Reduce the size of VM stack clear window; ref
MODIFY
src/vm.c
src/vm.c
@@ -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;

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