Revert 13105: "Enable stub generation using Hydrogen/Lithium."

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index c7d4c805d0c87824ecd1cbdb23afc49dfa710f02..276c87ebd00a227f162ed93cf81770ddcce05830 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -48,6 +48,20 @@ bool CodeStub::FindCodeInCache(Code** code_out, Isolate* isolate) {
 }
 
 
+void CodeStub::GenerateCode(MacroAssembler* masm) {
+  // Update the static counter each time a new code stub is generated.
+  masm->isolate()->counters()->code_stubs()->Increment();
+
+  // Nested stubs are not allowed for leaves.
+  AllowStubCallsScope allow_scope(masm, false);
+
+  // Generate the code for the stub.
+  masm->set_generating_stub(true);
+  NoCurrentFrameScope scope(masm);
+  Generate(masm);
+}
+
+
 SmartArrayPointer<const char> CodeStub::GetName() {
   char buffer[100];
   NoAllocationStringAllocator allocator(buffer,
@@ -58,7 +72,8 @@ SmartArrayPointer<const char> CodeStub::GetName() {
 }
 
 
-void CodeStub::RecordCodeGeneration(Code* code, Isolate* isolate) {
+void CodeStub::RecordCodeGeneration(Code* code, MacroAssembler* masm) {
+  Isolate* isolate = masm->isolate();
   SmartArrayPointer<const char> name = GetName();
   PROFILE(isolate, CodeCreateEvent(Logger::STUB_TAG, code, *name));
   GDBJIT(AddCode(GDBJITInterface::STUB, *name, code));
@@ -72,39 +87,6 @@ int CodeStub::GetCodeKind() {
 }
 
 
-Handle<Code> PlatformCodeStub::GenerateCode() {
-  Isolate* isolate = Isolate::Current();
-  Factory* factory = isolate->factory();
-
-  // Generate the new code.
-  MacroAssembler masm(isolate, NULL, 256);
-
-  {
-    // Update the static counter each time a new code stub is generated.
-    isolate->counters()->code_stubs()->Increment();
-
-    // Nested stubs are not allowed for leaves.
-    AllowStubCallsScope allow_scope(&masm, false);
-
-    // Generate the code for the stub.
-    masm.set_generating_stub(true);
-    NoCurrentFrameScope scope(&masm);
-    Generate(&masm);
-  }
-
-  // Create the code object.
-  CodeDesc desc;
-  masm.GetCode(&desc);
-
-  // Copy the generated code into a heap object.
-  Code::Flags flags = Code::ComputeFlags(
-      static_cast<Code::Kind>(GetCodeKind()), GetICState());
-  Handle<Code> new_object = factory->NewCode(
-      desc, flags, masm.CodeObject(), NeedsImmovableCode());
-  return new_object;
-}
-
-
 Handle<Code> CodeStub::GetCode() {
   Isolate* isolate = Isolate::Current();
   Factory* factory = isolate->factory();
@@ -120,10 +102,23 @@ Handle<Code> CodeStub::GetCode() {
   {
     HandleScope scope(isolate);
 
-    Handle<Code> new_object = GenerateCode();
+    // Generate the new code.
+    MacroAssembler masm(isolate, NULL, 256);
+    GenerateCode(&masm);
+
+    // Create the code object.
+    CodeDesc desc;
+    masm.GetCode(&desc);
+
+    // Copy the generated code into a heap object.
+    Code::Flags flags = Code::ComputeFlags(
+        static_cast<Code::Kind>(GetCodeKind()),
+        GetICState());
+    Handle<Code> new_object = factory->NewCode(
+        desc, flags, masm.CodeObject(), NeedsImmovableCode());
     new_object->set_major_key(MajorKey());
     FinishCode(new_object);
-    RecordCodeGeneration(*new_object, isolate);
+    RecordCodeGeneration(*new_object, &masm);
 
 #ifdef ENABLE_DISASSEMBLER
     if (FLAG_print_code_stubs) {
@@ -421,8 +416,36 @@ void JSEntryStub::FinishCode(Handle<Code> code) {
 }
 
 
-void KeyedLoadDictionaryElementStub::Generate(MacroAssembler* masm) {
-  KeyedLoadStubCompiler::GenerateLoadDictionaryElement(masm);
+void KeyedLoadElementStub::Generate(MacroAssembler* masm) {
+  switch (elements_kind_) {
+    case FAST_ELEMENTS:
+    case FAST_HOLEY_ELEMENTS:
+    case FAST_SMI_ELEMENTS:
+    case FAST_HOLEY_SMI_ELEMENTS:
+      KeyedLoadStubCompiler::GenerateLoadFastElement(masm);
+      break;
+    case FAST_DOUBLE_ELEMENTS:
+    case FAST_HOLEY_DOUBLE_ELEMENTS:
+      KeyedLoadStubCompiler::GenerateLoadFastDoubleElement(masm);
+      break;
+    case EXTERNAL_BYTE_ELEMENTS:
+    case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
+    case EXTERNAL_SHORT_ELEMENTS:
+    case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
+    case EXTERNAL_INT_ELEMENTS:
+    case EXTERNAL_UNSIGNED_INT_ELEMENTS:
+    case EXTERNAL_FLOAT_ELEMENTS:
+    case EXTERNAL_DOUBLE_ELEMENTS:
+    case EXTERNAL_PIXEL_ELEMENTS:
+      KeyedLoadStubCompiler::GenerateLoadExternalArray(masm, elements_kind_);
+      break;
+    case DICTIONARY_ELEMENTS:
+      KeyedLoadStubCompiler::GenerateLoadDictionaryElement(masm);
+      break;
+    case NON_STRICT_ARGUMENTS_ELEMENTS:
+      UNREACHABLE();
+      break;
+  }
 }