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Bug 832065 - don't use resume point to iterate over phis (r=sstangl)

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--HG--
extra : rebase_source : 0c54df0ad7fb5daba820efaa49a1d8eb7e355104
This commit is contained in:
Luke Wagner 2012-11-28 15:19:39 -08:00
parent eee3c125d4
commit 43bd40a839
1 changed files with 5 additions and 4 deletions
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9
js/src/ion/MIRGraph.cpp
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@ -654,9 +654,9 @@ MBasicBlock::setBackedge(MBasicBlock *pred)
JS_ASSERT(kind_ == PENDING_LOOP_HEADER);
// Add exit definitions to each corresponding phi at the entry.
for (uint32_t i = 0; i < pred->stackDepth(); i++) {
MPhi *entryDef = entryResumePoint()->getOperand(i)->toPhi();
MDefinition *exitDef = pred->slots_[i];
for (MPhiIterator phi = phisBegin(); phi != phisEnd(); phi++) {
MPhi *entryDef = *phi;
MDefinition *exitDef = pred->slots_[entryDef->slot()];
// Assert that we already placed phis for each slot.
JS_ASSERT(entryDef->block() == this);
@ -675,7 +675,8 @@ MBasicBlock::setBackedge(MBasicBlock *pred)
if (!entryDef->addInput(exitDef))
return false;
setSlot(i, entryDef);
JS_ASSERT(entryDef->slot() < pred->stackDepth());
setSlot(entryDef->slot(), entryDef);
}
// We are now a loop header proper