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Unified Diff: src/arm/code-stubs-arm.cc

Issue 196653015: Fixed spec violation of storing to length of a frozen object. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Review notes applied Created 6 years, 9 months ago
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Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 81da4658154f791e0915508b6aeafefa3b3932a4..ca8e001af8d0b3e405b4ef46839b2367b8c48677 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -2120,77 +2120,6 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
}
-void StoreArrayLengthStub::Generate(MacroAssembler* masm) {
- // This accepts as a receiver anything JSArray::SetElementsLength accepts
- // (currently anything except for external arrays which means anything with
- // elements of FixedArray type). Value must be a number, but only smis are
- // accepted as the most common case.
- Label miss;
-
- Register receiver;
- Register value;
- if (kind() == Code::KEYED_STORE_IC) {
- // ----------- S t a t e -------------
- // -- lr : return address
- // -- r0 : value
- // -- r1 : key
- // -- r2 : receiver
- // -----------------------------------
- __ cmp(r1, Operand(masm->isolate()->factory()->length_string()));
- __ b(ne, &miss);
- receiver = r2;
- value = r0;
- } else {
- ASSERT(kind() == Code::STORE_IC);
- // ----------- S t a t e -------------
- // -- lr : return address
- // -- r0 : value
- // -- r1 : receiver
- // -- r2 : key
- // -----------------------------------
- receiver = r1;
- value = r0;
- }
- Register scratch = r3;
-
- // Check that the receiver isn't a smi.
- __ JumpIfSmi(receiver, &miss);
-
- // Check that the object is a JS array.
- __ CompareObjectType(receiver, scratch, scratch, JS_ARRAY_TYPE);
- __ b(ne, &miss);
-
- // Check that elements are FixedArray.
- // We rely on StoreIC_ArrayLength below to deal with all types of
- // fast elements (including COW).
- __ ldr(scratch, FieldMemOperand(receiver, JSArray::kElementsOffset));
- __ CompareObjectType(scratch, scratch, scratch, FIXED_ARRAY_TYPE);
- __ b(ne, &miss);
-
- // Check that the array has fast properties, otherwise the length
- // property might have been redefined.
- __ ldr(scratch, FieldMemOperand(receiver, JSArray::kPropertiesOffset));
- __ ldr(scratch, FieldMemOperand(scratch, FixedArray::kMapOffset));
- __ CompareRoot(scratch, Heap::kHashTableMapRootIndex);
- __ b(eq, &miss);
-
- // Check that value is a smi.
- __ JumpIfNotSmi(value, &miss);
-
- // Prepare tail call to StoreIC_ArrayLength.
- __ Push(receiver, value);
-
- ExternalReference ref =
- ExternalReference(IC_Utility(IC::kStoreIC_ArrayLength), masm->isolate());
- __ TailCallExternalReference(ref, 2, 1);
-
- __ bind(&miss);
-
- StubCompiler::TailCallBuiltin(
- masm, BaseLoadStoreStubCompiler::MissBuiltin(kind()));
-}
-
-
Register InstanceofStub::left() { return r0; }
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