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Do not remove write barriers for stores of old space references in most recent old space allocation.

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BUG=chromium:561449
LOG=n

Review URL: https://codereview.chromium.org/1478113002

Cr-Commit-Position: refs/heads/master@{#32368}
This commit is contained in:
hpayer 2015-11-27 03:58:32 -08:00 committed by Commit bot
parent 8e54a667b2
commit 369778ec55
1 changed files with 0 additions and 9 deletions
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9
src/crankshaft/hydrogen-instructions.h
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@ -5692,15 +5692,6 @@ inline bool ReceiverObjectNeedsWriteBarrier(HValue* object,
if (value->IsConstant() && HConstant::cast(value)->NotInNewSpace()) {
return false;
}
// Stores to old space allocations require no write barriers if the value is
// an old space allocation.
while (value->IsInnerAllocatedObject()) {
value = HInnerAllocatedObject::cast(value)->base_object();
}
if (value->IsAllocate() &&
!HAllocate::cast(value)->IsNewSpaceAllocation()) {
return false;
}
}
return true;
}