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

Issue 144913003: Reland (and fix) "Add hydrogen support for ArrayPop, and remove the handwritten call stubs." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 11 months ago
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Index: src/mips/stub-cache-mips.cc
diff --git a/src/mips/stub-cache-mips.cc b/src/mips/stub-cache-mips.cc
index e5cb2001c580ff905899f79b79b3a90e885a1cdd..23ef6ece97ea53c6463a48e40c07286fb37b250e 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -1556,78 +1556,6 @@ Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object,
}
-Handle<Code> CallStubCompiler::CompileArrayPopCall(
- Handle<Object> object,
- Handle<JSObject> holder,
- Handle<Cell> cell,
- Handle<JSFunction> function,
- Handle<String> name,
- Code::StubType type) {
- // If object is not an array or is observed or sealed, bail out to regular
- // call.
- if (!object->IsJSArray() ||
- !cell.is_null() ||
- Handle<JSArray>::cast(object)->map()->is_observed() ||
- !Handle<JSArray>::cast(object)->map()->is_extensible()) {
- return Handle<Code>::null();
- }
-
- Label miss, return_undefined, call_builtin;
- Register receiver = a0;
- Register scratch = a1;
- Register elements = a3;
- HandlerFrontendHeader(object, holder, name, RECEIVER_MAP_CHECK, &miss);
-
- // Get the elements array of the object.
- __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset));
-
- // Check that the elements are in fast mode and writable.
- __ CheckMap(elements,
- scratch,
- Heap::kFixedArrayMapRootIndex,
- &call_builtin,
- DONT_DO_SMI_CHECK);
-
- // Get the array's length into t0 and calculate new length.
- __ lw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset));
- __ Subu(t0, t0, Operand(Smi::FromInt(1)));
- __ Branch(&return_undefined, lt, t0, Operand(zero_reg));
-
- // Get the last element.
- __ LoadRoot(t2, Heap::kTheHoleValueRootIndex);
- STATIC_ASSERT(kSmiTagSize == 1);
- STATIC_ASSERT(kSmiTag == 0);
- // We can't address the last element in one operation. Compute the more
- // expensive shift first, and use an offset later on.
- __ sll(t1, t0, kPointerSizeLog2 - kSmiTagSize);
- __ Addu(elements, elements, t1);
- __ lw(scratch, FieldMemOperand(elements, FixedArray::kHeaderSize));
- __ Branch(&call_builtin, eq, scratch, Operand(t2));
-
- // Set the array's length.
- __ sw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset));
-
- // Fill with the hole.
- __ sw(t2, FieldMemOperand(elements, FixedArray::kHeaderSize));
- const int argc = arguments().immediate();
- __ mov(v0, scratch);
- __ DropAndRet(argc + 1);
-
- __ bind(&return_undefined);
- __ LoadRoot(v0, Heap::kUndefinedValueRootIndex);
- __ DropAndRet(argc + 1);
-
- __ bind(&call_builtin);
- __ TailCallExternalReference(
- ExternalReference(Builtins::c_ArrayPop, isolate()), argc + 1, 1);
-
- HandlerFrontendFooter(&miss);
-
- // Return the generated code.
- return GetCode(type, name);
-}
-
-
Handle<Code> CallStubCompiler::CompileFastApiCall(
const CallOptimization& optimization,
Handle<Object> object,
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