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[dev.power64] cmd/gc: handle thechar=='9', disable nilopt() for now

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LGTM=rsc
R=rsc, iant, dave
CC=golang-codereviews
https://golang.org/cl/121630043
This commit is contained in:
Shenghou Ma 2014-08-12 20:57:32 -04:00
parent b1c9a8bce3
commit 5e4989cf0a
2 changed files with 6 additions and 2 deletions
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4
src/cmd/gc/pgen.c
View File

@ -428,7 +428,7 @@ allocauto(Prog* ptxt)
stksize = rnd(stksize, n->type->align); stksize = rnd(stksize, n->type->align);
if(haspointers(n->type)) if(haspointers(n->type))
stkptrsize = stksize; stkptrsize = stksize;
if(thechar == '5') if(thechar == '5' || thechar == '9')
stksize = rnd(stksize, widthptr); stksize = rnd(stksize, widthptr);
if(stksize >= (1ULL<<31)) { if(stksize >= (1ULL<<31)) {
setlineno(curfn); setlineno(curfn);
@ -485,7 +485,7 @@ cgen_checknil(Node *n)
dump("checknil", n); dump("checknil", n);
fatal("bad checknil"); fatal("bad checknil");
} }
if((thechar == '5' && n->op != OREGISTER) || !n->addable || n->op == OLITERAL) { if(((thechar == '5' || thechar == '9') && n->op != OREGISTER) || !n->addable || n->op == OLITERAL) {
regalloc(&reg, types[tptr], n); regalloc(&reg, types[tptr], n);
cgen(n, &reg); cgen(n, &reg);
gins(ACHECKNIL, &reg, N); gins(ACHECKNIL, &reg, N);

4
src/cmd/gc/popt.c
View File

@ -847,6 +847,10 @@ nilopt(Prog *firstp)
Graph *g; Graph *g;
int ncheck, nkill; int ncheck, nkill;
// TODO(minux): nilopt on power64 throw away seemly random segment of code.
if(thechar == '9')
return;
g = flowstart(firstp, sizeof(NilFlow)); g = flowstart(firstp, sizeof(NilFlow));
if(g == nil) if(g == nil)
return; return;