src/crankshaft/ia32/lithium-codegen-ia32.cc - Issue 2035413003: Revert of Provide a tagged allocation top pointer.

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Unified Diff: src/crankshaft/ia32/lithium-codegen-ia32.cc

Issue 2035413003: Revert of Provide a tagged allocation top pointer. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: Created 4 years, 6 months ago

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Index: src/crankshaft/ia32/lithium-codegen-ia32.cc

diff --git a/src/crankshaft/ia32/lithium-codegen-ia32.cc b/src/crankshaft/ia32/lithium-codegen-ia32.cc

index 2cef17466fba30cce512c7d16ad7d8067468ad9e..5c89cc746f0bfaba6c92e968d562dcb0f96b0222 100644

--- a/src/crankshaft/ia32/lithium-codegen-ia32.cc

+++ b/src/crankshaft/ia32/lithium-codegen-ia32.cc

@@ -4966,7 +4966,9 @@

// undo the allocation.

ExternalReference allocation_top =

AllocationUtils::GetAllocationTopReference(isolate(), allocation_flags);

+ __ sub(eax, Immediate(kHeapObjectTag));

__ mov(Operand::StaticVariable(allocation_top), eax);

+ __ add(eax, Immediate(kHeapObjectTag));

}