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cmd/5c, cmd/5a, cmd/5l: ARM support for PREFETCH built-in 

R=rsc
CC=golang-dev
https://golang.org/cl/6174049
This commit is contained in:
Shenghou Ma 2012-05-04 03:24:14 +08:00
parent df64448932
commit 278d4a583d
7 changed files with 306 additions and 287 deletions
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2
src/cmd/5a/a.y
View File

@ -304,7 +304,7 @@ inst:
/*
* PLD
*/
| LTYPEPLD reg
| LTYPEPLD oreg
{
outcode($1, Always, &$2, NREG, &nullgen);
}

565
src/cmd/5a/y.tab.c
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File diff suppressed because it is too large Load Diff

1
src/cmd/5c/peep.c
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@ -1067,6 +1067,7 @@ copyu(Prog *p, Adr *v, Adr *s)
case ABLT:
case ABGT:
case ABLE:
case APLD:
if(s != A) {
if(copysub(&p->from, v, s, 1))
return 1;

8
src/cmd/5c/reg.c
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@ -190,6 +190,14 @@ regopt(Prog *p)
r->set.b[z] |= bit.b[z];
break;
/*
* right side read
*/
case APLD:
for(z=0; z<BITS; z++)
r->use2.b[z] |= bit.b[z];
break;
/*
* funny
*/

8
src/cmd/5c/txt.c
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@ -1197,7 +1197,13 @@ gpseudo(int a, Sym *s, Node *n)
void
gprefetch(Node *n)
{
// nothing
Node n1;
regalloc(&n1, n, Z);
gmove(n, &n1);
n1.op = OINDREG;
gins(APLD, &n1, Z);
regfree(&n1);
}
int

7
src/cmd/5l/asm.c
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@ -1429,9 +1429,14 @@ if(debug['G']) print("%ux: %s: arm %d\n", (uint32)(p->pc), p->from.sym->name, p-
break;
o2 = oshr(p->from.reg, 0, REGTMP, p->scond);
break;
case 95: /* PLD reg */
case 95: /* PLD off(reg) */
o1 = 0xf5d0f000;
o1 |= p->from.reg << 16;
if(p->from.offset < 0) {
o1 &= ~(1 << 23);
o1 |= (-p->from.offset) & 0xfff;
} else
o1 |= p->from.offset & 0xfff;
}
out[0] = o1;

2
src/cmd/5l/optab.c
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@ -232,7 +232,7 @@ Optab optab[] =
{ ALDREXD, C_SOREG,C_NONE, C_REG, 91, 4, 0 },
{ ASTREXD, C_SOREG,C_REG, C_REG, 92, 4, 0 },
{ APLD, C_REG, C_NONE, C_NONE, 95, 4, 0 },
{ APLD, C_SOREG,C_NONE, C_NONE, 95, 4, 0 },
{ AXXX, C_NONE, C_NONE, C_NONE, 0, 4, 0 },
};