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Remove la; turns out that the assembler gets upset if you ask it to

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generate more than one fixup per instruction (I think).
This commit is contained in:
David Given 2018-09-14 11:30:15 +02:00
parent ac33bdd031
commit ba0849c87c
5 changed files with 9 additions and 18 deletions
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1
mach/mips/as/mach2.c
View file

@ -3,7 +3,6 @@
%token <y_word> FCOND %token <y_word> FCOND
%token <y_word> OP_LI %token <y_word> OP_LI
%token <y_word> OP_LA
%token <y_word> HI16 %token <y_word> HI16
%token <y_word> HA16 %token <y_word> HA16

1
mach/mips/as/mach3.c
View file

@ -75,7 +75,6 @@
0, FPR, 31, "f31", 0, FPR, 31, "f31",
0, OP_LI, 0, "li", 0, OP_LI, 0, "li",
0, OP_LA, 0, "la",
0, HI16, 0, "hi16", 0, HI16, 0, "hi16",
0, HA16, 0, "ha16", 0, HA16, 0, "ha16",
0, LO16, 0, "lo16", 0, LO16, 0, "lo16",

13
mach/mips/as/mach4.c
View file

@ -14,19 +14,6 @@
emit4(0x34000000 | (reg<<16) | (reg<<21) | (val & 0xffff)); /* ori reg, reg, value */ emit4(0x34000000 | (reg<<16) | (reg<<21) | (val & 0xffff)); /* ori reg, reg, value */
} }
} }
| OP_LA GPR ',' expr
{
word_t reg = $2;
word_t type = $4.typ & S_TYP;
uint32_t val = $4.val;
if (type != S_ABS)
newrelo($4.typ, RELO2HI | FIXUPFLAGS);
emit4(0x3c000000 | (reg<<16) | (val>>16)); /* lui reg, value */
if (type != S_ABS)
newrelo($4.typ, RELO2 | FIXUPFLAGS);
emit4(0x34000000 | (reg<<16) | (reg<<21) | (val & 0xffff)); /* ori reg, reg, value */
}
extabsexp extabsexp
: absexp : absexp

6
mach/mips/mcg/table
View file

@ -635,11 +635,13 @@ PATTERNS
ALUCC(EOR.I, "xori") ALUCC(EOR.I, "xori")
out:(int)reg = value:LABEL.I out:(int)reg = value:LABEL.I
emit "la %out, $value" emit "lui %out, hi16[$value]"
emit "ori %out, %out, lo16[$value]"
cost 4; cost 4;
out:(int)reg = value:BLOCK.I out:(int)reg = value:BLOCK.I
emit "la %out, $value" emit "lui %out, hi16[$value]"
emit "ori %out, %out, lo16[$value]"
cost 4; cost 4;
out:(int)reg = value:CONST.I out:(int)reg = value:CONST.I

4
util/led/relocate.c
View file

@ -556,11 +556,14 @@ long off;
long valu; long valu;
int sectindex = relo->or_sect - S_MIN; int sectindex = relo->or_sect - S_MIN;
extern struct outhead outhead; extern struct outhead outhead;
uint32_t realaddress = outsect[sectindex].os_base + relo->or_addr
+ relorig[sectindex].org_size;
/* /*
* Pick up previous value at location to be relocated. * Pick up previous value at location to be relocated.
*/ */
valu = getvalu(emit + (relo->or_addr - off), relo->or_type); valu = getvalu(emit + (relo->or_addr - off), relo->or_type);
debug("read relocation from 0x%08x type 0x%x value 0x%08x symbol %d\n", realaddress, relo->or_type, valu, relo->or_nami);
/* /*
* Or_nami is an index in the name table of the considered module. * Or_nami is an index in the name table of the considered module.
@ -595,6 +598,7 @@ long off;
/* /*
* Now put the value back. * Now put the value back.
*/ */
debug("written fixed up relocation to 0x%08x type 0x%x value 0x%08x\n", realaddress, relo->or_type, valu, 0);
putvalu(valu, emit + (relo->or_addr - off), relo->or_type); putvalu(valu, emit + (relo->or_addr - off), relo->or_type);
/* /*