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

src/ia32/code-stubs-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 2021 matching lines @@
             1 << SharedFunctionInfo::kStrictModeBitWithinByte);
   __ j(not_equal, cont);
 
   // Do not transform the receiver for natives (shared already in ecx).
   __ test_b(FieldOperand(ecx, SharedFunctionInfo::kNativeByteOffset),
             1 << SharedFunctionInfo::kNativeBitWithinByte);
   __ j(not_equal, 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()->Call(), RelocInfo::CODE_TARGET);
 }
 
 
 static void EmitWrapCase(MacroAssembler* masm, int argc, Label* cont) {
   // Wrap the receiver and patch it back onto the stack.
   { FrameScope frame_scope(masm, StackFrame::INTERNAL);
     __ push(edi);
     ToObjectStub stub(masm->isolate());
     __ CallStub(&stub);
     __ pop(edi);
   }
   __ mov(Operand(esp, (argc + 1) * kPointerSize), eax);
   __ jmp(cont);
 }
 
 
 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);
     __ j(not_equal, &slow);
   }
 
   // Fast-case: Just invoke the function.
   ParameterCount actual(argc);
 
   if (call_as_method) {
@@ skipping 14 matching lines @@
     }
 
     __ bind(&cont);
   }
 
   __ InvokeFunction(edi, actual, JUMP_FUNCTION, NullCallWrapper());
 
   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) {
     __ bind(&wrap);
     EmitWrapCase(masm, argc, &cont);
   }
 }
 
 
 void CallFunctionStub::Generate(MacroAssembler* masm) {
@@ skipping 123 matching lines @@
 
   __ mov(ebx, ecx);
   __ mov(edx, edi);
   ArrayConstructorStub stub(masm->isolate(), arg_count());
   __ TailCallStub(&stub);
 
   __ bind(&miss);
   GenerateMiss(masm);
 
   // The slow case, we need this no matter what to complete a call after a miss.
-  CallFunctionNoFeedback(masm,
-                         arg_count(),
-                         true,
-                         CallAsMethod());
-
-  // Unreachable.
-  __ int3();
+  __ Set(eax, arg_count());
+  __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
 }
 
 
 void CallICStub::Generate(MacroAssembler* masm) {
   // edi - function
   // edx - slot id
   // ebx - vector
   Isolate* isolate = masm->isolate();
   const int with_types_offset =
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kWithTypesIndex);
   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);
 
   // The checks. First, does edi match the recorded monomorphic target?
   __ mov(ecx, FieldOperand(ebx, edx, times_half_pointer_size,
                            FixedArray::kHeaderSize));
 
   // We don't know that we have a weak cell. We might have a private symbol
   // or an AllocationSite, but the memory is safe to examine.
@@ skipping 32 matching lines @@
 
     __ CmpObjectType(eax, FIRST_SPEC_OBJECT_TYPE, ecx);
     __ j(below, &wrap);
 
     __ bind(&cont);
   }
 
   __ InvokeFunction(edi, actual, JUMP_FUNCTION, NullCallWrapper());
 
   __ bind(&slow);
-  EmitSlowCase(isolate, masm, argc, &non_function);
+  EmitSlowCase(isolate, masm, argc);
 
   if (CallAsMethod()) {
     __ bind(&wrap);
     EmitWrapCase(masm, argc, &cont);
   }
 
   __ bind(&extra_checks_or_miss);
   Label uninitialized, miss;
 
   __ cmp(ecx, Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate)));
@@ skipping 60 matching lines @@
 
   // We are here because tracing is on or we encountered a MISS case we can't
   // handle here.
   __ bind(&miss);
   GenerateMiss(masm);
 
   // the slow case
   __ 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);
   __ j(not_equal, &slow);
   __ jmp(&have_js_function);
 
   // Unreachable
   __ int3();
 }
 
@@ skipping 3406 matching lines @@
                            Operand(ebp, 7 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32