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Unified Diff: src/ia32/stub-cache-ia32.cc

Issue 2255004: Cardmarking writebarrier. (Closed)
Patch Set: Created 10 years, 7 months ago
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Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index 8a50682001caac829dbf2c9325a7bcbdb3d25624..fdaf091974008bd3a82666de9f173b729bc5f62c 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1198,7 +1198,7 @@ Object* CallStubCompiler::CompileArrayPushCall(Object* object,
__ j(not_equal, &miss);
if (argc == 1) { // Otherwise fall through to call builtin.
- Label call_builtin, exit, with_rset_update, attempt_to_grow_elements;
+ Label call_builtin, exit, with_write_barrier, attempt_to_grow_elements;
// Get the array's length into eax and calculate new length.
__ mov(eax, FieldOperand(edx, JSArray::kLengthOffset));
@@ -1208,7 +1208,6 @@ Object* CallStubCompiler::CompileArrayPushCall(Object* object,
// Get the element's length into ecx.
__ mov(ecx, FieldOperand(ebx, FixedArray::kLengthOffset));
- __ SmiTag(ecx);
// Check if we could survive without allocation.
__ cmp(eax, Operand(ecx));
@@ -1226,17 +1225,16 @@ Object* CallStubCompiler::CompileArrayPushCall(Object* object,
// Check if value is a smi.
__ test(ecx, Immediate(kSmiTagMask));
- __ j(not_zero, &with_rset_update);
+ __ j(not_zero, &with_write_barrier);
__ bind(&exit);
__ ret((argc + 1) * kPointerSize);
- __ bind(&with_rset_update);
+ __ bind(&with_write_barrier);
__ InNewSpace(ebx, ecx, equal, &exit);
- RecordWriteStub stub(ebx, edx, ecx);
- __ CallStub(&stub);
+ __ RecordWriteHelper(ebx, edx, ecx);
__ ret((argc + 1) * kPointerSize);
__ bind(&attempt_to_grow_elements);
@@ -1276,10 +1274,10 @@ Object* CallStubCompiler::CompileArrayPushCall(Object* object,
// Increment element's and array's sizes.
__ add(FieldOperand(ebx, FixedArray::kLengthOffset),
- Immediate(kAllocationDelta));
+ Immediate(Smi::FromInt(kAllocationDelta)));
__ mov(FieldOperand(edx, JSArray::kLengthOffset), eax);
- // Elements are in new space, so no remembered set updates are necessary.
+ // Elements are in new space, so write barrier is not required.
__ ret((argc + 1) * kPointerSize);
__ bind(&call_builtin);
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