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Unified Diff: src/x64/code-stubs-x64.cc

Issue 197603002: Turn StringLengthStub (used by string wrappers only) into a hydrogen stub. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 9 months ago
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Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 84706fe4207f12dba9aa357073255add92bd0dc5..d1ea51bf8bc3b435acab16642190cf0a04a73cfc 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -166,6 +166,26 @@ void KeyedLoadFieldStub::InitializeInterfaceDescriptor(
}
+void StringLengthStub::InitializeInterfaceDescriptor(
+ Isolate* isolate,
+ CodeStubInterfaceDescriptor* descriptor) {
+ static Register registers[] = { rax, rcx };
+ descriptor->register_param_count_ = 2;
+ descriptor->register_params_ = registers;
+ descriptor->deoptimization_handler_ = NULL;
+}
+
+
+void KeyedStringLengthStub::InitializeInterfaceDescriptor(
+ Isolate* isolate,
+ CodeStubInterfaceDescriptor* descriptor) {
+ static Register registers[] = { rdx, rax };
+ descriptor->register_param_count_ = 2;
+ descriptor->register_params_ = registers;
+ descriptor->deoptimization_handler_ = NULL;
+}
+
+
void KeyedStoreFastElementStub::InitializeInterfaceDescriptor(
Isolate* isolate,
CodeStubInterfaceDescriptor* descriptor) {
@@ -913,35 +933,6 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
}
-void StringLengthStub::Generate(MacroAssembler* masm) {
- Label miss;
- Register receiver;
- if (kind() == Code::KEYED_LOAD_IC) {
- // ----------- S t a t e -------------
- // -- rax : key
- // -- rdx : receiver
- // -- rsp[0] : return address
- // -----------------------------------
- __ Cmp(rax, masm->isolate()->factory()->length_string());
- __ j(not_equal, &miss);
- receiver = rdx;
- } else {
- ASSERT(kind() == Code::LOAD_IC);
- // ----------- S t a t e -------------
- // -- rax : receiver
- // -- rcx : name
- // -- rsp[0] : return address
- // -----------------------------------
- receiver = rax;
- }
-
- StubCompiler::GenerateLoadStringLength(masm, receiver, r8, r9, &miss);
- __ bind(&miss);
- StubCompiler::TailCallBuiltin(
- masm, BaseLoadStoreStubCompiler::MissBuiltin(kind()));
-}
-
-
void StoreArrayLengthStub::Generate(MacroAssembler* masm) {
// ----------- S t a t e -------------
// -- rax : value
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