Index: src/ia32/code-stubs-ia32.cc |
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc |
index c1701be519c93a1b62c97edfe506ab2095153dba..23d02215148f9ccfadd95e9d14198ce396529876 100644 |
--- a/src/ia32/code-stubs-ia32.cc |
+++ b/src/ia32/code-stubs-ia32.cc |
@@ -2636,67 +2636,6 @@ void NameDictionaryLookupStub::GenerateNegativeLookup(MacroAssembler* masm, |
__ jmp(done); |
} |
- |
-// Probe the name dictionary in the |elements| register. Jump to the |
-// |done| label if a property with the given name is found leaving the |
-// index into the dictionary in |r0|. Jump to the |miss| label |
-// otherwise. |
-void NameDictionaryLookupStub::GeneratePositiveLookup(MacroAssembler* masm, |
- Label* miss, |
- Label* done, |
- Register elements, |
- Register name, |
- Register r0, |
- Register r1) { |
- DCHECK(!elements.is(r0)); |
- DCHECK(!elements.is(r1)); |
- DCHECK(!name.is(r0)); |
- DCHECK(!name.is(r1)); |
- |
- __ AssertName(name); |
- |
- __ mov(r1, FieldOperand(elements, kCapacityOffset)); |
- __ shr(r1, kSmiTagSize); // convert smi to int |
- __ dec(r1); |
- |
- // Generate an unrolled loop that performs a few probes before |
- // giving up. Measurements done on Gmail indicate that 2 probes |
- // cover ~93% of loads from dictionaries. |
- for (int i = 0; i < kInlinedProbes; i++) { |
- // Compute the masked index: (hash + i + i * i) & mask. |
- __ mov(r0, FieldOperand(name, Name::kHashFieldOffset)); |
- __ shr(r0, Name::kHashShift); |
- if (i > 0) { |
- __ add(r0, Immediate(NameDictionary::GetProbeOffset(i))); |
- } |
- __ and_(r0, r1); |
- |
- // Scale the index by multiplying by the entry size. |
- STATIC_ASSERT(NameDictionary::kEntrySize == 3); |
- __ lea(r0, Operand(r0, r0, times_2, 0)); // r0 = r0 * 3 |
- |
- // Check if the key is identical to the name. |
- __ cmp(name, Operand(elements, |
- r0, |
- times_4, |
- kElementsStartOffset - kHeapObjectTag)); |
- __ j(equal, done); |
- } |
- |
- NameDictionaryLookupStub stub(masm->isolate(), elements, r1, r0, |
- POSITIVE_LOOKUP); |
- __ push(name); |
- __ mov(r0, FieldOperand(name, Name::kHashFieldOffset)); |
- __ shr(r0, Name::kHashShift); |
- __ push(r0); |
- __ CallStub(&stub); |
- |
- __ test(r1, r1); |
- __ j(zero, miss); |
- __ jmp(done); |
-} |
- |
- |
void NameDictionaryLookupStub::Generate(MacroAssembler* masm) { |
// This stub overrides SometimesSetsUpAFrame() to return false. That means |
// we cannot call anything that could cause a GC from this stub. |