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Fix assertion failure when VM_CHECK_MODE

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Some VM frames (dummy and top pushed by `rb_vm_call_cfunc`) has
iseq but has no pc.
This commit is contained in:
Nobuyoshi Nakada 2019-08-01 20:08:22 +09:00
parent 2eec526053
commit 8b162ce9d1
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1 changed files with 1 additions and 1 deletions
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2
gc.c
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@ -1926,7 +1926,7 @@ static void
gc_event_hook_body(rb_execution_context_t *ec, rb_objspace_t *objspace, const rb_event_flag_t event, VALUE data)
{
const VALUE *pc = ec->cfp->pc;
if (VM_FRAME_RUBYFRAME_P(ec->cfp)) {
if (pc && VM_FRAME_RUBYFRAME_P(ec->cfp)) {
/* increment PC because source line is calculated with PC-1 */
ec->cfp->pc++;
}