG={SUM_RIS, %2, his(0-%1.val)}
yields {SUM_RC, %a, los(0-%1.val)}
with CONST_ALL LABEL
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {LABEL, %2.adr+(0-%1.val)}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat ngi $1==4 /* Negate word */
with REG
uses reusing %1, REG
gen
neg %a, %1
yields %a
pat mli $1==4 /* Multiply word (second * top) */
with REG REG
uses reusing %2, REG
gen
mullw %a, %2, %1
yields %a
pat dvi $1==4 /* Divide word (second / top) */
with REG REG
uses reusing %2, REG
gen
divw %a, %2, %1
yields %a
pat dvu $1==4 /* Divide unsigned word (second / top) */
with REG REG
uses reusing %2, REG
gen
divwu %a, %2, %1
yields %a
pat rmi $1==4 /* Remainder word (second % top) */
with REG REG
uses REG
gen
divw %a, %2, %1
mullw %a, %a, %1
subf %a, %a, %2
yields %a
pat rmu $1==4 /* Remainder unsigned word (second % top) */
with REG REG
uses REG
gen
divwu %a, %2, %1
mullw %a, %a, %1
subf %a, %a, %2
yields %a
pat and $1==4 /* AND word */
with GPR NOT_R
uses reusing %1, REG
gen
andc %a, %1, %2.reg
yields %a
with NOT_R GPR
uses reusing %1, REG
gen
andc %a, %2, %1.reg
yields %a
with GPR GPR
yields {AND_RR, %1, %2}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with GPR UCONST2
uses reusing %1, REG
gen
andiX %a, %1, {CONST, %2.val}
yields %a
with UCONST2 GPR
uses reusing %2, REG
gen
andiX %a, %2, {CONST, %1.val}
yields %a
with GPR CONST_HZ
uses reusing %1, REG
gen
andisX %a, %1, {CONST, hi(%2.val)}
yields %a
with CONST_HZ GPR
uses reusing %2, REG
gen
andisX %a, %2, {CONST, hi(%1.val)}
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat and !defined($1) /* AND set */
with STACK
gen
bl {LABEL, ".and"}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat ior $1==4 /* OR word */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG NOT_R
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %1, REG
gen
orc %a, %1, %2.reg
yields %a
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with NOT_R REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %2, REG
gen
orc %a, %2, %1.reg
yields %a
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {OR_RR, %1, %2}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG UCONST2
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {OR_RC, %1, %2.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with UCONST2 REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {OR_RC, %2, %1.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG CONST_HZ
uses reusing %1, REG={OR_RIS, %1, hi(%2.val)}
yields %a
with CONST_HZ REG
uses reusing %2, REG={OR_RIS, %2, hi(%1.val)}
yields %a
with REG CONST_ALL-UCONST2-CONST_HZ
uses reusing %1, REG={OR_RIS, %1, hi(%2.val)}
yields {OR_RC, %1, lo(%2.val)}
with CONST_ALL-UCONST2-CONST_HZ REG
uses reusing %2, REG={OR_RIS, %2, hi(%1.val)}
yields {OR_RC, %2, lo(%1.val)}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat ior !defined($1) /* OR set */
with STACK
gen
bl {LABEL, ".ior"}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat xor $1==4 /* XOR word */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {XOR_RR, %1, %2}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG UCONST2
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {XOR_RC, %1, %2.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with UCONST2 REG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {XOR_RC, %2, %1.val}
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with REG CONST_HZ
uses reusing %1, REG={XOR_RIS, %1, hi(%2.val)}
yields %a
with CONST_HZ REG
uses reusing %2, REG={XOR_RIS, %2, hi(%1.val)}
yields %a
with REG CONST_ALL-UCONST2-CONST_HZ
uses reusing %1, REG={XOR_RIS, %1, hi(%2.val)}
yields {XOR_RC, %1, lo(%2.val)}
with CONST_ALL-UCONST2-CONST_HZ REG
uses reusing %2, REG={XOR_RIS, %2, hi(%1.val)}
yields {XOR_RC, %2, lo(%1.val)}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat xor !defined($1) /* XOR set */
with STACK
gen
bl {LABEL, ".xor"}
pat com $1==INT32 /* NOT word */
with AND_RR
uses REG
gen
nand %a, %1.reg1, %1.reg2
yields %a
with OR_RR
uses REG
gen
nor %a, %1.reg1, %1.reg2
yields %a
with XOR_RR
uses REG
gen
eqv %a, %1.reg1, %1.reg2
yields %a
with GPR
yields {NOT_R, %1}
pat com !defined($1) /* NOT set */
with STACK
gen
bl {LABEL, ".com"}
pat sli $1==4 /* Shift left (second << top) */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_ALL GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %2, REG
gen
rlwinm %a, %2, {CONST, (%1.val & 0x1F)}, {CONST, 0}, {CONST, 31-(%1.val & 0x1F)}
yields %a
with GPR GPR
uses reusing %2, REG
gen
slw %a, %2, %1
yields %a
pat sri $1==4 /* Shift right signed (second >> top) */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_ALL GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %2, REG
gen
srawi %a, %2, {CONST, %1.val & 0x1F}
yields %a
with GPR GPR
uses reusing %2, REG
gen
sraw %a, %2, %1
yields %a
pat sru $1==4 /* Shift right unsigned (second >> top) */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_ALL GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %2, REG
gen
rlwinm %a, %2, {CONST, 32-(%1.val & 0x1F)}, {CONST, (%1.val & 0x1F)}, {CONST, 31}
yields %a
with GPR GPR
uses reusing %2, REG
gen
srw %a, %2, %1
yields %a
/* Arrays */
pat aar $1==INT32 /* Index array */
with GPR3 GPR4 GPR5
gen
bl {LABEL, ".aar4"}
yields R3
pat lae lar $2==INT32 && nicesize(rom($1, 3)) /* Load array */
leaving
lae $1
aar INT32
loi rom($1, 3)
pat lar $1==INT32 /* Load array */
with GPR3 GPR4 GPR5 STACK
kills ALL
gen
bl {LABEL, ".lar4"}
pat lae sar $2==INT32 && nicesize(rom($1, 3)) /* Store array */
leaving
lae $1
aar INT32
sti rom($1, 3)
pat sar $1==INT32 /* Store array */
with GPR3 GPR4 GPR5 STACK
kills ALL
gen
bl {LABEL, ".sar4"}
/* Sets */
pat set defined($1) /* Create word with set bit */
leaving
loc 1
exg INT32
sli INT32
pat set !defined($1) /* Create structure with set bit (variable) */
with GPR3 GPR4 STACK
gen
bl {LABEL, ".set"}
pat inn defined($1) /* Test for set bit */
leaving
set INT32
and INT32
pat inn !defined($1) /* Test for set bit (variable) */
with GPR3 STACK
gen
bl {LABEL, ".inn"}
/* Boolean resolutions */
pat teq /* top = (top == 0) */
with TRISTATE_ALL + GPR
uses reusing %1, REG
gen
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".teq_table"}, %a
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %a, %a, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
pat tne /* top = (top != 0) */
with TRISTATE_ALL + GPR
uses reusing %1, REG
gen
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tne_table"}, %a
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %a, %a, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
pat tlt /* top = (top < 0) */
with TRISTATE_ALL + GPR
uses reusing %1, REG
gen
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tlt_table"}, %a
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %a, %a, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
pat tle /* top = (top <= 0) */
with TRISTATE_ALL + GPR
uses reusing %1, REG
gen
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tle_table"}, %a
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %a, %a, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
pat tgt /* top = (top > 0) */
with TRISTATE_ALL + GPR
uses reusing %1, REG
gen
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tgt_table"}, %a
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %a, %a, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
pat tge /* top = (top >= 0) */
with TRISTATE_ALL + GPR
uses reusing %1, REG
gen
move %1, C0
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
move C0, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
move {LABEL, ".tge_table"}, %a
Rename SCRATCH to RSCRATCH. Never stack RSCRATCH nor FSCRATCH. Rename the scratch gpr (currently r11) from SCRATCH to RSCRATCH so I can search for RSCRATCH without finding FSCRATCH. I also want to avoid confusion with the SCRATCH keyword of the old code generator (cg which came before ncg). Change the stacking rules to prevent stacking of RSCRATCH or FSCRATCH or any other GPR or FPR that isn't an allocatable REG or FREG. Then ncgg rejects any rule that tries to stack a GPR or FPR, so change such rules to stack a REG or FREG.
2016-10-07 00:47:42 +00:00
lwzx %a, %a, RSCRATCH
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields %a
/* Simple branches */
pat zeq /* Branch if signed top == 0 */
with TRISTATE_ALL+GPR STACK
gen
move %1, C0
bc IFTRUE, EQ, {LABEL, $1}
pat beq
leaving
cmi INT32
zeq $1
pat zne /* Branch if signed top != 0 */
with TRISTATE_ALL+GPR STACK
gen
move %1, C0
bc IFFALSE, EQ, {LABEL, $1}
pat bne
leaving
cmi INT32
zne $1
pat zgt /* Branch if signed top > 0 */
with TRISTATE_ALL+GPR STACK
gen
move %1, C0
bc IFTRUE, GT, {LABEL, $1}
pat bgt
leaving
cmi INT32
zgt $1
pat zge /* Branch if signed top >= 0 */
with TRISTATE_ALL+GPR STACK
gen
move %1, C0
bc IFFALSE, LT, {LABEL, $1}
pat bge
leaving
cmi INT32
zge $1
pat zlt /* Branch if signed top < 0 */
with TRISTATE_ALL+GPR STACK
gen
move %1, C0
bc IFTRUE, LT, {LABEL, $1}
pat blt
leaving
cmi INT32
zlt $1
pat zle /* Branch if signed top >= 0 */
with TRISTATE_ALL+GPR STACK
gen
move %1, C0
bc IFFALSE, GT, {LABEL, $1}
pat ble
leaving
cmi INT32
zle $1
/* Compare and jump */
pat cmi /* Signed tristate compare */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_ALL GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {TRISTATE_RC_S, %2, %1.val}
with GPR GPR
yields {TRISTATE_RR_S, %2, %1}
pat cmu /* Unsigned tristate compare */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_ALL GPR
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
yields {TRISTATE_RC_U, %2, %1.val}
with GPR GPR
yields {TRISTATE_RR_U, %2, %1}
pat cmp /* Compare pointers */
leaving
cmu INT32
pat cms $1==INT32 /* Compare blocks (word sized) */
leaving
cmi INT32
/* Other branching and labelling */
pat lab topeltsize($1)==4 && !fallthrough($1)
gen
labeldef $1
yields R3
pat lab topeltsize($1)==4 && fallthrough($1)
with GPR3
gen
labeldef $1
yields %1
pat lab topeltsize($1)!=4
with STACK
kills ALL
gen
labeldef $1
pat bra topeltsize($1)==4 /* Unconditional jump with TOS GPRister */
with GPR3 STACK
gen
b {LABEL, $1}
pat bra topeltsize($1)!=4 /* Unconditional jump without TOS GPRister */
with STACK
gen
b {LABEL, $1}
/* Miscellaneous */
pat cal /* Call procedure */
with STACK
kills ALL
gen
bl {LABEL, $1}
pat cai /* Call procedure indirect */
with GPR STACK
kills ALL
gen
mtspr CTR, %1
bcctrl ALWAYS, {CONST, 0}, {CONST, 0}
pat lfr $1==INT32 /* Load function result, word */
yields R3
pat lfr $1==INT64 /* Load function result, double-word */
yields R4 R3
pat ret $1==0 /* Return from procedure */
gen
return
b {LABEL, ".ret"}
pat ret $1==INT32 /* Return from procedure, word */
with GPR3
gen
return
b {LABEL, ".ret"}
pat ret $1==INT64 /* Return from procedure, double-word */
with GPR3 GPR4
gen
return
b {LABEL, ".ret"}
pat blm /* Block move constant length */
with GPR GPR STACK
uses REG
gen
move {CONST, $1}, %a
stwu %a, {GPRINDIRECT, SP, 0-4}
stwu %2, {GPRINDIRECT, SP, 0-4}
stwu %1, {GPRINDIRECT, SP, 0-4}
bl {LABEL, "_memmove"}
addi SP, SP, {CONST, 12}
pat bls /* Block move variable length */
with GPR GPR GPR STACK
gen
stwu %1, {GPRINDIRECT, SP, 0-4}
stwu %3, {GPRINDIRECT, SP, 0-4}
stwu %2, {GPRINDIRECT, SP, 0-4}
bl {LABEL, "_memmove"}
addi SP, SP, {CONST, 12}
pat csa /* Array-lookup switch */
with GPR3 GPR4 STACK
gen
b {LABEL, ".csa"}
pat csb /* Table-lookup switch */
with GPR3 GPR4 STACK
gen
b {LABEL, ".csb"}
/* EM specials */
pat fil /* Set current filename */
leaving
lae $1
Remove .linenumber and .filename; use hol0 and hol0+4. We need this because some .e files in lang/ are using 'loe 0' and 'lae 4' to load the line number from hol0 and filename from hol0+4.
2016-09-30 17:40:36 +00:00
ste "hol0+4"
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat lin /* Set current line number */
leaving
loc $1
Remove .linenumber and .filename; use hol0 and hol0+4. We need this because some .e files in lang/ are using 'loe 0' and 'lae 4' to load the line number from hol0 and filename from hol0+4.
2016-09-30 17:40:36 +00:00
ste "hol0"
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat lni /* Increment line number */
leaving
Remove .linenumber and .filename; use hol0 and hol0+4. We need this because some .e files in lang/ are using 'loe 0' and 'lae 4' to load the line number from hol0 and filename from hol0+4.
2016-09-30 17:40:36 +00:00
ine "hol0"
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat lim /* Load EM trap ignore mask */
leaving
lde ".ignmask"
pat sim /* Store EM trap ignore mask */
leaving
ste ".ignmask"
pat trp /* Raise EM trap */
with GPR3
gen
bl {LABEL, ".trap"}
pat sig /* Set trap handler */
leaving
ste ".trppc"
pat rtt /* Return from trap */
leaving
ret 0
pat lxl $1==0 /* Load FP */
leaving
lor 0
pat lxl $1==1 /* Load caller's FP */
leaving
lxl 0
dch
pat dch /* FP -> caller FP */
with GPR
uses reusing %1, REG
gen
lwz %a, {GPRINDIRECT, %1, FP_OFFSET}
yields %a
pat lpb /* Convert FP to argument address */
leaving
adp EM_BSIZE
pat lxa /* Load caller's SP */
leaving
lxl $1
lpb
pat gto /* longjmp */
uses REG
gen
move {LABEL, $1}, %a
move {IND_RC_W, %a, 8}, FP
move {IND_RC_W, %a, 4}, SP
move {IND_RC_W, %a, 0}, %a
mtspr CTR, %a
bcctr ALWAYS, {CONST, 0}, {CONST, 0}
pat lor $1==0 /* Load FP */
uses REG
gen
move FP, %a
yields %a
pat lor $1==1 /* Load SP */
uses REG
gen
move SP, %a
yields %a
pat lor $1==2 /* Load HP */
leaving
loe ".reghp"
pat str $1==0 /* Store FP */
with GPR
gen
move %1, FP
pat str $1==1 /* Store SP */
with GPR
gen
move %1, SP
pat str $1==2 /* Store HP */
leaving
ste ".reghp"
For "pat ass", move fake stack to real stack before adjusting SP. This fixes code that tried to "addi SP, SP, 4" to drop a value that was in a register, not on the real stack. Add a rule to optimize "asp 4" (which becomes "loc 4" "ass") when the value being dropped is already in a GPR.
2016-09-28 04:13:35 +00:00
pat loc ass $1==4 /* Drop 4 bytes from stack */
with exact GPR
/* nop */
with STACK
gen
addi SP, SP, {CONST, 4}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat ass /* Adjust stack by variable amount */
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST2 STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
move {SUM_RC, SP, %1.val}, SP
Refactor how powerpc ncg pushes constants. When loc (load constant) pushes a constant, it now checks the value of the constant and pushes any of 7 tokens. These tokens allow stack patterns to recognize 16-bit signed integers (CONST2), 16-bit unsigned integers (UCONST2), multiples of 0x10000 (CONST_HZ), and other interesting forms of constants. Use the new constant tokens in the rules for adi, sbi, and, ior, xor. Adjust a few other rules to understand the new tokens. Require that SUM_RC has a signed 16-bit constant, and OR_RC and XOR_RC each have an unsigned 16-bit constant. The moves from SUM_RC, OR_RC, XOR_RC to GPR no longer touch the scratch register, because the constant is not too big.
2016-10-16 17:58:54 +00:00
with CONST_HZ STACK
gen
move {SUM_RC, SP, his(%1.val)}, SP
with CONST_ALL-CONST2-CONST_HZ STACK
gen
move {SUM_RC, SP, his(%1.val)}, SP
move {SUM_RC, SP, los(%1.val)}, SP
For "pat ass", move fake stack to real stack before adjusting SP. This fixes code that tried to "addi SP, SP, 4" to drop a value that was in a register, not on the real stack. Add a rule to optimize "asp 4" (which becomes "loc 4" "ass") when the value being dropped is already in a GPR.
2016-09-28 04:13:35 +00:00
with GPR STACK
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Remove most of GPRE from mach/powerpc/ncg/table We only need GPRE in a few places where we write {GPRE, regvar(...)} because ncgg can't parse plain regvar(...). In all other places, a plain GPR works. Also remove gpr_gpr_gpr and a few other unused and fake instructions from the list of instructions.
2016-10-07 02:59:27 +00:00
move {SUM_RR, SP, %1}, SP
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat asp /* Adjust stack by constant amount */
leaving
loc $1
ass
/* Floating point support */
/* All very cheap and nasty --- this needs to be properly integrated into
* the code generator. ncg doesn't like having separate FPU registers. */
Check in incomplete Linux PowerPC and M68K work. --HG-- branch : dtrg-experimental-powerpc
2013-05-07 23:48:48 +00:00
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
/* Single-precision */
pat zrf $1==INT32 /* Push zero */
leaving
loe ".fs_00000000"
pat adf $1==INT32 /* Add single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG FSREG
uses reusing %1, FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fadds %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat sbf $1==INT32 /* Subtract single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG FSREG
uses reusing %1, FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fsubs %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat mlf $1==INT32 /* Multiply single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG FSREG
uses reusing %1, FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fmuls %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat dvf $1==INT32 /* Divide single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG FSREG
uses reusing %1, FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fdivs %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat ngf $1==INT32 /* Negate single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG
uses reusing %1, FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fneg %a, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat cmf $1==INT32 /* Compare single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG FSREG
yields {TRISTATE_FF, %2.1, %1.1}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat loc loc cff $1==INT32 && $2==INT64 /* Convert single to double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FSREG
yields %1.1
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat loc loc cfu $1==INT32 && $2==INT32 /* Convert single to unsigned int */
with STACK
gen
bl {LABEL, ".cfu4"}
pat loc loc cfi $1==INT32 && $2==INT32 /* Convert single to signed int */
with STACK
gen
bl {LABEL, ".cfi4"}
pat loc loc cif $1==INT32 && $2==INT32 /* Convert integer to single */
with STACK
gen
bl {LABEL, ".cif4"}
pat loc loc cuf $1==INT32 && $2==INT32 /* Convert unsigned int to single */
with STACK
gen
bl {LABEL, ".cuf4"}
pat fef $1==INT32 /* Split single */
with STACK
gen
bl {LABEL, ".fef4"}
/* Double-precision */
pat zrf $1==INT64 /* Push zero */
leaving
lde ".fd_00000000"
pat adf $1==INT64 /* Add double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG FREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fadd %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat sbf $1==INT64 /* Subtract double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG FREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fsub %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat mlf $1==INT64 /* Multiply double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG FREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %1, FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fmul %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat dvf $1==INT64 /* Divide double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG FREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %1, FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fdiv %a, %2, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat ngf $1==INT64 /* Negate double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
uses reusing %1, FREG
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
fneg %a, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat cmf $1==INT64 /* Compare double */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG FREG
yields {TRISTATE_FF, %2, %1}
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat loc loc cff $1==INT64 && $2==INT32 /* Convert double to single */
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
with FREG
uses reusing %1, FSREG
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Enable the Hall check again, and get powerpc to pass it. Upon enabling the check, mach/powerpc/ncg/table fails to build as ncgg gives many errors of "Previous rule impossible on empty stack". David Given reported this problem in 2013: https://sourceforge.net/p/tack/mailman/message/30814694/ Commit c93cb69 commented out the error in util/ncgg/cgg.y to disable the Hall check. This commit enables it again. In ncgg, the Hall check is checking that a rule is possible with an empty fake stack. It would be possible if ncg can coerce the values from the real stack to the fake stack. The powerpc table defined coercions from STACK to {FS, %a} and {FD, %a}, but the Hall check didn't understand the coercions and rejected each rule "with FS" or "with FD". This commit removes the FS and FD tokens and adds a new group of FSREG registers for single-precision floats, while keeping FREG registers for double precision. The registers overlap, with each FSREG containing one FREG, because it is the same register in PowerPC hardware. FS tokens become FSREG registers and FD tokens become FREG registers. The Hall check understands the coercions from STACK to FSREG and FREG. The idea to define separate but overlapping registers comes from the PDP-11 table (mach/pdp/ncg/table). This commit also removes F0 from the FREG group. This is my attempt to keep F0 off the fake stack, because one of the stacking rules uses F0 as a scratch register (FSCRATCH).
2016-09-18 19:08:55 +00:00
frsp %a, %1
yields %a
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat loc loc cfu $1==INT64 && $2==INT32 /* Convert double to unsigned int */
with STACK
gen
bl {LABEL, ".cfu8"}
pat loc loc cfi $1==INT64 && $2==INT32 /* Convert double to signed int */
with STACK
gen
bl {LABEL, ".cfi8"}
pat loc loc cif $1==INT32 && $2==INT64 /* Convert integer to double */
with STACK
kills ALL
gen
bl {LABEL, ".cif8"}
pat loc loc cuf $1==INT32 && $2==INT64 /* Convert unsigned int to double */
with STACK
gen
bl {LABEL, ".cuf8"}
pat fef $1==INT64 /* Split double */
Rewrite fef 8 in powerpc assembly. In EM, fef splits a float into exponent and fraction. The old C code, given an infinite float, got stuck in an infinite loop. The new assembly code doesn't loop; it extracts the IEEE exponent.
2016-09-29 19:52:54 +00:00
with GPR3 GPR4
kills FPR0, FPR1, GPR6, GPR7
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
gen
Rewrite fef 8 in powerpc assembly. In EM, fef splits a float into exponent and fraction. The old C code, given an infinite float, got stuck in an infinite loop. The new assembly code doesn't loop; it extracts the IEEE exponent.
2016-09-29 19:52:54 +00:00
bl {LABEL, ".fef8"}
yields R4 R3 R5
Archival checkin (semi-working code).
2007-11-02 18:56:58 +00:00
pat fif $1==INT64 /* Multiply and split double (?) */
with STACK
gen
bl {LABEL, ".fif8"}
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