Implement target cache for constructor calls.

src/arm/builtins-arm.cc

Index: src/arm/builtins-arm.cc
diff --git a/src/arm/builtins-arm.cc b/src/arm/builtins-arm.cc
index 2a650a44a5ad0a973bb2f1ab2eaf6680becf4f57..e3f395fa2a1c2a564b04e9b648203dbfeb2a674f 100644
--- a/src/arm/builtins-arm.cc
+++ b/src/arm/builtins-arm.cc
@@ -667,7 +667,9 @@ void Builtins::Generate_StringConstructCode(MacroAssembler* masm) {
 }
 
 
-void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
+static void Generate_JSConstructStubHelper(MacroAssembler* masm,
+                                           bool is_api_function,
+                                           bool count_constructions) {
   // ----------- S t a t e -------------
   //  -- r0     : number of arguments
   //  -- r1     : constructor function
@@ -675,42 +677,6 @@ void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
   //  -- sp[...]: constructor arguments
   // -----------------------------------
 
-  Label slow, non_function_call;
-  // Check that the function is not a smi.
-  __ JumpIfSmi(r1, &non_function_call);
-  // Check that the function is a JSFunction.
-  __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE);
-  __ b(ne, &slow);
-
-  // Jump to the function-specific construct stub.
-  __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
-  __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kConstructStubOffset));
-  __ add(pc, r2, Operand(Code::kHeaderSize - kHeapObjectTag));
-
-  // r0: number of arguments
-  // r1: called object
-  // r2: object type
-  Label do_call;
-  __ bind(&slow);
-  __ cmp(r2, Operand(JS_FUNCTION_PROXY_TYPE));
-  __ b(ne, &non_function_call);
-  __ GetBuiltinEntry(r3, Builtins::CALL_FUNCTION_PROXY_AS_CONSTRUCTOR);
-  __ jmp(&do_call);
-
-  __ bind(&non_function_call);
-  __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR);
-  __ bind(&do_call);
-  // Set expected number of arguments to zero (not changing r0).
-  __ mov(r2, Operand(0, RelocInfo::NONE));
-  __ SetCallKind(r5, CALL_AS_METHOD);
-  __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(),
-          RelocInfo::CODE_TARGET);
-}
-
-
-static void Generate_JSConstructStubHelper(MacroAssembler* masm,
-                                           bool is_api_function,
-                                           bool count_constructions) {
   // Should never count constructions for api objects.
   ASSERT(!is_api_function || !count_constructions);
 
@@ -1117,7 +1083,8 @@ static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm,
     // Invoke the code and pass argc as r0.
     __ mov(r0, Operand(r3));
     if (is_construct) {
-      __ Call(masm->isolate()->builtins()->JSConstructCall());
+      CallConstructStub stub(NO_CALL_FUNCTION_FLAGS);
+      __ CallStub(&stub);
     } else {
       ParameterCount actual(r0);
       __ InvokeFunction(r1, actual, CALL_FUNCTION,