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runtime: mark strings without going through an intermediate buffer

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R=rsc
CC=golang-dev
https://golang.org/cl/7949043
This commit is contained in:
Jan Ziak 2013-03-21 19:00:02 +01:00
parent e95c41f30b
commit ec8caf696a
1 changed files with 4 additions and 3 deletions
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7
src/pkg/runtime/mgc0.c
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@ -740,8 +740,9 @@ scanblock(Workbuf *wbuf, Obj *wp, uintptr nobj, bool keepworking)
case GC_STRING:
obj = *(void**)(stack_top.b + pc[1]);
markonly(obj);
pc += 2;
break;
continue;
case GC_EFACE:
eface = (Eface*)(stack_top.b + pc[1]);
@ -804,9 +805,9 @@ scanblock(Workbuf *wbuf, Obj *wp, uintptr nobj, bool keepworking)
break;
case GC_DEFAULT_PTR:
while((i = stack_top.b) <= end_b) {
while(stack_top.b <= end_b) {
obj = *(byte**)stack_top.b;
stack_top.b += PtrSize;
obj = *(byte**)i;
if(obj >= arena_start && obj < arena_used) {
*ptrbufpos++ = (PtrTarget){obj, 0};
if(ptrbufpos == ptrbuf_end)