src/x64/lithium-codegen-x64.cc - Issue 180803005: HAllocate should never generate allocation code if the requested size does not fit into page. Regre…

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

Issue 180803005: HAllocate should never generate allocation code if the requested size does not fit into page. Regre… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 6 years, 10 months ago

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Index: src/x64/lithium-codegen-x64.cc

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

index 72091c3e4d371e6258e83317f2177b306c25cab3..082a480ee85937092785c2f8fcaf5a4c42fd25ef 100644

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

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

@@ -5084,7 +5084,11 @@ void LCodeGen::DoAllocate(LAllocate* instr) {

if (instr->size()->IsConstantOperand()) {

int32_t size = ToInteger32(LConstantOperand::cast(instr->size()));

- __ Allocate(size, result, temp, no_reg, deferred->entry(), flags);

+ if (size <= Page::kMaxRegularHeapObjectSize) {

+ __ Allocate(size, result, temp, no_reg, deferred->entry(), flags);

+ } else {

+ __ jmp(deferred->entry());

+ }

} else {

__ Allocate(size, result, temp, no_reg, deferred->entry(), flags);

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