src/crankshaft/x64/lithium-codegen-x64.cc - Issue 2035413003: Revert of Provide a tagged allocation top pointer.

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Unified Diff: src/crankshaft/x64/lithium-codegen-x64.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/x64/lithium-codegen-x64.cc

diff --git a/src/crankshaft/x64/lithium-codegen-x64.cc b/src/crankshaft/x64/lithium-codegen-x64.cc

index 0024da809596965b66717785becca23953693092..67776e4ca9a6b25ad74d5b36d55f4f5c6e0850bb 100644

--- a/src/crankshaft/x64/lithium-codegen-x64.cc

+++ b/src/crankshaft/x64/lithium-codegen-x64.cc

@@ -5260,7 +5260,9 @@

// undo the allocation.

ExternalReference allocation_top =

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

+ __ subp(rax, Immediate(kHeapObjectTag));

__ Store(allocation_top, rax);

+ __ addp(rax, Immediate(kHeapObjectTag));

}

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