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

Issue 2073018: Reverting r4703. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 10 years, 7 months ago
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Index: src/ia32/stub-cache-ia32.cc
===================================================================
--- src/ia32/stub-cache-ia32.cc (revision 4703)
+++ src/ia32/stub-cache-ia32.cc (working copy)
@@ -1173,7 +1173,7 @@
__ j(not_equal, &miss);
if (argc == 1) { // Otherwise fall through to call builtin.
- Label call_builtin, exit, with_write_barrier, attempt_to_grow_elements;
+ Label call_builtin, exit, with_rset_update, attempt_to_grow_elements;
// Get the array's length into eax and calculate new length.
__ mov(eax, FieldOperand(edx, JSArray::kLengthOffset));
@@ -1183,6 +1183,7 @@
// 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));
@@ -1200,16 +1201,17 @@
// Check if value is a smi.
__ test(ecx, Immediate(kSmiTagMask));
- __ j(not_zero, &with_write_barrier);
+ __ j(not_zero, &with_rset_update);
__ bind(&exit);
__ ret((argc + 1) * kPointerSize);
- __ bind(&with_write_barrier);
+ __ bind(&with_rset_update);
__ InNewSpace(ebx, ecx, equal, &exit);
- __ RecordWriteHelper(ebx, edx, ecx);
+ RecordWriteStub stub(ebx, edx, ecx);
+ __ CallStub(&stub);
__ ret((argc + 1) * kPointerSize);
__ bind(&attempt_to_grow_elements);
@@ -1249,10 +1251,10 @@
// Increment element's and array's sizes.
__ add(FieldOperand(ebx, FixedArray::kLengthOffset),
- Immediate(Smi::FromInt(kAllocationDelta)));
+ Immediate(kAllocationDelta));
__ mov(FieldOperand(edx, JSArray::kLengthOffset), eax);
- // Elements are in new space, so write barrier is not required.
+ // Elements are in new space, so no remembered set updates are necessary.
__ ret((argc + 1) * kPointerSize);
__ bind(&call_builtin);
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