ack/mach/i386/ncg/table

/*
 * (c) copyright 1989 by the Vrije Universiteit, Amsterdam, The Netherlands.
 * See the copyright notice in the ACK home directory, in the file "Copyright".
 */

rscid = "$Header$"

/*
 * Back end tables for Intel 80386
 *
 * Author : Ceriel J.H. Jacobs
 *
 * Partly adapted from Intel 8086 table
 *
 * wordsize = 4 bytes, pointersize = 4 bytes.
 *
 * Register ebp is used as LB, esp is used for SP.
 * Some global variables are used:
 * - .reghp	: the heap pointer
 * - .ignmask	: trap ignore mask
 * - .trppc	: address of user defined trap handler
 *
 */

#define WS 4
#define PS 4

SL = 8
SSL = "8"

EM_WSIZE = WS
EM_PSIZE = PS
EM_BSIZE = 8

SIZEFACTOR = 5/1

#define REGVARS

#define EXACT exact	/* to improve code but slow down code generator,
			   define it to nothing
			*/

/*****************************************************************/
PROPERTIES
/*****************************************************************/

REG1			/* general 1 byte register */
REG2			/* general 2 byte register */
ACC1			/* 1 byte accumulator */
ACC2			/* 2 byte accumulator */
REG			/* allocatable register */
GENREG			/* register with sub-registers */
ACC			/* accumulator */
SHIFT_CREG		/* shift count register */
BXREG			/* ebx register */
AREG			/* address register */
ADDREG			/* allocatable address register */
CXREG			/* ecx register */
DXREG			/* edx register */
IREG			/* index register */
RREG			/* register variable, or register without subregs */

/*****************************************************************/
REGISTERS
/*****************************************************************/

al				    : REG1 , ACC1 .
ah,bl, bh, ch,dl,dh		    : REG1 .
cl				    : REG1 , SHIFT_CREG .
ax = al + ah			    : REG2 , ACC2 .
bx = bl + bh			    : REG2 .
cx = cl + ch			    : REG2 .
dx = dl + dh			    : REG2 .
eax = al + ah			    : REG, GENREG, IREG, ACC, ADDREG, AREG.
ebx = bl + bh			    : REG, GENREG, IREG, BXREG, ADDREG, AREG.
ecx = cl + ch			    : REG, GENREG, IREG, CXREG, SHIFT_CREG, ADDREG , AREG .
edx = dl + dh			    : REG, GENREG, IREG, DXREG, ADDREG, AREG .
#ifndef REGVARS
esi				    : REG, RREG, IREG, AREG, ADDREG .
edi				    : REG, RREG, IREG, AREG, ADDREG .
#else
esi				    : AREG , IREG , RREG regvar(reg_any) .
edi				    : AREG , IREG , RREG regvar(reg_any) .
#endif
ebp				    : AREG , IREG .
esp				    : AREG .

/*****************************************************************/
TOKENS
/*****************************************************************/

ANYCON		= { INT val; }	    4 cost(4,0) val .
CONSTR		= { ADDR off; }	    4 cost(4,0) off .
ADDR_EXTERN	= { ADDR off; }	    4 cost(4,0) off .
EXTERN1		= { ADDR off; }	    4 cost(4,5) "(" off ")" .
EXTERN2		= { ADDR off; }	    4 cost(4,5) "(" off ")" .
EXTERN		= { ADDR off; }	    4 cost(4,5) "(" off ")" .
ADDR_LOCAL	= { INT ind; }	    4 cost(1,0) ind "(ebp)" .
LOCAL		= { INT ind; INT size; } 4 cost(1,5) ind "(ebp)" .
LOCAL1		= { INT ind; INT size; } 4 cost(1,5) ind "(ebp)" .
LOCAL2		= { INT ind; INT size; } 4 cost(1,5) ind "(ebp)" .

Rreg_off	= { AREG reg; ADDR off;} 4 cost(4,0) off "(" reg ")" .
Xreg_off	= { AREG reg; ADDR off;} 4 cost(4,0) off "(" reg ")" .
indexed_r_off	= { AREG reg; IREG reg2; INT scale; ADDR off;}
			4 cost(5,0) off "(" reg ")" "(" reg2 "*" scale ")" .
indexed_off	= { IREG reg; INT scale; ADDR off;}
			4 cost(5,0) off "(" reg "*" scale ")" .

indir_r		= { AREG reg;} 4 cost(0,5) "(" reg ")" .
indir_r1	= { AREG reg;} 4 cost(0,5) "(" reg ")" .
indir_r2	= { AREG reg;} 4 cost(0,5) "(" reg ")" .
indir_r_off	= { AREG reg; ADDR off;} 4 cost(4,5) off "(" reg ")" .
indir_r_off1	= { AREG reg; ADDR off;} 4 cost(4,5) off "(" reg ")" .
indir_r_off2	= { AREG reg; ADDR off;} 4 cost(4,5) off "(" reg ")" .

indir_indexed_r_off =
		  { AREG reg; IREG reg2; INT scale; ADDR off;}
			4 cost(5,5) off "(" reg ")" "(" reg2 "*" scale ")" .
indir_indexed_r_off1 =
		  { AREG reg; IREG reg2; INT scale; ADDR off;}
			4 cost(5,5) off "(" reg ")" "(" reg2 "*" scale ")" .
indir_indexed_r_off2 =
		  { AREG reg; IREG reg2; INT scale; ADDR off;}
			4 cost(5,5) off "(" reg ")" "(" reg2 "*" scale ")" .
indir_indexed_off =
		  { IREG reg; INT scale; ADDR off;}
			4 cost(5,5) off "(" reg "*" scale ")" .
indir_indexed_off1 =
		  { IREG reg; INT scale; ADDR off;}
			4 cost(5,5) off "(" reg "*" scale ")" .
indir_indexed_off2 =
		  { IREG reg; INT scale; ADDR off;}
			4 cost(5,5) off "(" reg "*" scale ")" .

label		= { ADDR off;} 4 off .

/*****************************************************************/
SETS
/*****************************************************************/

/* Mode refering to a word in memory */
memory2		= EXTERN2 + indir_r2 + indir_r_off2 + LOCAL2 +
		  indir_indexed_r_off2 + indir_indexed_off2 .
memory1		= EXTERN1 + indir_r1 + indir_r_off1 + LOCAL1 +
		  indir_indexed_r_off1 + indir_indexed_off1 .
memory		= EXTERN + indir_r + indir_r_off + LOCAL +
		  indir_indexed_r_off + indir_indexed_off .
noacc		= EXTERN + LOCAL + BXREG + CXREG + RREG .
const		= ANYCON + ADDR_EXTERN + CONSTR .
register	= REG + ADDREG + RREG + IREG .
addreg		= ADDREG + RREG .
anyreg		= register + AREG .
rm		= anyreg + memory .
rmorconst	= const + rm .
regorconst	= const + anyreg .
dest		= register + memory .

rm1		= REG1 + memory1 .
rmorconst1	= const + rm1 .
rm2		= REG2 + memory2 .
rmorconst2	= const + rm2 .
regorconst124	= REG1 + REG2 + GENREG + const .
regorconst24	= REG2 + GENREG + const .
dest1		= REG1 + memory1 .
dest2		= REG2 + memory2 .

/* Modes used to indicate tokens to be removed from the fakestack */
reg_indir	= indir_r1 + indir_r2 + indir_r_off1 + indir_r_off2 + indir_r +
		  indir_r_off .
indexed		= indir_indexed_r_off1 + indir_indexed_r_off2 +
		  indir_indexed_r_off + indir_indexed_off1 +
		  indir_indexed_off2 + indir_indexed_off .
indir		= reg_indir + indexed .
externals	= EXTERN2 + EXTERN1 + EXTERN .
locals		= LOCAL2 + LOCAL1 + LOCAL .
mem_nonlocals	= externals + reg_indir .
all_mems	= mem_nonlocals + locals .

/* Miscellaneous */
reg_off		= Xreg_off + Rreg_off .
halfindir	= reg_off + ADDR_LOCAL + indexed_r_off + indexed_off .
some_off	= halfindir + ADDR_EXTERN + AREG .
a_word		= rmorconst + halfindir .

/*****************************************************************/
INSTRUCTIONS
/*****************************************************************/

cost(2,2)
adc rm:rw:cc, regorconst:ro.
adc anyreg:rw:cc, rmorconst:ro.
#ifdef REGVARS
add LOCAL:rw:cc, rmorconst:ro.	/* only for register variables; UNSAFE !!! */
#endif
add anyreg:rw:cc, rmorconst:ro.
add rm:rw:cc, regorconst:ro.
#ifdef REGVARS
axx "syntax error" LOCAL:rw:cc, rmorconst:ro.	/* only for register variables; UNSAFE !!! */
#endif
axx "syntax error" anyreg:rw:cc, rmorconst:ro.
axx "syntax error" rm:rw:cc, regorconst:ro.
#ifdef REGVARS
and LOCAL:rw:cc, rmorconst:ro.	/* only for register variables; UNSAFE !!! */
#endif
and rm:rw:cc, regorconst:ro.
and anyreg:rw:cc, rmorconst:ro.
cdq kills edx cost(1,3).
cmp rm:ro, regorconst:ro kills :cc.
cmp anyreg:ro, rmorconst:ro kills :cc.
cmpb rm1:rw, const:ro kills :cc.
cmpw "o16 cmp" rm2:rw, const:ro kills :cc cost(3,2).
dec anyreg:rw:cc cost(1,2).
dec rm:rw:cc.
div rm:ro kills:cc eax edx cost(2,43).
idiv rm:ro kills:cc eax edx cost(2,43).
imul rm:rw, anyreg:ro kills:cc cost(3,41).
imul anyreg:rw, rm:ro kills:cc cost(3,41).
imul anyreg:wo, rm:ro, const:ro kills :cc cost(2,38).
inc anyreg:rw:cc cost(1,2).
inc rm:rw:cc.
ja label cost(1,4).
jae label cost(1,4).
jb label cost(1,4).
jbe label cost(1,4).
jcxz label cost(1,4).
je label cost(1,4).
jg label cost(1,4).
jge label cost(1,4).
jl label cost(1,4).
jle label cost(1,4).
jne label cost(1,4).
jmp label cost(1,4).
proccall "call" label+rm cost(1,8).
jxx "syntax error" label cost(1,4).
lea anyreg:rw, halfindir:ro.
lea LOCAL:rw, halfindir:ro.	/* only for register variables, UNSAFE!!! */
leave cost(1,4).
loop label kills ecx.
#ifdef REGVARS
mov LOCAL:wo, rmorconst:ro.	/* only for register variables, UNSAFE!!! */
#endif
mov a_word:wo, regorconst:ro.
mov anyreg:wo, rmorconst:ro.
movb rm1:wo, regorconst124:ro.
movb REG1:wo, rm1:ro.
movw "o16 mov" rm2:wo, regorconst124:ro cost(3,2).
movw "o16 mov" REG2:wo, rmorconst2:ro cost(3,2).
movsxb anyreg:wo, REG+rm1:ro.
movsx anyreg:wo, REG+rm2:ro.
movzxb anyreg:wo, REG+rm1:ro.
movzx anyreg:wo, REG+rm2:ro.
mul rmorconst:ro kills :cc eax edx cost(2,41).
neg rmorconst:rw:cc.
not rmorconst:rw.
ORB "orb" REG1:ro, REG1:ro:cc.		/* use ORB for tests */
ORW "o16 or" REG2:ro, REG2:ro:cc.	/* use ORW for tests */
OR "or" anyreg:ro, anyreg:ro:cc.	/* Use OR for tests */
#ifdef REGVARS
or LOCAL:rw:cc, rmorconst:ro.	/* only for register variables; UNSAFE !!! */
#endif
or rm:rw:cc, regorconst:ro.
or anyreg:rw:cc, rmorconst:ro.
pop anyreg:wo cost(1,4).
pop rm:wo.
push anyreg:ro cost(1,2).
push const:ro cost(1,2).
push rm:ro cost(2,5).
rcl rm:rw:cc, ANYCON+SHIFT_CREG:ro cost(2,10).
rcr rm:rw:cc, ANYCON+SHIFT_CREG:ro cost(2,10).
ret cost(1,10).
rol rm:rw:cc, ANYCON+SHIFT_CREG:ro.
ror rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sal rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sar rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sbb rm:rw:cc, regorconst:ro.
sbb anyreg:rw:cc, rmorconst:ro.
shl rm:rw:cc, ANYCON+SHIFT_CREG:ro.
shr rm:rw:cc, ANYCON+SHIFT_CREG:ro.
sxx rm:rw:cc, ANYCON+SHIFT_CREG:ro.
#ifdef REGVARS
sub LOCAL:rw:cc, rmorconst:ro.	/* only for register variables; UNSAFE !!! */
#endif
sub rm:rw:cc, regorconst:ro.
sub anyreg:rw:cc, rmorconst+halfindir:ro.
check "test" rm:ro, regorconst:ro kills :cc.
check "test" anyreg:ro, rmorconst:ro kills :cc.
testb "testb" rm1:ro, regorconst:ro kills :cc.
testb "testb" REG1:ro, rmorconst:ro kills :cc.
testw "o16 test" rm2:ro, regorconst:ro kills :cc.
testw "o16 test" REG2:ro, rmorconst:ro kills :cc.
uxx "syntax error"  rm:rw:cc.
xchg rm:rw, anyreg:rw.
xchg anyreg:rw, rm:rw.
xor rm:rw:cc, regorconst:ro.
xor anyreg:rw:cc, rmorconst:ro.
xorb rm1:rw:cc, regorconst124:ro.
xorb anyreg:rw:cc, rmorconst1:ro.
xorw "o16 xor" rm2:rw:cc, regorconst124:ro.
xorw "o16 xor" anyreg:rw:cc, rmorconst2:ro.

killreg "! kill" anyreg:wo cost(0,0).


/*****************************************************************/
MOVES
/*****************************************************************/

#ifdef REGVARS
from rmorconst to LOCAL		/* unsafe !!! */
gen mov %2,%1
#endif

from rm to register
gen mov %2,%1

from anyreg to dest
gen mov %2,%1

from halfindir to register+AREG
gen lea %2,%1

from halfindir to LOCAL		/* unsafe !!! */
gen lea %2,%1

from rm1 to REG1
gen movb %2,%1

from rm2 to REG2
gen movw %2,%1

from GENREG to rm1
gen movb %2,%1.1

from GENREG to rm2
gen movw %2,%1

from REG2 to rm1
gen movb %2,%1.1

from ANYCON %val==0 to register
gen xor %2,%2

from ANYCON %val==0 to REG1
gen xorb %2,%2

from ANYCON %val==0 to REG2
gen xorw %2,%2

from const to dest
gen mov %2,%1

from const+REG1 to rm1
gen movb %2,%1

from const+REG2 to rm2
gen movw %2,%1

/*****************************************************************/
TESTS
/*****************************************************************/

to test anyreg
gen OR %1,%1

to test memory
gen cmp %1, {ANYCON,0}

to test REG1
gen ORB %1,%1

to test memory1
gen cmpb %1, {ANYCON,0}

to test REG2
gen ORW %1,%1

to test memory2
gen cmpw %1, {ANYCON,0}


/*****************************************************************/
STACKINGRULES
/*****************************************************************/

from rm to STACK
  gen push %1

from const to STACK
  gen push %1

from rm1 to STACK
  uses REG
  gen movzxb %a,%1
      push %a

from rm1 to STACK
  gen push eax
      movzxb eax,%1
      xchg {indir_r,esp},eax

from rm2 to STACK
  uses REG
  gen movzx %a,%1
      push %a

from rm2 to STACK
  gen push eax
      movzx eax,%1
      xchg {indir_r,esp},eax

from Xreg_off to STACK
  gen add %1.reg,{CONSTR,%1.off}
      push %1.reg

from ADDR_LOCAL %ind==0 to STACK
  gen push ebp

from halfindir to STACK
  uses REG
  gen move %1,%a
      push %a

from halfindir to STACK
  gen push eax
      lea eax,%1
      xchg {indir_r,esp},eax


/*****************************************************************/
COERCIONS
/*****************************************************************/

/***************************
 * From source to register *
 ***************************/

from rmorconst
  uses reusing %1,REG=%1		yields %a
from rmorconst
  uses reusing %1,IREG=%1		yields %a

from Xreg_off
  gen add %1.reg,{CONSTR,%1.off}	yields %1.reg

from halfindir
  uses reusing %1,ADDREG
  gen move %1,%a			yields %a

from halfindir
  uses reusing %1,REG
  gen move %1,%a			yields %a

from halfindir
  uses reusing %1,IREG
  gen move %1,%a			yields %a

/************************
 * From source to token *
 ************************/

from ANYCON				yields {ADDR_EXTERN,%1.val}

/****************
 * From source1 *
 ****************/

from rm1
  uses reusing %1,REG1=%1		yields %a

from rm1
  uses GENREG
  gen
      movzxb %a,%1			yields %a

/****************
 * From source2 *
 ****************/

from rm2
  uses reusing %1,REG2=%1		yields %a

from rm2
  uses GENREG
  gen
      movzx %a,%1			yields %a

/************************
 * From STACK coercions *
 ************************/

from STACK
  uses REG
  gen pop %a				yields %a


/*****************************************************************/
PATTERNS
/*****************************************************************/

/******************************************************************
 *  Group 1 : Load Instructions					  *
 ******************************************************************/

pat loc					yields {ANYCON,$1}

pat ldc					leaving loc 18 trp

pat lol					yields {LOCAL,$1,4}

pat stl lol $1==$2
#ifdef REGVARS
	&& inreg($1) <= 0
#endif
						leaving dup 4 stl $1

pat sdl ldl $1==$2				leaving dup 8 sdl $1

pat lol lol $1==$2
#ifdef REGVARS
	    && inreg($1) <= 0
#endif
						leaving lol $1 dup 4

#ifdef REGVARS
pat lol lol stl $1==$2 && inreg($1) <= 0 && inreg($3) > 0
kills regvar($3)
gen	move {LOCAL,$1,4}, {LOCAL,$3,4}
					yields {LOCAL,$3,4}
#endif

pat loe					yields {EXTERN,$1}

pat ste loe $1==$2				leaving dup 4 ste $1

pat sde lde $1==$2				leaving dup 8 sde $1

pat loe loe $1==$2				leaving loe $1 dup 4

#ifdef REGVARS
pat loe loe stl $1==$2 && inreg($3) > 0
kills regvar($3)
gen	move {EXTERN,$1}, {LOCAL,$3,4}
					yields {LOCAL,$3,4}
#endif

#ifdef REGVARS
pat lil inreg($1) > 0			yields {indir_r, regvar($1)}
#endif
pat lil
  uses ADDREG={indir_r_off,ebp,$1}	yields {indir_r,%a}

pat lil lil $1==$2				leaving lil $1 dup 4

pat lil lil stl $1==$2				leaving lil $1 stl $3 lol $3

pat sil lil $1==$2				leaving dup 4 sil $1

pat lof
  with exact indexed_r_off	yields {indir_indexed_r_off,%1.reg,%1.reg2,
						%1.scale,%1.off+$1}
  with exact indexed_off	yields {indir_indexed_off,%1.reg,
						%1.scale,%1.off+$1}
  with exact reg_off		yields {indir_r_off,%1.reg,%1.off+$1}
  with exact ADDR_EXTERN	yields {EXTERN,%1.off+$1}
  with exact ADDR_LOCAL		yields {LOCAL,%1.ind + $1,4}
  with addreg			yields {indir_r_off,%1,$1}

pat lal					yields {ADDR_LOCAL,$1}

pat lae					yields {ADDR_EXTERN,$1}

pat lpb						leaving adp SL

pat lxl $1==0				yields {ADDR_LOCAL,0}

pat lxl $1==1				yields {LOCAL,SL,4}

pat lxl $1==2
  uses ADDREG={indir_r_off,ebp,SSL}	yields {indir_r_off,%a,SSL}

pat lxl $1>2
  uses ADDREG={indir_r_off,ebp,SSL},
       CXREG={ANYCON,$1-1}
  gen 1:
      mov %a,{indir_r_off,%a,SSL}
      loop {label,1b}			yields %a

pat lxa $1==0				yields {ADDR_LOCAL,SL}

pat lxa $1==1
  uses ADDREG={indir_r_off,ebp,SSL}	yields {Xreg_off,%a,SSL}

pat lxa $1==2
  uses ADDREG={indir_r_off,ebp,SSL}
  gen move {indir_r_off,%a,SSL},%a	yields {Xreg_off,%a,SSL}

pat lxa $1>2
  uses ADDREG={indir_r_off,ebp,SSL},
       CXREG={ANYCON,$1-1}
  gen 1:
      mov %a,{indir_r_off,%a,SSL}
      loop {label,1b}			yields {Xreg_off,%a,SSL}

pat dch						leaving loi 4

pat loi $1==2
  with addreg			yields {indir_r2,%1}
  with exact indexed_r_off	yields {indir_indexed_r_off2, %1.reg, %1.reg2,
						%1.scale, %1.off}
  with exact indexed_off	yields {indir_indexed_off2, %1.reg,
						%1.scale, %1.off}
  with exact reg_off		yields {indir_r_off2,%1.reg,%1.off}
  with exact ADDR_EXTERN	yields {EXTERN2,%1.off}
  with exact ADDR_LOCAL		yields {LOCAL2,%1.ind,2}

pat loi $1==1
  with addreg			yields {indir_r1,%1}
  with exact indexed_r_off	yields {indir_indexed_r_off1, %1.reg, %1.reg2,
						%1.scale, %1.off}
  with exact indexed_off	yields {indir_indexed_off1, %1.reg,
						%1.scale, %1.off}
  with exact reg_off		yields {indir_r_off1,%1.reg,%1.off}
  with exact ADDR_EXTERN	yields {EXTERN1,%1.off}
  with exact ADDR_LOCAL		yields {LOCAL1,%1.ind,1}

pat loi $1==4
  with addreg			yields {indir_r,%1}
  with exact indexed_r_off	yields {indir_indexed_r_off, %1.reg, %1.reg2,
						%1.scale, %1.off}
  with exact indexed_off	yields {indir_indexed_off, %1.reg,
						%1.scale, %1.off}
  with exact reg_off		yields {indir_r_off,%1.reg,%1.off}
  with exact ADDR_EXTERN	yields {EXTERN,%1.off}
  with exact ADDR_LOCAL		yields {LOCAL,%1.ind,4}

pat loi $1==8
  with addreg			yields {indir_r_off,%1,4}
				       {indir_r,%1}
  with exact indexed_r_off	yields {indir_indexed_r_off, %1.reg, %1.reg2,
						%1.scale, %1.off+4}
					{indir_indexed_r_off, %1.reg, %1.reg2,
						%1.scale, %1.off}
  with exact indexed_off	yields {indir_indexed_off, %1.reg,
						%1.scale, %1.off+4}
					{indir_indexed_off, %1.reg,
						%1.scale, %1.off}
  with exact reg_off		yields {indir_r_off,%1.reg,%1.off+4}
				       {indir_r_off,%1.reg,%1.off}
  with exact ADDR_LOCAL		yields {LOCAL,%1.ind+4,4}
				       {LOCAL,%1.ind,4}
  with exact ADDR_EXTERN	yields {EXTERN,%1.off + 4}
				       {EXTERN,%1.off}
pat loi
  with BXREG
  kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label,".loi"}

pat los $1==4
  with CXREG BXREG
  kills ALL
  gen proccall {label,".los"}

pat ldl					yields {LOCAL,$1+4,4}
					       {LOCAL,$1,4}

pat lde					yields {EXTERN,$1+4}
					       {EXTERN,$1}

pat ldf
  with exact reg_off			yields {indir_r_off,%1.reg,
						%1.off + 4 + $1}
					       {indir_r_off,%1.reg,
						%1.off + $1}
  with exact indexed_r_off	yields {indir_indexed_r_off, %1.reg, %1.reg2,
						%1.scale, %1.off+$1+4}
					{indir_indexed_r_off, %1.reg, %1.reg2,
						%1.scale, %1.off+$1}
  with exact indexed_off	yields {indir_indexed_off, %1.reg,
						%1.scale, %1.off+$1+4}
					{indir_indexed_off, %1.reg,
						%1.scale, %1.off+$1}
  with addreg				yields {indir_r_off,%1,$1+4}
					       {indir_r_off,%1,$1}
  with exact ADDR_EXTERN	yields {EXTERN,%1.off+4+$1}
				       {EXTERN,%1.off+$1}
  with exact ADDR_LOCAL		yields {LOCAL,%1.ind + $1 + 4,4}
				       {LOCAL,%1.ind + $1,4}

pat lpi				yields {ADDR_EXTERN,$1}

/* this code sequence is generated by the C-compiler to tackle
   char parameters, on the 80386 it reduces to nil */

pat lol lal sti $1==$2 && $3<=4

/*******************************************************************
 *  Group 2 : Store Instructions				   *
 *******************************************************************/

#ifdef REGVARS
pat stl inreg($1)==reg_any
  with rmorconst
  kills regvar($1)
  gen move %1, {LOCAL,$1,4}
  with exact halfindir
  kills regvar($1)
  gen move %1, {LOCAL,$1,4}
  with exact STACK
  kills regvar($1)
  gen pop {LOCAL, $1, 4}
#endif
pat stl
  with regorconst
  kills indir,locals %ind+%size > $1 && %ind < $1+4
  gen move %1,{LOCAL,$1,4}
  with exact STACK
  kills ALL
  gen pop {indir_r_off,ebp,$1}

pat ste
  with regorconst
  kills mem_nonlocals
  gen move %1,{EXTERN,$1}
  with exact STACK
  kills ALL
  gen pop {EXTERN,$1}

#ifdef REGVARS
pat sil inreg($1)==reg_any
  with regorconst
  kills all_mems
  gen move %1,{indir_r,regvar($1)}
  with exact STACK
  kills ALL
  gen pop {indir_r,regvar($1)}
#endif
pat sil
  with regorconst
  kills all_mems
  uses ADDREG={indir_r_off,ebp,$1}
  gen move %1,{indir_r,%a}
      killreg %a
  with exact STACK
  kills ALL
  uses ADDREG={indir_r_off,ebp,$1}
  gen pop {indir_r,%a}
      killreg %a

pat stf
  with addreg regorconst
  kills all_mems
  gen move %2,{indir_r_off,%1,$1}
  with exact addreg STACK
  kills ALL
  gen pop {indir_r_off, %1,$1}
  with reg_off regorconst
  kills all_mems
  gen move %2,{indir_r_off,%1.reg,%1.off+$1}
  with exact reg_off STACK
  gen pop {indir_r_off,%1.reg,$1+%1.off}
  with indexed_r_off regorconst
  kills all_mems
  gen move %2,{indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
  with exact indexed_r_off STACK
  kills all_mems
  gen pop {indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
  with indexed_off regorconst
  kills all_mems
  gen move %2,{indir_indexed_off,%1.reg,%1.scale,%1.off+$1}
  with exact indexed_off STACK
  kills all_mems
  gen pop {indir_indexed_off,%1.reg,%1.scale,%1.off+$1}
  with ADDR_LOCAL regorconst
  kills indir,locals %ind+%size > %1.ind+$1 && %ind < %1.ind+$1+4
  gen move %2,{LOCAL,%1.ind+$1,4}
  with exact ADDR_LOCAL STACK
  kills indir,locals %ind+%size > %1.ind+$1 && %ind < %1.ind+$1+4
  gen pop {LOCAL,%1.ind+$1,4}
  with ADDR_EXTERN regorconst
  kills mem_nonlocals
  gen move %2,{EXTERN,%1.off+$1}
  with exact ADDR_EXTERN STACK
  kills mem_nonlocals
  gen pop {EXTERN,%1.off+$1}

pat sti $1==4
  with addreg regorconst
  kills all_mems
  gen move %2,{indir_r,%1}
  with exact addreg STACK
  kills all_mems
  gen pop {indir_r,%1}
  with reg_off regorconst
  kills all_mems
  gen move %2,{indir_r_off,%1.reg,%1.off}
  with exact reg_off STACK
  kills all_mems
  gen pop {indir_r_off,%1.reg,%1.off}
  with indexed_r_off regorconst
  kills all_mems
  gen move %2,{indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off}
  with exact indexed_r_off STACK
  kills all_mems
  gen pop {indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off}
  with indexed_off regorconst
  kills all_mems
  gen move %2,{indir_indexed_off,%1.reg,%1.scale,%1.off}
  with exact indexed_off STACK
  kills all_mems
  gen pop {indir_indexed_off,%1.reg,%1.scale,%1.off}
  with ADDR_LOCAL regorconst
  kills indir,locals %ind+%size > %1.ind && %ind < %1.ind+4
  gen move %2,{LOCAL,%1.ind,4}
  with exact ADDR_LOCAL STACK
  kills indir,locals %ind+%size > %1.ind && %ind < %1.ind+4
  gen pop {LOCAL,%1.ind,4}
  with ADDR_EXTERN regorconst
  kills mem_nonlocals
  gen move %2,{EXTERN,%1.off}
  with exact ADDR_EXTERN STACK
  kills mem_nonlocals
  gen pop {EXTERN,%1.off}

pat sti $1==1
  with addreg regorconst124
  kills all_mems
  gen move %2,{indir_r1,%1}
  with reg_off regorconst124
  kills all_mems
  gen move %2,{indir_r_off1,%1.reg,%1.off}
  with indexed_r_off regorconst124
  kills all_mems
  gen move %2,{indir_indexed_r_off1,%1.reg,%1.reg2,%1.scale,%1.off}
  with indexed_off regorconst124
  kills all_mems
  gen move %2,{indir_indexed_off1,%1.reg,%1.scale,%1.off}
  with ADDR_EXTERN regorconst124
  kills mem_nonlocals
  gen move %2,{EXTERN1,%1.off}
  with ADDR_LOCAL regorconst124
  kills indir,locals %ind<%1.ind+1 && %ind+%size>%1.ind
  gen move %2,{indir_r_off1,ebp,%1.ind}

pat sti $1==2
  with addreg regorconst24
  kills all_mems
  gen move %2,{indir_r2,%1}
  with reg_off regorconst24
  kills all_mems
  gen move %2,{indir_r_off2,%1.reg,%1.off}
  with indexed_r_off regorconst24
  kills all_mems
  gen move %2,{indir_indexed_r_off2,%1.reg,%1.reg2,%1.scale,%1.off}
  with indexed_off regorconst24
  kills all_mems
  gen move %2,{indir_indexed_off2,%1.reg,%1.scale,%1.off}
  with ADDR_EXTERN regorconst24
  kills mem_nonlocals
  gen move %2,{EXTERN2,%1.off}
  with ADDR_LOCAL regorconst24
  kills indir,locals %ind<%1.ind+2 && %ind+%size>%1.ind
  gen move %2,{indir_r_off2,ebp,%1.ind}

pat sti $1==8			leaving sdf 0

pat sti
  with BXREG
  kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".sti"}

/* this sort of construction gives problems in the codegenerator
   because of the potential very large lookahead

  with addreg
  kills ALL
  gen pop (%1)
      add %1,{ANYCON,2}			yields %1	leaving sti $1-4

*/

pat sts $1==4
  with CXREG BXREG
  kills ALL
  gen proccall {label,".sts"}

pat sdl
  with regorconst regorconst	yields %2 %1
					leaving stl $1 stl $1+4
  with exact STACK			leaving stl $1 stl $1+4

pat sde
  with regorconst regorconst	yields %2 %1
					leaving ste $1 ste $1+4
  with exact STACK			leaving ste $1 ste $1+4

pat sdf
  with addreg regorconst regorconst
  kills all_mems
  gen move %2,{indir_r_off,%1,$1}
      move %3,{indir_r_off,%1,$1+4}
  with exact addreg STACK
  kills all_mems
  gen pop {indir_r_off,%1,$1}
      pop {indir_r_off,%1,$1+4}
  with reg_off regorconst regorconst
  kills all_mems
  gen move %2,{indir_r_off,%1.reg,%1.off+$1}
      move %3,{indir_r_off,%1.reg,%1.off+$1+4}
  with exact reg_off STACK
  kills all_mems
  gen pop {indir_r_off,%1.reg,$1+%1.off}
      pop {indir_r_off,%1.reg,$1+%1.off+4}
  with indexed_r_off regorconst regorconst
  kills all_mems
  gen move %2,{indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
      move %3,{indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+4+$1}
  with exact indexed_r_off STACK
  kills all_mems
  gen pop {indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
      pop {indir_indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+4+$1}
  with indexed_off regorconst regorconst
  kills all_mems
  gen move %2,{indir_indexed_off,%1.reg,%1.scale,%1.off+$1}
      move %3,{indir_indexed_off,%1.reg,%1.scale,%1.off+4+$1}
  with exact indexed_off STACK
  kills all_mems
  gen pop {indir_indexed_off,%1.reg,%1.scale,%1.off+$1}
      pop {indir_indexed_off,%1.reg,%1.scale,%1.off+4+$1}
  with ADDR_LOCAL regorconst regorconst
  kills indir,locals %ind+%size > $1 && %ind < $1+8
  gen	move %2,{LOCAL,%1.ind+$1,4}
	move %3,{LOCAL,%1.ind+$1+4,4}
  with exact ADDR_LOCAL STACK
  kills indir,locals %ind+%size > $1 && %ind < $1+8
  gen	pop {LOCAL,%1.ind+$1,4}
	pop {LOCAL,%1.ind+$1+4,4}
  with ADDR_EXTERN regorconst regorconst
  kills mem_nonlocals
  gen	move %2,{EXTERN,%1.off+$1}
	move %3,{EXTERN,%1.off+$1+4}
  with exact ADDR_EXTERN STACK
  kills mem_nonlocals
  gen	pop {EXTERN,%1.off+$1}
	pop {EXTERN,%1.off+$1+4}
  with halfindir regorconst
  kills all_mems
  gen mov %1,%2			yields %1	leaving stf $1+4


/****************************************************************
 *  Group 3 : Integer Arithmetic.				*
 *								*
 *  Implemented (sometimes with the use of subroutines) :	*
 *  4 byte arithmetic.						*
 ****************************************************************/

pat adi $1==4
#ifdef REGVARS
with exact ANYCON RREG
				yields {Rreg_off,%2,%1.val}
with exact RREG ANYCON
				yields {Rreg_off,%1,%2.val}
#endif
with REG rmorconst
  gen add %1,%2			yields %1
with rmorconst REG
  gen add %2,%1			yields %2
with EXACT rmorconst const
  uses reusing %1,REG=%1
  gen add %a,%2			yields %a

/*
pat adi !defined($1)
with CXREG ACC
  kills ALL
  gen proccall {label,".adi"}	yields eax
*/

pat sbi $1==4

with rmorconst REG
  gen sub %2,%1			yields %2
with EXACT REG rmorconst
  gen sub %1,%2
      neg %1			yields %1

/*
pat sbi !defined($1)
with CXREG ACC
  kills ALL
  gen proccall {label,".sbi"}	yields eax
*/

pat mli $1==4
with rm REG
  gen imul %2,%1		yields %2
with REG rm
  gen imul %1,%2		yields %1
with const rm
  uses reusing %2,REG
  gen imul %a,%2,%1		yields %a
with rm const
  uses reusing %1,REG
  gen imul %a,%1,%2		yields %a

/*
pat mli !defined($1)
with ACC
  kills ALL
  gen proccall {label,".mli"}
*/

pat dvi $1==4
with noacc ACC
  uses DXREG
  gen cdq.
      idiv %1			yields eax

/*
pat dvi !defined($1)
with ACC
  kills ALL
  gen proccall {label,".dvi"}
*/

pat rmi $1==4
with noacc ACC
  uses DXREG
  gen cdq.
      idiv %1			yields edx

/*
pat rmi !defined($1)
with ACC
  kills ALL
  gen proccall {label,".rmi"}
*/

pat ngi $1==4
with REG
  gen neg %1			yields %1

/*
pat ngi !defined($1)
with ACC
  kills ALL
  gen proccall {label,".ngi"}
*/

pat sli $1==4
with ANYCON REG
  gen sal %2,%1			yields %2
with SHIFT_CREG REG
  gen sal %2,cl			yields %2

/*
pat sli !defined($1)
with ACC
  kills ALL
  gen proccall {label,".sli"}
*/

pat sri $1==4
with SHIFT_CREG REG
  gen sar %2,cl			yields %2
with ANYCON REG
  gen sar %2,%1			yields %2

/*
pat sri !defined($1)
with ACC
  kills ALL
  gen proccall {label,".sri"}
*/

/*******************************************************************
 *  Group 4: Unsigned Arithmetic				   *
 *******************************************************************/

pat adu					leaving adi $1
pat loc lol adu stl $1==1 && $3==4 && $2==$4	leaving inl $2
pat loc loe adu ste $1==1 && $3==4 && $2==$4	leaving ine $2
pat loc lol adu $1==1 && $3==4		leaving lol $2 inc
pat loc loe adu $1==1 && $3==4		leaving loe $2 inc
pat loc lil adu $1==1 && $3==4		leaving lil $2 inc
pat loc lol adu stl $1==0-1 && $3==4 && $2==$4	leaving del $2
pat loc loe adu ste $1==0-1 && $3==4 && $2==$4	leaving dee $2
pat loc lol adu $1==0-1 && $3==4		leaving lol $2 dec
pat loc loe adu $1==0-1 && $3==4		leaving loe $2 dec
pat loc lil adu $1==0-1 && $3==4		leaving lil $2 dec
pat sbu					leaving sbi $1
pat lol loc sbu stl $1==$4 && $2==1 && $3==4	leaving del $1
pat loe loc sbu ste $1==$4 && $2==1 && $3==4	leaving dee $1
pat lol loc sbu $2==1 && $3==4		leaving lol $1 dec
pat loe loc sbu $2==1 && $3==4		leaving loe $1 dec
pat lil loc sbu $2==1 && $3==4		leaving lil $1 dec
pat lol loc sbu stl $1==$4 && $2==0-1 && $3==4	leaving inl $1
pat loe loc sbu ste $1==$4 && $2==0-1 && $3==4	leaving ine $1
pat lol loc sbu $2==0-1 && $3==4		leaving lol $1 inc
pat loe loc sbu $2==0-1 && $3==4		leaving loe $1 inc
pat lil loc sbu $2==0-1 && $3==4		leaving lil $1 inc
pat mlu					leaving mli $1

pat dvu $1==4
with noacc ACC
uses DXREG={ANYCON,0}
gen div %1			yields eax

/*
pat dvu !defined($1)
with ACC STACK
kills ALL
gen proccall {label,".dvu"}
*/

pat rmu $1==4
with noacc ACC
uses DXREG={ANYCON,0}
gen div %1			yields edx

/*
pat rmu !defined($1)
with ACC STACK
kills ALL
gen proccall {label,".rmu"}
*/

pat slu					leaving sli $1

pat sru $1==4
with SHIFT_CREG REG
gen shr %2,cl			yields %2
with ANYCON REG
gen shr %2,%1			yields %2

/*
pat sru !defined($1)
with ACC STACK
kills ALL
gen proccall {label,".sru"}
*/

/*******************************************************************
 *  Group 5: Floating Point Instructions			   *
 *******************************************************************/

pat adf $1==4		leaving cal ".adf4" asp 4
pat adf $1==8		leaving cal ".adf8" asp 8
pat sbf $1==4		leaving cal ".sbf4" asp 4
pat sbf $1==8		leaving cal ".sbf8" asp 8
pat mlf $1==4		leaving cal ".mlf4" asp 4
pat mlf $1==8		leaving cal ".mlf8" asp 8
pat dvf $1==4		leaving cal ".dvf4" asp 4
pat dvf $1==8		leaving cal ".dvf8" asp 8
pat ngf $1==4		leaving cal ".ngf4"
pat ngf $1==8		leaving cal ".ngf8"
pat fif $1==4		leaving lor 1 cal ".fif4" asp 4
pat fif $1==8		leaving lor 1 cal ".fif8" asp 4
pat fef $1==4		leaving lor 1 adp 0-4 cal ".fef4"
pat fef $1==8		leaving lor 1 adp 0-4 cal ".fef8"

/******************************************************************
 *  Group 6: Pointer Arithmetic					  *
 ******************************************************************/

pat adp $1==1
with exact Xreg_off	yields {Xreg_off,%1.reg,%1.off+$1}
with exact Rreg_off	yields {Rreg_off,%1.reg,%1.off+$1}
with exact indexed_r_off
			yields {indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
with exact indexed_off	yields {indexed_off,%1.reg,%1.scale,%1.off+$1}
with exact ADDR_EXTERN	yields {ADDR_EXTERN,%1.off+$1}
with exact ADDR_LOCAL	yields {ADDR_LOCAL,%1.ind+$1}
with REG
  gen inc %1		yields %1
with ADDREG
  gen killreg %1
			yields {Xreg_off, %1, $1}
with exact RREG		yields {Rreg_off, %1, $1}

pat adp $1==0-1
with exact Xreg_off	yields {Xreg_off,%1.reg,%1.off+$1}
with exact Rreg_off	yields {Rreg_off,%1.reg,%1.off+$1}
with exact indexed_r_off
			yields {indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
with exact indexed_off	yields {indexed_off,%1.reg,%1.scale,%1.off+$1}
with exact ADDR_EXTERN	yields {ADDR_EXTERN,%1.off+$1}
with exact ADDR_LOCAL	yields {ADDR_LOCAL,%1.ind+$1}
with REG
  gen dec %1		yields %1
with ADDREG
  gen killreg %1
			yields {Xreg_off, %1, $1}
with exact RREG		yields {Rreg_off, %1, $1}

pat adp
with exact Xreg_off	yields {Xreg_off,%1.reg,%1.off+$1}
with exact Rreg_off	yields {Rreg_off,%1.reg,%1.off+$1}
with exact indexed_r_off
			yields {indexed_r_off,%1.reg,%1.reg2,%1.scale,%1.off+$1}
with exact indexed_off	yields {indexed_off,%1.reg,%1.scale,%1.off+$1}
with exact ADDR_EXTERN	yields {ADDR_EXTERN,%1.off+$1}
with exact ADDR_LOCAL	yields {ADDR_LOCAL,%1.ind+$1}
with ADDREG
  gen killreg %1
			yields {Xreg_off,%1,$1}
with exact RREG		yields {Rreg_off, %1, $1}
with REG
  gen add %1,{ANYCON,$1}	yields %1

pat ads stl $1==4			leaving adi 4 stl $2
pat ads ste $1==4			leaving adi 4 ste $2
pat ads sil $1==4			leaving adi 4 sil $2
pat ads lol stf $1==4			leaving adi 4 lol $2 stf $3
pat ads loe stf $1==4			leaving adi 4 loe $2 stf $3

pat ads $1==4
with exact ANYCON Rreg_off
			yields {Rreg_off,%2.reg,%2.off+%1.val}
with exact ANYCON Xreg_off
			yields {Xreg_off,%2.reg,%2.off+%1.val}
with exact ANYCON indexed_r_off
			yields {indexed_r_off,%2.reg,%2.reg2,
					%2.scale,%2.off+%1.val}
with exact ANYCON indexed_off
			yields {indexed_off,%2.reg,%2.scale,%2.off+%1.val}
with exact ADDR_EXTERN Rreg_off
			yields {Rreg_off,%2.reg,%2.off+%1.off}
with exact ADDR_EXTERN Xreg_off
			yields {Xreg_off,%2.reg,%2.off+%1.off}
with exact ADDR_EXTERN indexed_r_off
			yields {indexed_r_off,%2.reg,%2.reg2,
					%2.scale,%2.off+%1.off}
with exact ADDR_EXTERN indexed_off
			yields {indexed_off,%2.reg,%2.scale,%2.off+%1.off}
with exact IREG reg_off
			yields {indexed_r_off,%2.reg,%1,1,%2.off}
with exact reg_off IREG
			yields {indexed_r_off,%1.reg,%2,1,%1.off}
with exact IREG ADDR_LOCAL
			yields {indexed_r_off,ebp,%1,1,%2.ind}
with exact ADDR_LOCAL IREG
			yields {indexed_r_off,ebp,%2,1,%1.ind}
with rmorconst Xreg_off
  gen add %2.reg,%1	yields %2
with Xreg_off rmorconst
  gen add %1.reg,%2	yields %1
with exact Xreg_off ANYCON
			yields {Xreg_off,%1.reg,%1.off+%2.val}
with exact Rreg_off ANYCON
			yields {Rreg_off,%1.reg,%1.off+%2.val}
with exact indexed_r_off ANYCON
			yields {indexed_r_off,%1.reg,%1.reg2,
					%1.scale,%1.off+%2.val}
with exact indexed_off ANYCON
			yields {indexed_off,%1.reg,%1.scale,%1.off+%2.val}
with exact Xreg_off ADDR_EXTERN
			yields {Xreg_off,%1.reg,%1.off+%2.off}
with exact Rreg_off ADDR_EXTERN
			yields {Rreg_off,%1.reg,%1.off+%2.off}
with exact indexed_r_off ADDR_EXTERN
			yields {indexed_r_off,%1.reg,%1.reg2,
					%1.scale,%1.off+%2.off}
with exact indexed_off ADDR_EXTERN
			yields {indexed_off,%1.reg,%1.scale,%1.off+%2.off}
with exact Xreg_off reg_off
  gen add %1.reg,%2.reg
			yields {Xreg_off,%1.reg,%1.off+%2.off}
with exact RREG ADDR_EXTERN
			yields {Rreg_off, %1, %2.off}
with exact ADDR_EXTERN RREG
			yields {Rreg_off,%2,%1.off}

with exact rmorconst ADDR_EXTERN
  uses reusing %1,ADDREG=%1
			yields {Xreg_off,%a,%2.off}
with exact ADDR_EXTERN rmorconst
  uses reusing %2,ADDREG=%2
			yields {Xreg_off,%a,%1.off}
with rmorconst ADDREG
  gen add %2,%1		yields %2
with ADDREG rmorconst
  gen add %1,%2		yields %1

pat sbs $1==4
with exact ANYCON Xreg_off
			yields {Xreg_off,%2.reg,%2.off+"-"+%1.val}
with exact ANYCON Rreg_off
			yields {Rreg_off,%2.reg,%2.off+"-"+%1.val}
with exact ANYCON indexed_r_off
			yields {indexed_r_off,%2.reg,%2.reg2,%2.scale,
					%2.off+"-"+%1.val}
with exact ANYCON indexed_off
			yields {indexed_off,%2.reg,%2.scale,%2.off+"-"+%1.val}
with exact ANYCON ADDR_LOCAL
			yields {ADDR_LOCAL,%2.ind-%1.val}
with rm Xreg_off
  gen sub %2.reg,%1	yields {Xreg_off,%2.reg,%2.off}

/* Should not occur
with exact reg_off ANYCON
			yields {reg_off,%1.reg,%1.off-%2.val}
with ANYCON ADDR_EXTERN
			yields {ADDR_EXTERN,%2.off+%1.val}
with exact ANYCON ADDR_LOCAL
			yields {ADDR_LOCAL,%1.val+%2.ind}
*/

with rm REG
  gen sub %2,%1		yields %2
with const ACC
  gen sub %2,%1		yields %2

/*******************************************************************
 *  Group 7 : Increment/Decrement Zero				   *
 *******************************************************************/

pat inc
with REG
gen inc %1			yields %1

#ifdef REGVARS
pat inl inreg($1)==reg_any
  kills regvar($1)
  gen inc {LOCAL,$1,4}
#endif

pat inl
kills indir, locals %ind + %size>$1 && %ind<$1+4
gen inc {LOCAL,$1,4}

pat ine
kills mem_nonlocals
gen inc {EXTERN,$1}

pat dec
with REG
gen dec %1			yields %1

#ifdef REGVARS
pat del inreg($1)==reg_any
  kills regvar($1)
  gen dec {LOCAL,$1,4}
#endif

pat del
kills indir, locals %ind+%size>$1 && %ind<$1+4
gen dec {LOCAL, $1, 4}

pat dee
kills mem_nonlocals
gen dec {EXTERN, $1}

#ifdef REGVARS
pat zrl inreg($1)==reg_any
  kills regvar($1)
  gen move {ANYCON, 0}, {LOCAL,$1,4}
#endif

pat zrl
kills indir, locals %ind+%size>$1 && %ind<$1+4
gen move {ANYCON, 0}, {LOCAL,$1,4}

pat zre
kills mem_nonlocals
gen move {ANYCON, 0},  {EXTERN, $1}

pat zrf			leaving zer $1

pat zer $1==4			yields {ANYCON, 0}
pat zer $1==8			yields {ANYCON, 0} {ANYCON, 0}
pat zer $1==12			yields {ANYCON, 0} {ANYCON, 0}
				       {ANYCON, 0}
pat zer $1==16			yields {ANYCON, 0} {ANYCON, 0}
				       {ANYCON, 0} {ANYCON, 0}

pat zer defined($1)
with STACK
gen move {ANYCON, $1/4}, ecx
    move {ANYCON, 0}, ebx
    1:
    push ebx
    loop {label,1b}

pat zer !defined($1)
with CXREG STACK
gen move {ANYCON, $1/4}, ebx
    sar ecx,{ANYCON, 1}
    1:
    push ebx
    loop {label,1b}

#ifdef REGVARS
proc lolrxxxstl example lol adi stl
with rmorconst
  kills regvar($1)
  gen axx* {LOCAL, $1, 4}, %1

proc lilrxxxsil example lil adi sil
with regorconst
kills all_mems
gen axx* {indir_r, regvar($1)}, %1

proc xxxrstl example adi stl
with rmorconst regorconst-RREG
  kills regvar($2)
  gen move %1, {LOCAL, $2, 4}
      axx* {LOCAL, $2, 4}, %2

pat lol adi stl $1==$3 && $2==4 && inreg($1)==reg_any	call lolrxxxstl("add")
pat lol adu stl $1==$3 && $2==4 && inreg($1)==reg_any	call lolrxxxstl("add")
pat lol ads stl $1==$3 && $2==4 && inreg($1)==reg_any	call lolrxxxstl("add")
pat lol and stl $1==$3 && $2==4 && inreg($1)==reg_any	call lolrxxxstl("and")
pat lol ior stl $1==$3 && $2==4 && inreg($1)==reg_any	call lolrxxxstl("or")
pat lol xor stl $1==$3 && $2==4 && inreg($1)==reg_any	call lolrxxxstl("xor")

pat lil adi sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilrxxxsil("add")
pat lil adu sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilrxxxsil("add")
pat lil ads sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilrxxxsil("add")
pat lil and sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilrxxxsil("and")
pat lil ior sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilrxxxsil("or")
pat lil xor sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilrxxxsil("xor")

pat adi stl $1==4 && inreg($2)==reg_any	call xxxrstl("add")
pat adu stl $1==4 && inreg($2)==reg_any	call xxxrstl("add")
pat ads stl $1==4 && inreg($2)==reg_any	call xxxrstl("add")
pat and stl $1==4 && inreg($2)==reg_any	call xxxrstl("and")
pat ior stl $1==4 && inreg($2)==reg_any	call xxxrstl("or")
pat xor stl $1==4 && inreg($2)==reg_any	call xxxrstl("xor")
#endif

proc lolxxxstl example lol adi stl
with regorconst
kills indir, locals %ind+%size>$1 && %ind<$1+4
gen axx* {LOCAL, $1, 4}, %1

pat lol adi stl $1==$3 && $2==4		call lolxxxstl("add")
pat lol adu stl $1==$3 && $2==4		call lolxxxstl("add")
pat lol ads stl $1==$3 && $2==4		call lolxxxstl("add")
pat lol and stl $1==$3 && $2==4		call lolxxxstl("and")
pat lol ior stl $1==$3 && $2==4		call lolxxxstl("or")
pat lol xor stl $1==$3 && $2==4		call lolxxxstl("xor")

proc lilxxxsil example lil adi sil
with regorconst
kills all_mems
uses ADDREG={LOCAL, $1, 4}
gen axx* {indir_r, %a}, %1
    killreg %a

pat lil adi sil $1==$3 && $2==4		call lilxxxsil("add")
pat lil adu sil $1==$3 && $2==4		call lilxxxsil("add")
pat lil ads sil $1==$3 && $2==4		call lilxxxsil("add")
pat lil and sil $1==$3 && $2==4		call lilxxxsil("and")
pat lil ior sil $1==$3 && $2==4		call lilxxxsil("or")
pat lil xor sil $1==$3 && $2==4		call lilxxxsil("xor")

#ifdef REGVARS
proc lilruxxsil example lil ngi sil
kills all_mems
gen uxx* {indir_r, regvar($1)}

pat lil ngi sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilruxxsil("neg")
pat lil com sil $1==$3 && $2==4 && inreg($1)==reg_any	call lilruxxsil("not")
pat lil dec sil $1==$3 && inreg($1)==reg_any		call lilruxxsil("dec")
pat lil inc sil $1==$3 && inreg($1)==reg_any		call lilruxxsil("inc")
pat lil adp sil $1==$3 && inreg($1)==reg_any && $2==1	call lilruxxsil("inc")
pat lil adp sil $1==$3 && inreg($1)==reg_any && $2==(0-1)
							call lilruxxsil("dec")
#endif

proc liluxxsil example lil ngi sil
kills all_mems
uses ADDREG={LOCAL, $1, 4}
gen uxx* {indir_r, %a}
    killreg %a

pat lil ngi sil $1==$3 && $2==4		call liluxxsil("neg")
pat lil com sil $1==$3 && $2==4		call liluxxsil("not")
pat lil dec sil $1==$3			call liluxxsil("dec")
pat lil inc sil $1==$3			call liluxxsil("inc")
pat lil adp sil $1==$3 && $2==1		call liluxxsil("inc")
pat lil adp sil $1==$3 && $2==(0-1)	call liluxxsil("dec")

proc loexxxste example loe adi ste
with regorconst
kills mem_nonlocals
gen axx* {EXTERN, $1}, %1

pat loe adi ste $1==$3 && $2==4		call loexxxste("add")
pat loe adu ste $1==$3 && $2==4		call loexxxste("add")
pat loe ads ste $1==$3 && $2==4		call loexxxste("add")
pat loe and ste $1==$3 && $2==4		call loexxxste("and")
pat loe ior ste $1==$3 && $2==4		call loexxxste("or")
pat loe xor ste $1==$3 && $2==4		call loexxxste("xor")

#ifdef REGVARS
proc lofrxxxsof example lol lof adi lol stf
with regorconst
kills all_mems
gen axx* {indir_r_off, regvar($1), $2}, %1

pat lol lof adi lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofrxxxsof("add")
pat lol lof adu lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofrxxxsof("add")
pat lol lof ads lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofrxxxsof("add")
pat lol lof and lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofrxxxsof("and")
pat lol lof ior lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofrxxxsof("or")
pat lol lof xor lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofrxxxsof("xor")

proc lofruxxsof example lol lof inc lol stf
kills all_mems
gen uxx* {indir_r_off, regvar($1), $2}

pat lol lof inc lol stf $1==$4 && $2==$5 && inreg($1)==reg_any
					call lofruxxsof("inc")
pat lol lof adp lol stf $1==$4 && $2==$5 && inreg($1)==reg_any && $3==1
					call lofruxxsof("inc")
pat lol lof dec lol stf $1==$4 && $2==$5 && inreg($1)==reg_any
					call lofruxxsof("dec")
pat lol lof adp lol stf $1==$4 && $2==$5 && inreg($1)==reg_any && $3==(0-1)
					call lofruxxsof("dec")
pat lol lof ngi lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofruxxsof("neg")
pat lol lof com lol stf $1==$4 && $2==$5 && $3==4 && inreg($1)==reg_any
					call lofruxxsof("not")

pat lol lof dup adp lol stf $1==$5 && $2==$6 && $3==4 && inreg($1)==reg_any
kills all_mems
uses ADDREG={indir_r_off, regvar($1), $2}
gen add {indir_r_off, regvar($1), $2}, {ANYCON, $4} 	yields %a

#endif

proc lofuxxsof example lol lof inc lol stf
kills all_mems
uses ADDREG={LOCAL,$1,4}
gen uxx* {indir_r_off, %a, $2}
    killreg %a

pat lol lof ngi lol stf $1==$4 && $2==$5 && $3==4	call lofuxxsof("neg")
pat lol lof com lol stf $1==$4 && $2==$5 && $3==4	call lofuxxsof("not")
pat lol lof dec lol stf $1==$4 && $2==$5		call lofuxxsof("dec")
pat lol lof inc lol stf $1==$4 && $2==$5		call lofuxxsof("inc")
pat lol lof adp lol stf $1==$4 && $2==$5 && $3==1	call lofuxxsof("inc")
pat lol lof adp lol stf $1==$4 && $2==$5 && $3==(0-1)	call lofuxxsof("dec")

proc lofxxxsof example lol lof adi lol stf
with regorconst
kills all_mems
uses ADDREG={LOCAL,$1,4}
gen axx* {indir_r_off, %a, $2}, %1
    killreg %a

pat lol lof adi lol stf $1==$4 && $2==$5 && $3==4	call lofxxxsof("add")
pat lol lof adu lol stf $1==$4 && $2==$5 && $3==4	call lofxxxsof("add")
pat lol lof ads lol stf $1==$4 && $2==$5 && $3==4	call lofxxxsof("add")
pat lol lof and lol stf $1==$4 && $2==$5 && $3==4	call lofxxxsof("and")
pat lol lof ior lol stf $1==$4 && $2==$5 && $3==4	call lofxxxsof("or")
pat lol lof xor lol stf $1==$4 && $2==$5 && $3==4	call lofxxxsof("xor")

pat lol lof dup adp lol stf $1==$5 && $2==$6 && $3==4
kills all_mems
uses ADDREG={LOCAL,$1,4},ADDREG
gen mov %b, {indir_r_off, %a, $2}
    add {indir_r_off, %a, $2}, {ANYCON, $4}
    killreg %a				yields %b

proc lefuxxsef example loe lof inc loe stf
kills all_mems
uses ADDREG={EXTERN,$1}
gen uxx* {indir_r_off, %a, $2}
    killreg %a

pat loe lof ngi loe stf $1==$4 && $2==$5 && $3==4	call lefuxxsef("neg")
pat loe lof com loe stf $1==$4 && $2==$5 && $3==4	call lefuxxsef("not")
pat loe lof dec loe stf $1==$4 && $2==$5		call lefuxxsef("dec")
pat loe lof inc loe stf $1==$4 && $2==$5		call lefuxxsef("inc")
pat loe lof adp loe stf $1==$4 && $2==$5 && $3==1	call lefuxxsef("inc")
pat loe lof adp loe stf $1==$4 && $2==$5 && $3==(0-1)	call lefuxxsef("dec")

proc lefxxxsef example loe lof adi loe stf
with regorconst
kills all_mems
uses ADDREG={EXTERN,$1}
gen axx* {indir_r_off, %a, $2}, %1
    killreg %a

pat loe lof adi loe stf $1==$4 && $2==$5 && $3==4	call lefxxxsef("add")
pat loe lof adu loe stf $1==$4 && $2==$5 && $3==4	call lefxxxsef("add")
pat loe lof ads loe stf $1==$4 && $2==$5 && $3==4	call lefxxxsef("add")
pat loe lof and loe stf $1==$4 && $2==$5 && $3==4	call lefxxxsef("and")
pat loe lof ior loe stf $1==$4 && $2==$5 && $3==4	call lefxxxsef("or")
pat loe lof xor loe stf $1==$4 && $2==$5 && $3==4	call lefxxxsef("xor")

pat loe lof dup adp loe stf $1==$5 && $2==$6 && $3==4
kills all_mems
uses ADDREG={EXTERN,$1},ADDREG
gen mov %b, {indir_r_off, %a, $2}
    add {indir_r_off, %a, $2}, {ANYCON, $4}
    killreg %a				yields %b

proc leiuxxsei example loe loi inc loe sti
kills all_mems
uses ADDREG={EXTERN,$1}
gen uxx* {indir_r, %a}
    killreg %a

pat loe loi ngi loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leiuxxsei("neg")
pat loe loi com loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leiuxxsei("not")
pat loe loi dec loe sti $1==$4 && $2==4 && $5==4
	call leiuxxsei("dec")
pat loe loi inc loe sti $1==$4 && $2==4 && $5==4
	call leiuxxsei("inc")
pat loe loi adp loe sti $1==$4 && $2==4 && $5==4 && $3==1
	call leiuxxsei("inc")
pat loe loi adp loe sti $1==$4 && $2==4 && $5==4 && $3==(0-1)
	call leiuxxsei("dec")

proc leixxxsei example loe loi adi loe sti
with regorconst
kills all_mems
uses ADDREG={EXTERN,$1}
gen axx* {indir_r, %a}, %1
    killreg %a

pat loe loi adi loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leixxxsei("add")
pat loe loi adu loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leixxxsei("add")
pat loe loi ads loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leixxxsei("add")
pat loe loi and loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leixxxsei("and")
pat loe loi ior loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leixxxsei("or")
pat loe loi xor loe sti $1==$4 && $2==4 && $5==4 && $3==4
	call leixxxsei("xor")

#ifdef REGVARS
proc lifuxxsif example lil lof inc lil stf
kills all_mems
uses ADDREG={indir_r,regvar($1)}
gen uxx* {indir_r_off, %a, $2}
    killreg %a

pat lil lof ngi lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifuxxsif("neg")
pat lil lof com lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifuxxsif("not")
pat lil lof dec lil stf $1==$4 && $2==$5 && inreg($1)>0
	call lifuxxsif("dec")
pat lil lof inc lil stf $1==$4 && $2==$5 && inreg($1)>0
	call lifuxxsif("inc")
pat lil lof adp lil stf $1==$4 && $2==$5 && inreg($1)>0 && $3==1
	call lifuxxsif("inc")
pat lil lof adp lil stf $1==$4 && $2==$5 && inreg($1)>0 && $3==(0-1)
	call lifuxxsif("dec")

proc lifxxxsif example lil lof adi lil stf
with regorconst
kills all_mems
uses ADDREG={indir_r,regvar($1)}
gen axx* {indir_r_off, %a, $2}, %1
    killreg %a

pat lil lof adi lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifxxxsif("add")
pat lil lof adu lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifxxxsif("add")
pat lil lof ads lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifxxxsif("add")
pat lil lof and lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifxxxsif("and")
pat lil lof ior lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifxxxsif("or")
pat lil lof xor lil stf $1==$4 && $2==$5 && $3==4 && inreg($1)>0
	call lifxxxsif("xor")

proc liiuxxsii example lil loi inc lil sti
kills all_mems
uses ADDREG={indir_r,regvar($1)}
gen uxx* {indir_r, %a}
    killreg %a

pat lil loi ngi lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liiuxxsii("neg")
pat lil loi com lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liiuxxsii("not")
pat lil loi dec lil sti $1==$4 && $2==4 && $5==4 && inreg($1)>0
	call liiuxxsii("dec")
pat lil loi inc lil sti $1==$4 && $2==4 && $5==4 && inreg($1)>0
	call liiuxxsii("inc")
pat lil loi adp lil sti $1==$4 && $2==4 && $5==4 && inreg($1)>0 && $3==1
	call liiuxxsii("inc")
pat lil loi adp lil sti $1==$4 && $2==4 && $5==4 && inreg($1)>0 && $3==(0-1)
	call liiuxxsii("dec")

proc liixxxsii example lil loi adi lil sti
with regorconst
kills all_mems
uses ADDREG={indir_r,regvar($1)}
gen axx* {indir_r, %a}, %1
    killreg %a

pat lil loi adi lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liixxxsii("add")
pat lil loi adu lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liixxxsii("add")
pat lil loi ads lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liixxxsii("add")
pat lil loi and lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liixxxsii("and")
pat lil loi ior lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liixxxsii("or")
pat lil loi xor lil sti $1==$4 && $2==4 && $5==4 && $3==4 && inreg($1)>0
	call liixxxsii("xor")

proc lolcrxxstl example lol loc sbi stl
  kills regvar($1)
  gen axx* {LOCAL,$1,4},{ANYCON,$2}

pat lol loc sbi stl $1==$4 && $3==4 && inreg($1)==reg_any
						call lolcrxxstl("sub")
pat lol loc sbu stl $1==$4 && $3==4 && inreg($1)==reg_any
						call lolcrxxstl("sub")
pat lol loc sli stl $1==$4 && $3==4 && inreg($1)==reg_any
						call lolcrxxstl("sal")
pat lol loc slu stl $1==$4 && $3==4 && inreg($1)==reg_any
						call lolcrxxstl("sal")
pat lol loc sri stl $1==$4 && $3==4 && inreg($1)==reg_any
						call lolcrxxstl("sar")
pat lol loc sru stl $1==$4 && $3==4 && inreg($1)==reg_any
						call lolcrxxstl("shr")
#endif

proc lolcxxstl example lol loc sbi stl
  kills indir, locals %ind+%size>$1 && %ind<$1+4
  gen axx* {LOCAL,$1,4},{ANYCON,$2}

pat lol loc sbi stl $1==$4 && $3==4		call lolcxxstl("sub")
pat lol loc sbu stl $1==$4 && $3==4		call lolcxxstl("sub")
pat lol loc adi stl $1==$4 && $3==4		call lolcxxstl("add")
pat lol loc adi stl $1==$4 && $3==4		call lolcxxstl("add")
pat lol loc sli stl $1==$4 && $3==4		call lolcxxstl("sal")
pat lol loc slu stl $1==$4 && $3==4		call lolcxxstl("sal")
pat lol loc sri stl $1==$4 && $3==4		call lolcxxstl("sar")
pat lol loc sru stl $1==$4 && $3==4		call lolcxxstl("shr")

proc loecxxste example loe loc sbi ste
  kills mem_nonlocals
  gen axx* {EXTERN,$1},{ANYCON,$2}

pat loe loc sbi ste $1==$4 && $3==4		call loecxxste("sub")
pat loe loc sbu ste $1==$4 && $3==4		call loecxxste("sub")
pat loe loc adu ste $1==$4 && $3==4		call loecxxste("add")
pat loe loc adi ste $1==$4 && $3==4		call loecxxste("add")
pat loe loc sli ste $1==$4 && $3==4		call loecxxste("sal")
pat loe loc slu ste $1==$4 && $3==4		call loecxxste("sal")
pat loe loc sri ste $1==$4 && $3==4		call loecxxste("sar")
pat loe loc sru ste $1==$4 && $3==4		call loecxxste("shr")

#ifdef REGVARS
proc lilcxxsil example lil loc sbi sil
  kills mem_nonlocals
  gen axx* {indir_r,regvar($1)},{ANYCON,$2}

pat lil loc sbi sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("sub")
pat lil loc sbu sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("sub")
pat lil loc adu sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("add")
pat lil loc adi sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("add")
pat lil loc sli sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("sal")
pat lil loc slu sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("sal")
pat lil loc sri sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("sar")
pat lil loc sru sil $1==$4 && $3==4 && inreg($1)>0	call lilcxxsil("shr")

pat lol ngi stl $1==$3 && $2==4 && inreg($1)==reg_any
kills regvar($1)
gen neg {LOCAL, $1, 4}
#endif

pat lol ngi stl $1==$3 && $2==4
kills indir, locals %ind+%size>$1 && %ind<$1+4
gen neg {LOCAL, $1, 4}

pat lol lol adp stl loi stl $1==$2 && $2==$4 && $5<=4
					leaving lol $1 loi $5 stl $6 lol $2 adp $3 stl $4

#ifdef REGVARS
pat lol lol adp stl loi loc loc cii $1==$2 && $2==$4 && $5==1 && inreg($1) > 0 && $6==1 && $7==4
uses REG
gen movsxb %a,{indir_r1, regvar($1)}
				yields %a
					leaving lol $2 adp $3 stl $4

pat lol lol adp stl loi $1==$2 && $2==$4 && $5==1 && inreg($1) > 0
uses REG1 = {indir_r1, regvar($1)}
				yields %a
					leaving lol $2 adp $3 stl $4

pat lol lol adp stl loi loc loc cii $1==$2 && $2==$4 && $5==2 && inreg($1) > 0 && $6==2 && $7==4
uses REG
gen movsx %a,{indir_r2, regvar($1)}
				yields %a
					leaving lol $2 adp $3 stl $4

pat lol lol adp stl loi $1==$2 && $2==$4 && $5==2 && inreg($1) > 0
uses REG2 = {indir_r2, regvar($1)}
				yields %a
					leaving lol $2 adp $3 stl $4

pat lol lol adp stl loi $1==$2 && $2==$4 && $5==4 && inreg($1) > 0
uses REG = {indir_r, regvar($1)}
				yields %a
					leaving lol $2 adp $3 stl $4
pat adp stl inreg($2) > 0		leaving stl $2 lol $2 adp $1 stl $2
#endif

pat lol lol adp stl $1==$2 && $2==$4
uses ADDREG={LOCAL,$1,4}	yields %a
					leaving lol $2 adp $3 stl $2

pat lol inl $1==$2
uses REG={LOCAL,$1,4}		yields %a
					leaving inl $1

pat lol del $1==$2
uses REG={LOCAL,$1,4}		yields %a
					leaving del $1

pat lol adp stl $1==$3 && $2==1		leaving inl $1
pat lol adp stl $1==$3 && $2==0-1	leaving del $1
pat lol adp stl $1==$3			leaving loc $2 lol $1 adi 4 stl $3

#ifdef REGVARS
pat lol com stl $1==$3 && $2==4 && inreg($1)==reg_any
kills regvar($1)
gen not {LOCAL,$1,4}
#endif

pat lol com stl $1==$3 && $2==4
kills indir, locals %ind+%size>$1 && %ind<$1+4
gen not {LOCAL, $1, 4}

#ifdef REGVARS
pat lil lil adp sil $1==$2 && $1==$4 && inreg($1)==reg_any
uses ADDREG={indir_r, regvar($1)}
				yields %a
					leaving lil $1 adp $3 sil $4

pat lil lil inc sil $1==$2 && $1==$4 && inreg($1)==reg_any
uses REG={indir_r, regvar($1)}
				yields %a
					leaving lil $1 inc sil $4

pat lil lil dec sil $1==$2 && $1==$4 && inreg($1)==reg_any
uses REG={indir_r, regvar($1)}
				yields %a
					leaving lil $1 dec sil $4
#endif

pat lil adp sil $1==$3			leaving loc $2 lil $1 adi 4 sil $3

#ifdef REGVARS
pat lol lof lol lof adp lol stf
	$1==$3 && $1==$6 && $2==$4 && $2==$7 && inreg($1)==reg_any
uses ADDREG={indir_r_off, regvar($1), $2}
				yields %a
					leaving lol $1 lof $2 adp $5 lol $6 stf $7

pat lol lof lol lof inc lol stf
	$1==$3 && $1==$6 && $2==$4 && $2==$7 && inreg($1)==reg_any
uses REG={indir_r_off, regvar($1), $2}
				yields %a
					leaving lol $1 lof $2 inc lol $6 stf $7

pat lol lof lol lof dec lol stf
	$1==$3 && $1==$6 && $2==$4 && $2==$7 && inreg($1)==reg_any
uses REG={indir_r_off, regvar($1), $2}
				yields %a
					leaving lol $1 lof $2 dec lol $6 stf $7
#endif

pat lol lof adp lol stf $1==$4 && $2==$5
			leaving loc $3 lol $1 lof $2 adi 4 lol $4 stf $5

pat loe ngi ste $1==$3 && $2==4
kills mem_nonlocals
gen neg {EXTERN, $1}

pat loe loe adp ste $1==$2 && $1==$4
uses REG={EXTERN,$1}	yields %a
					leaving loe $1 adp $3 ste $1

pat loe ine $1==$2
uses REG={EXTERN,$1}	yields %a
					leaving ine $1

pat loe dee $1==$2
uses REG={EXTERN,$1}	yields %a
					leaving dee $1

pat loe adp ste $1==$3 && $2==1		leaving ine $1

pat loe adp ste $1==$3 && $2==0-1	leaving dee $1

pat loe adp ste $1==$3			leaving loc $2 loe $1 adi 4 ste $3

pat loe com ste $1==$3 && $2==4
kills mem_nonlocals
gen not {EXTERN, $1}

pat loe lof adp loe stf $1==$4 && $2==$5
				leaving loc $3 loe $1 lof $2 adi 4 loe $1 stf $2
pat lil lof adp lil stf $1==$4 && $2==$5
				leaving loc $3 lil $1 lof $2 adi 4 lil $1 stf $2

/*******************************************************************
 *  Group 8: Convert Instructions				   *
 *******************************************************************/

pat cii
with CXREG DXREG ACC
kills ALL
gen proccall {label,".cii"}		yields %3

pat ciu					leaving cuu
pat cui					leaving cuu

pat cuu

pat loc loc cii loc and zeq $4<256 && $4>=0 && $5==4 && $1==1 && $2==4
		leaving loc $4 and $5 zeq $6
pat loc loc cii loc and zne $4<256 && $4>=0 && $5==4 && $1==1 && $2==4
		leaving loc $4 and $5 zne $6
pat loc loc cii loc and zeq $4<65536 && $4>=0 && $5==4 && $1==2 && $2==4
		leaving loc $4 and $5 zeq $6
pat loc loc cii loc and zne $4<65536 && $4>=0 && $5==4 && $1==2 && $2==4
		leaving loc $4 and $5 zne $6

pat loc loc cii $1==1 && $2==4
with ACC
gen movsxb %1,%1		yields eax
with exact rm1
uses reusing %1, GENREG
gen movsxb %a,%1		yields %a

pat loc loc cii $1==2 && $2==4
with ACC
gen  movsx %1,%1		yields eax
with exact rm2
uses reusing %1,GENREG
gen movsx %a,%1			yields %a

pat loc loc ciu				leaving loc $1 loc $2 cuu
pat loc loc cui				leaving loc $1 loc $2 cuu

pat loc loc cuu $1==$2

pat loc loc cif $1==4 && $2==4		leaving loc 4 cal ".cif4" asp 4
pat loc loc cif $1==4 && $2==8		leaving loc 4 cal ".cif8"
pat loc loc cuf $1==4 && $2==4		leaving loc 4 cal ".cuf4" asp 4
pat loc loc cuf $1==4 && $2==8		leaving loc 4 cal ".cuf8"
pat loc loc cfi		leaving loc $1 loc $2 cal ".cfi" asp 8+($1-4)
pat loc loc cfu		leaving loc $1 loc $2 cal ".cfu" asp 8+($1-4)
pat loc loc cff $1==8 && $2==4	leaving cal ".cff4" asp 4
pat loc loc cff $1==4 && $2==8
with REG
kills ALL
  gen push {ANYCON,0}
      push %1			leaving cal ".cff8"

/********************************************************************
 *  Group 9 : Logical Instructions				    *
 ********************************************************************/

pat and $1==4
with REG rmorconst
  gen and %1,%2				yields %1
with rmorconst REG
  gen and %2,%1				yields %2

pat loc and $1==255 && $2==4
with GENREG				yields %1.1

pat and $1==8
with EXACT REG REG rmorconst rmorconst
  gen and %1,%3
      and %2,%4				yields %2 %1
with rmorconst rmorconst REG REG
  gen and %3,%1
      and %4,%2				yields %4 %3

pat and defined($1)
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".and"}

pat and !defined($1)
with CXREG
kills ALL
  gen proccall {label, ".and"}

pat ior $1==4
with REG rmorconst
  gen or %1,%2				yields %1
with rmorconst REG
  gen or %2,%1				yields %2

pat ior $1==8
with EXACT REG REG rmorconst rmorconst
  gen or %1,%3
      or %2,%4				yields %2 %1
with rmorconst rmorconst REG REG
  gen or %3,%1
      or %4,%2				yields %4 %3

pat ior defined($1)
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".ior"}

pat ior !defined($1)
with CXREG
kills ALL
  gen proccall {label, ".ior"}

pat xor $1==4
with REG rmorconst
  gen xor %1,%2				yields %1
with rmorconst REG
  gen xor %2,%1				yields %2

pat xor $1==8
with EXACT REG REG rmorconst rmorconst
  gen xor %1,%3
      xor %2,%4				yields %2 %1
with rmorconst rmorconst REG REG
  gen xor %3,%1
      xor %4,%2				yields %4 %3

pat xor defined($1)
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".xor"}

pat xor !defined($1)
with CXREG
kills ALL
  gen proccall {label, ".xor"}

pat com $1==4
with REG
  gen not %1				yields %1

pat com $1==8
with REG REG
  gen not %2
      not %1				yields %2 %1

pat com defined($1)
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".com"}

pat com !defined($1)
with CXREG
kills ALL
  gen proccall {label, ".com"}

pat rol $1==4
with SHIFT_CREG REG
  gen rol %2,cl				yields %2
with ANYCON REG
  gen rol %2,%1				yields %2

pat ror $1==4
with SHIFT_CREG REG
  gen ror %2,cl				yields %2
with ANYCON REG
  gen ror %2,%1				yields %2

/*******************************************************************
 *  Group 10 : Set Instructions					   *
 *******************************************************************/

pat inn $1==4
with SHIFT_CREG REG
gen shr %2,cl
    and %2,{ANYCON, 1}			yields %2
with ANYCON REG
gen shr %2,%1
    and %2,{ANYCON, 1}			yields %2

pat loc inn $1==0 && $2==4
with REG
gen and %1,{ANYCON, 1}			yields %1

pat inn defined($1)
with ACC
kills ALL
gen mov ecx,{ANYCON, $1}
    proccall {label,".inn"}		yields eax

pat inn !defined($1)
with CXREG ACC
kills ALL
gen proccall {label,".inn"}		yields eax

pat loc inn zeq $2==4
with rm STACK
gen check %1,{ANYCON,1<<$1}
    je {label,$3}

pat loc inn zne $2==4
with rm STACK
gen check %1,{ANYCON,1<<$1}
    jne {label,$3}

pat set $1==4
with SHIFT_CREG
uses REG={ANYCON, 1}
gen shl %a,cl			yields %a

pat set defined($1)
with ACC
kills ALL
gen mov ecx,{ANYCON, $1}
    proccall {label,".set"}

pat set !defined($1)
with CXREG ACC
kills ALL
gen proccall {label,".set"}

/********************************************************************
 *  Group 11 : Array Instructions				    *
 ********************************************************************/

pat lae aar $2==4 && rom($1,3)==1 && rom($1,1)==0
				leaving ads 4

pat lae aar $2==4 && rom($1,3)==1 && rom($1,1)!=0
				leaving adp 0-rom($1,1) ads 4

pat lae aar $2==4 && rom($1,3)==2 && rom($1,1)==0
				leaving loc 1 sli 4 ads 4

pat lae aar $2==4 && rom($1,3)==2 && rom($1,1)!=0
				leaving adp 0-rom($1,1) loc 1 sli 4 ads 4

pat lae aar $2==4 && rom($1,3)==4 && rom($1,1)==0
				leaving loc 2 sli 4 ads 4

pat lae aar $2==4 && rom($1,3)==4 && rom($1,1)!=0
				leaving adp 0-rom($1,1) loc 2 sli 4 ads 4

pat lae aar $2==4 && rom($1,3)==8 && rom($1,1)==0
				leaving loc 3 sli 4 ads 4

pat lae aar $2==4 && rom($1,3)==8 && rom($1,1)!=0
				leaving adp 0-rom($1,1) loc 3 sli 4 ads 4

pat lae aar $2==4 && rom($1,1)==0
  with ADDREG
  gen imul %1,%1,{ANYCON,rom($1,3)}	yields %1	leaving ads 4

pat lae aar $2==4 && defined(rom($1,1))
  with ADDREG
  gen imul %1,%1,{ANYCON,rom($1,3)}	yields %1
				leaving adp 0-rom($1,1)*rom($1,3) ads 4

/* when followed by an LOI or STI instruction, use indexed mode */
pat loc sli ads loi ($1==1 || $1==2 || $1==3) && $2==4 && $3==4
with IREG ADDR_LOCAL		yields {indexed_r_off,ebp,%1,1<<$1,%2.ind}
					leaving loi $4
with IREG ADDR_EXTERN		yields {indexed_off,%1,1<<$1,%2.off}
					leaving loi $4
with IREG ADDREG		yields {indexed_r_off,%2,%1,1<<$1,0}
					leaving loi $4

pat loc sli ads sti ($1==1 || $1==2 || $1==3) && $2==4 && $3==4
with IREG ADDR_LOCAL		yields {indexed_r_off,ebp,%1,1<<$1,%2.ind}
					leaving sti $4
with IREG ADDR_EXTERN		yields {indexed_off,%1,1<<$1,%2.off}
					leaving sti $4
with IREG ADDREG		yields {indexed_r_off,%2,%1,1<<$1,0}
					leaving sti $4

pat loc sli ads ($1==1 || $1==2 || $1==3) && $2==4 && $3==4
with IREG ADDR_LOCAL		yields {indexed_r_off,ebp,%1,1<<$1,%2.ind}
with IREG ADDR_EXTERN		yields {indexed_off,%1,1<<$1,%2.off}
with IREG ADDREG		yields {indexed_r_off,%2,%1,1<<$1,0}
with REG rmorconst
gen sal %1,{ANYCON,$1}		yields %2 %1	leaving ads 4

pat aar $1==4
  with AREG REG
  gen sub %2,{indir_r,%1}
      imul %2,{indir_r_off,%1,8}		yields %2	leaving ads 4
  with reg_off REG
  gen sub %2,{indir_r_off, %1.reg, %1.off}
      imul %2,{indir_r_off, %1.reg, 8+%1.off}
					yields %2	leaving ads 4
  with ADDR_LOCAL REG
  gen sub %2,{LOCAL,%1.ind,4}
      imul %2,{LOCAL,8+%1.ind,4}	yields %2	leaving ads 4
  with ADDR_EXTERN REG
  gen sub %2,{EXTERN,%1.off}
      imul %2,{EXTERN,8+%1.off}		yields %2	leaving ads 4

pat lae lar defined(rom($1,3))	leaving lae $1 aar $2 loi rom($1,3)

pat lae sar defined(rom($1,3))	leaving lae $1 aar $2 sti rom($1,3)

pat aar !defined($1)
  kills ALL
  gen proccall {label,".iaar"}		yields ebx

pat sar $1==4
  with BXREG ACC
  kills ALL
  gen proccall {label,".sar4"}

pat sar !defined($1)
  kills ALL
  gen proccall {label,".isar"}

pat lar $1==4
  with BXREG ACC
  kills ALL
  gen proccall {label,".lar4"}

pat lar !defined($1)
  kills ALL
  gen proccall {label,".ilar"}

/*******************************************************************
 *  Group 12 : Compare Instructions				   *
 *******************************************************************/

pat cmi $1==4
with register rmorconst
  uses REG={ANYCON,0}
  gen cmp %1,%2
      je {label,2f}
      jl {label,1f}
      inc %a
      jmp {label,2f}
      1:
      dec %a
      2:			yields %a
with rmorconst register
  uses REG={ANYCON,0}
  gen cmp %2,%1
      je {label,2f}
      jg {label,1f}
      inc %a
      jmp {label,2f}
      1:
      dec %a
      2:			yields %a

pat cmu $1==4				 leaving cmp

pat cms $1==4
with REG rmorconst
  gen sub %1,%2			yields %1
with rmorconst REG
  gen sub %2,%1			yields %2

pat cms $1==8
with rmorconst rmorconst REG REG
  gen sub %3,%1
      sbb %4,%2
      or %4,%3			yields %4
with REG REG rmorconst rmorconst
  gen sub %1,%3
      sbb %2,%4
      or %2,%1			yields %2

pat cms defined($1)
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label,".cms"}	yields ecx

pat cms !defined($1)
with CXREG
kills ALL
  gen proccall {label,".cms"}	yields ecx

pat cmf $1==4
kills ALL
  gen proccall {label,".cmf4"}	leaving asp 8 lfr 4

pat cmf $1==8
kills ALL
  gen proccall {label,".cmf8"}	leaving asp 16 lfr 4

pat cmp
with register rmorconst
uses REG = {ANYCON,0}
  gen cmp %1,%2
      je  {label,2f}
      jb  {label,1f}
      inc %a
      jmp {label,2f}
      1: dec %a
      2:			    yields %a
with rmorconst register
uses REG = {ANYCON,0}
  gen cmp %2,%1
      je  {label,2f}
      ja  {label,1f}
      inc %a
      jmp {label,2f}
      1: dec %a
      2:			    yields %a

proc txx
with rm
uses REG = {ANYCON,0}
  gen test %1
      jxx* {label,1f}
      inc %a
      1:			    yields %a

pat tlt call txx("jge")
pat tle call txx("jg")
pat teq call txx("jne")
pat tne call txx("je")
pat tge call txx("jl")
pat tgt call txx("jle")

proc txxior
with rm REG
  gen test %1
      jxx* {label,1f}
      or  %2,{ANYCON,1}
      1:			    yields %2

pat tlt ior $2==4 call txxior("jge")
pat tle ior $2==4 call txxior("jg")
pat teq ior $2==4 call txxior("jne")
pat tne ior $2==4 call txxior("je")
pat tge ior $2==4 call txxior("jl")
pat tgt ior $2==4 call txxior("jle")

proc cmixxior
with regorconst rm REG
  gen cmp %2,%1
      jxx* {label,1f}
      or  %3,{ANYCON,1}
      1:			    yields %3

pat cmi tlt ior $1==4 && $3==4 call cmixxior("jge")
pat cmi tle ior $1==4 && $3==4 call cmixxior("jg")
pat cmi teq ior $1==4 && $3==4 call cmixxior("jne")
pat cmi tne ior $1==4 && $3==4 call cmixxior("je")
pat cmi tge ior $1==4 && $3==4 call cmixxior("jl")
pat cmi tgt ior $1==4 && $3==4 call cmixxior("jle")

proc cmxtxx
with regorconst rm
uses REG = {ANYCON,0}
  gen cmp %2,%1
      jxx[1] {label,1f}
      inc %a
      1:			    yields %a
with rm regorconst
uses REG = {ANYCON,0}
  gen cmp %1,%2
      jxx[2] {label,1f}
      inc %a
      1:			    yields %a

pat cmi tlt $1==4     call cmxtxx("jge","jle")
pat cmi tle $1==4     call cmxtxx("jg","jl")
pat cmi teq $1==4     call cmxtxx("jne","jne")
pat cmi tne $1==4     call cmxtxx("je","je")
pat cmi tge $1==4     call cmxtxx("jl","jg")
pat cmi tgt $1==4     call cmxtxx("jle","jge")
pat cmp tlt	      call cmxtxx("jae","jbe")
pat cmp tle	      call cmxtxx("ja","jb")
pat cmp teq	      call cmxtxx("jne","jne")
pat cmp tne	      call cmxtxx("je","je")
pat cmp tge	      call cmxtxx("jb","ja")
pat cmp tgt	      call cmxtxx("jbe","jae")
pat cms teq $1==4     call cmxtxx("jne","jne")
pat cms tne $1==4     call cmxtxx("je","je")

proc cmxzxx example cmp zlt
with regorconst rm STACK
  gen cmp %2,%1
      jxx[1] {label,$2}
with rm regorconst STACK
  gen cmp %1,%2
      jxx[2] {label,$2}

pat cmp zlt	    call cmxzxx("jb","ja")
pat cmp zle	    call cmxzxx("jbe","jae")
pat cmp zeq	    call cmxzxx("je","je")
pat cmp zne	    call cmxzxx("jne","jne")
pat cmp zge	    call cmxzxx("jae","jbe")
pat cmp zgt	    call cmxzxx("ja","jb")
pat cms zeq $1==4   call cmxzxx("je","je")
pat cms zne $1==4   call cmxzxx("jne","jne")

pat cms zne $1==8
with regorconst regorconst rm rm STACK
  gen cmp %3,%1
      jne {label,$2}
      cmp %4,%2
      jne {label,$2}
with rm rm regorconst regorconst STACK
kills ALL
  gen cmp %1,%3
      jne {label,$2}
      cmp %2,%4
      jne {label,$2}

pat cms zeq $1==8
with regorconst regorconst rm rm STACK
  gen cmp %3,%1
      jne {label, 1f}
      cmp %4,%2
      je {label,$2}
      1:
with rm rm regorconst regorconst STACK
kills ALL
  gen cmp %1,%3
      jne {label,1f}
      cmp %2,%4
      je {label,$2}
      1:

proc andzxx example and zeq
with regorconst rm STACK
  gen check %2,%1
      jxx* {label,$2}
with exact rm regorconst
  kills ALL
  gen check %1,%2
      jxx* {label,$2}

pat and zeq $1==4 call andzxx("je")
pat and zne $1==4 call andzxx("jne")

proc locandzxx example loc and zeq
with rm1 STACK
  gen testb %1,{ANYCON,$1}
      jxx* {label,$3}
with GENREG STACK
  gen testb %1.1,{ANYCON,$1}
      jxx* {label,$3}
with exact RREG
  kills ALL
  gen check %1,{ANYCON,$1}
      jxx* {label,$3}

pat loc and zeq $1<256 && $1>=0 && $2==4 call locandzxx("je")
pat loc and zne $1<256 && $1>=0 && $2==4 call locandzxx("jne")

proc locbxx example loc beq
with rm1 STACK
  gen cmpb %1,{ANYCON,$1}
      jxx* {label,$2}
with rm STACK
  gen cmp %1,{ANYCON,$1}
      jxx* {label,$2}

pat loc beq $1<256 && $1>=0 call locbxx("je")
pat loc bne $1<256 && $1>=0 call locbxx("jne")

proc loccmuzxx example loc cmu zeq
with rm1 STACK
  gen cmpb %1,{ANYCON,$1}
      jxx* {label,$3}
with rm STACK
  gen cmp %1,{ANYCON,$1}
      jxx* {label,$3}

pat loc cmu zeq $1<256 && $1>=0 && $2==4 call loccmuzxx("je")
pat loc cmu zne $1<256 && $1>=0 && $2==4 call loccmuzxx("jne")

/*******************************************************************
 *  Group 13 : Branch Instructions				   *
 *******************************************************************/

pat bra
  with STACK
  gen jmp {label,$1}

proc bxx example blt
with regorconst rm STACK
  gen cmp %2,%1
      jxx[1] {label,$1}
with rm regorconst STACK
  gen cmp %1,%2
      jxx[2] {label,$1}

pat blt		call bxx("jl","jg")
pat ble		call bxx("jle","jge")
pat beq		call bxx("je","je")
pat bne		call bxx("jne","jne")
pat bge		call bxx("jge","jle")
pat bgt		call bxx("jg","jl")

proc zxx example zlt
with rm STACK
  gen test %1
      jxx* {label,$1}

pat zlt		call zxx("jl")
pat zle		call zxx("jle")
pat zge		call zxx("jge")
pat zgt		call zxx("jg")

pat zne
with rm+rm1 STACK
  gen test %1
      jne {label,$1}

pat zeq
with rm+rm1 STACK
  gen test %1
      je {label,$1}

/*******************************************************************
 *  Group 14 : Procedure-call Instructions			   *
 *******************************************************************/

pat cal
  kills ALL
  gen proccall {label,$1}

pat cai
  with rm
  kills ALL
  gen proccall %1

#ifdef REGVARS
pat lfr adi stl $1==4 && $2==4 && inreg($3) > 0
  kills ALL
  gen pop {LOCAL,$3,4}
      add {LOCAL,$3,4}, eax
#endif

pat lfr $1==4			yields eax

pat lfr $1==8			yields edx eax

pat ret $1==0
  kills ALL
  gen
#ifdef REGVARS
	return
#else
      leave.
      ret.
#endif

pat ret $1==4
  with ACC
  kills ALL
  gen
#ifdef REGVARS
	return
#else
      leave.
      ret.
#endif

pat ret $1==8
  with ACC DXREG
  kills ALL
  gen
#ifdef REGVARS
	return
#else
      leave.
      ret.
#endif

/********************************************************************
 *  Group 15 : Miscellaneous Instructions			    *
 ********************************************************************/

pat asp $1==4
with exact a_word
with STACK
  uses CXREG /* GENREG may contain lfr area */
  gen pop %a

pat asp $1==8
with exact a_word a_word
with STACK
  uses CXREG /* GENREG may contain lfr area */
  gen pop %a
      pop %a

pat asp $1==0-4
with STACK					yields ebp

pat asp
with STACK
  gen add esp,{ANYCON,$1}

pat ass $1==4
with rmorconst STACK
  gen add esp,%1

pat ass !defined($1)
with rm rmorconst STACK
  gen cmp %1,{ANYCON,4}
      jne {label, ".unknown"}
      add esp,%2

pat blm $1==0					leaving asp 4

pat blm $1>0
kills ALL
  gen mov ecx,{ANYCON,$1/4}
      proccall {label, ".blm"}

pat bls $1==4
with CXREG
kills ALL
  gen sar ecx,{ANYCON,2}
      proccall {label, ".blm"}

pat bls !defined($1)
with rm-CXREG CXREG
kills ALL
  gen cmp %1,{ANYCON,4}
      jne {label, ".unknown"}
      sar ecx,{ANYCON,2}
      proccall {label, ".blm"}

pat csa $1==4
with BXREG ACC
kills ALL
  gen jmp {label, ".csa4"}

pat csa !defined($1)
with rm-BXREG-ACC BXREG ACC
kills ALL
  gen cmp %1,{ANYCON,4}
      jne {label, ".unknown"}
      jmp {label, ".csa4"}

pat csb $1==4
with BXREG ACC
kills ALL
  gen jmp {label, ".csb4"}

pat csb !defined($1)
with rm-BXREG-ACC BXREG ACC
  gen cmp %1,{ANYCON,4}
      jne {label, ".unknown"}
      jmp {label, ".csb4"}

pat dup $1==4
with anyreg				yields %1 %1
with ACC1				yields %1 %1

pat dup $1==8
with regorconst regorconst		yields %2 %1 %2 %1

pat dup
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".dup"}

pat dus $1==4
with CXREG
kills ALL
  gen proccall {label, ".dup"}

pat dus !defined($1)
with rm-CXREG CXREG
kills ALL
  gen cmp %1,{ANYCON,4}
      jne {label, ".unknown"}
      proccall {label, ".dup"}

pat exg $1==4
with a_word a_word			yields %1 %2

pat exg $1==8
with a_word a_word a_word a_word	yields %2 %1 %4 %3

pat exg defined($1)
kills ALL
  gen mov ecx,{ANYCON,$1}
      proccall {label, ".exg"}

pat exg
with CXREG
  kills ALL
  gen proccall {label, ".exg"}

pat gto
kills ALL
  gen mov ebx,{ADDR_EXTERN,$1}
      jmp {label, ".gto"}

pat fil
  gen mov {EXTERN,"hol0+4"},{ADDR_EXTERN,$1}

pat lim
  uses REG
  gen mov %a,{EXTERN,".ignmask"}	yields %a

pat lin
  gen mov {EXTERN,"hol0"},{ANYCON,$1}

pat lni
  gen inc {EXTERN,"hol0"}

pat lor $1==0				yields ebp

pat lor $1==1
with STACK
  uses REG
  gen mov %a,esp			yields %a

pat lor $1==2
  uses REG
  gen mov %a,{EXTERN,".reghp"}		yields %a

pat mon
with ACC
kills ALL
  gen proccall {label, ".mon"}

pat nop
kills ALL
#ifdef DEBUG
  gen proccall {label, ".nop"}
#endif

pat rck $1==4
with BXREG ACC
kills ALL
  gen proccall {label, ".rck"}		yields eax

pat rck !defined($1)
with rm-BXREG-ACC BXREG ACC
kills ALL
  gen cmp %1,{ANYCON,4}
      jne {label, ".unknown"}
      proccall {label, ".rck"}		yields eax

pat rtt						leaving ret 0

pat sig
with REG
  gen xchg {EXTERN,".trppc"},%1		yields %1

pat sim
with regorconst
  gen mov {EXTERN,".ignmask"},%1

pat str $1==0
with rmorconst
  gen mov ebp,%1

pat str $1==1
with rmorconst STACK
  gen mov esp,%1

pat str $1==2
kills ALL
  gen proccall {label, ".strhp"}

pat trp
with ACC
kills ALL
  gen proccall {label, ".Xtrp"}