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fix defer. gave up on unified code for defer and go for now.

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R=rsc
http://go/go-review/1014010
This commit is contained in:
Kai Backman 2009-10-26 08:02:19 -07:00
parent dfeceddd3f
commit 5cc32a5348
1 changed files with 49 additions and 5 deletions
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54
src/cmd/5g/ggen.c
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@ -123,8 +123,8 @@ ginscall(Node *f, int proc)
afunclit(&p->to);
break;
// TODO(kaib): unify newproc and defer if you can figure out how not to break things
case 1: // call in new proc (go)
case 2: // defered call (defer)
regalloc(&r, types[tptr], N);
p = gins(AMOVW, N, &r);
p->from.type = D_OREG;
@ -154,10 +154,7 @@ ginscall(Node *f, int proc)
p->to.offset = 4;
regfree(&r);
if(proc == 1)
ginscall(newproc, 0);
else
ginscall(deferproc, 0);
ginscall(newproc, 0);
regalloc(&r, types[tptr], N);
p = gins(AMOVW, N, &r);
@ -172,6 +169,53 @@ ginscall(Node *f, int proc)
p->scond |= C_WBIT;
regfree(&r);
break;
case 2: // defered call (defer)
regalloc(&r, types[tptr], N);
p = gins(AMOVW, N, &r);
p->from.type = D_OREG;
p->from.reg = REGSP;
p = gins(AMOVW, &r, N);
p->to.type = D_OREG;
p->to.reg = REGSP;
p->to.offset = -8;
p->scond |= C_WBIT;
memset(&n1, 0, sizeof n1);
n1.op = OADDR;
n1.left = f;
gins(AMOVW, &n1, &r);
p = gins(AMOVW, &r, N);
p->to.type = D_OREG;
p->to.reg = REGSP;
p->to.offset = 8;
nodconst(&con, types[TINT32], argsize(f->type));
gins(AMOVW, &con, &r);
p = gins(AMOVW, &r, N);
p->to.type = D_OREG;
p->to.reg = REGSP;
p->to.offset = 4;
regfree(&r);
ginscall(deferproc, 0);
regalloc(&r, types[tptr], N);
p = gins(AMOVW, N, &r);
p->from.type = D_OREG;
p->from.reg = REGSP;
p->from.offset = 0;
p = gins(AMOVW, &r, N);
p->to.type = D_OREG;
p->to.reg = REGSP;
p->to.offset = 8;
p->scond |= C_WBIT;
regfree(&r);
break;
}
}