[builtins] Unify the various versions of [[Call]] with a Call builtin.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index e32b1155ae70589e6f8cad5b354e663d4d71f8da..71ad6475424cd6d562523ebd6004480875f8a23c 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -2039,33 +2039,9 @@ static void EmitContinueIfStrictOrNative(MacroAssembler* masm, Label* cont) {
 }
 
 
-static void EmitSlowCase(Isolate* isolate,
-                         MacroAssembler* masm,
-                         int argc,
-                         Label* non_function) {
-  // Check for function proxy.
-  __ CmpInstanceType(ecx, JS_FUNCTION_PROXY_TYPE);
-  __ j(not_equal, non_function);
-  __ pop(ecx);
-  __ push(edi);  // put proxy as additional argument under return address
-  __ push(ecx);
-  __ Move(eax, Immediate(argc + 1));
-  __ Move(ebx, Immediate(0));
-  __ GetBuiltinEntry(edx, Context::CALL_FUNCTION_PROXY_BUILTIN_INDEX);
-  {
-    Handle<Code> adaptor = isolate->builtins()->ArgumentsAdaptorTrampoline();
-    __ jmp(adaptor, RelocInfo::CODE_TARGET);
-  }
-
-  // CALL_NON_FUNCTION expects the non-function callee as receiver (instead
-  // of the original receiver from the call site).
-  __ bind(non_function);
-  __ mov(Operand(esp, (argc + 1) * kPointerSize), edi);
-  __ Move(eax, Immediate(argc));
-  __ Move(ebx, Immediate(0));
-  __ GetBuiltinEntry(edx, Context::CALL_NON_FUNCTION_BUILTIN_INDEX);
-  Handle<Code> adaptor = isolate->builtins()->ArgumentsAdaptorTrampoline();
-  __ jmp(adaptor, RelocInfo::CODE_TARGET);
+static void EmitSlowCase(Isolate* isolate, MacroAssembler* masm, int argc) {
+  __ Set(eax, argc);
+  __ Jump(masm->isolate()->builtins()->Invoke(), RelocInfo::CODE_TARGET);
 }
 
 
@@ -2086,11 +2062,11 @@ static void CallFunctionNoFeedback(MacroAssembler* masm,
                                    int argc, bool needs_checks,
                                    bool call_as_method) {
   // edi : the function to call
-  Label slow, non_function, wrap, cont;
+  Label slow, wrap, cont;
 
   if (needs_checks) {
     // Check that the function really is a JavaScript function.
-    __ JumpIfSmi(edi, &non_function);
+    __ JumpIfSmi(edi, &slow);
 
     // Goto slow case if we do not have a function.
     __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
@@ -2125,8 +2101,7 @@ static void CallFunctionNoFeedback(MacroAssembler* masm,
   if (needs_checks) {
     // Slow-case: Non-function called.
     __ bind(&slow);
-    // (non_function is bound in EmitSlowCase)
-    EmitSlowCase(masm->isolate(), masm, argc, &non_function);
+    EmitSlowCase(masm->isolate(), masm, argc);
   }
 
   if (call_as_method) {
@@ -2290,7 +2265,7 @@ void CallICStub::Generate(MacroAssembler* masm) {
   const int generic_offset =
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kGenericCountIndex);
   Label extra_checks_or_miss, slow_start;
-  Label slow, non_function, wrap, cont;
+  Label slow, wrap, cont;
   Label have_js_function;
   int argc = arg_count();
   ParameterCount actual(argc);
@@ -2343,7 +2318,7 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ InvokeFunction(edi, actual, JUMP_FUNCTION, NullCallWrapper());
 
   __ bind(&slow);
-  EmitSlowCase(isolate, masm, argc, &non_function);
+  EmitSlowCase(isolate, masm, argc);
 
   if (CallAsMethod()) {
     __ bind(&wrap);
@@ -2424,7 +2399,7 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ bind(&slow_start);
 
   // Check that the function really is a JavaScript function.
-  __ JumpIfSmi(edi, &non_function);
+  __ JumpIfSmi(edi, &slow);
 
   // Goto slow case if we do not have a function.
   __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);