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Reduce the size of VM stack clear window; ref #3676

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2017-05-31 06:39:12 +09:00
parent 2599c1932e
commit acd3ac62a8
1 changed files with 3 additions and 5 deletions
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src/vm.c
+3 -5
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@@ -851,17 +851,15 @@ mrb_vm_run(mrb_state *mrb, struct RProc *proc, mrb_value self, unsigned int stac
mrb_value result;
struct mrb_context *c = mrb->c;
int cioff = c->ci - c->cibase;
int nregs = irep->nregs;
mrb_value *stk;
unsigned int nregs = irep->nregs;
if (!c->stack) {
stack_init(mrb);
}
if (stack_keep > nregs)
nregs = stack_keep;
stk = c->stack + stack_keep;
if (stk < c->stend) {
stack_clear(stk, c->stend - stk);
if (nregs > stack_keep) {
stack_clear(c->stack + stack_keep, nregs - stack_keep);
}
stack_extend(mrb, nregs);
c->stack[0] = self;