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

src/mips/code-stubs-mips.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_MIPS
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 2506 matching lines @@
   // Do not transform the receiver for strict mode functions.
   int32_t strict_mode_function_mask =
       1 <<  (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize);
   // Do not transform the receiver for native (Compilerhints already in a3).
   int32_t native_mask = 1 << (SharedFunctionInfo::kNative + kSmiTagSize);
   __ And(at, t0, Operand(strict_mode_function_mask | native_mask));
   __ Branch(cont, ne, at, Operand(zero_reg));
 }
 
 
-static void EmitSlowCase(MacroAssembler* masm,
-                         int argc,
-                         Label* non_function) {
-  // Check for function proxy.
-  __ Branch(non_function, ne, t0, Operand(JS_FUNCTION_PROXY_TYPE));
-  __ push(a1);  // put proxy as additional argument
-  __ li(a0, Operand(argc + 1, RelocInfo::NONE32));
-  __ mov(a2, zero_reg);
-  __ GetBuiltinFunction(a1, Context::CALL_FUNCTION_PROXY_BUILTIN_INDEX);
-  {
-    Handle<Code> adaptor =
-        masm->isolate()->builtins()->ArgumentsAdaptorTrampoline();
-    __ Jump(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);
-  __ sw(a1, MemOperand(sp, argc * kPointerSize));
-  __ li(a0, Operand(argc));  // Set up the number of arguments.
-  __ mov(a2, zero_reg);
-  __ GetBuiltinFunction(a1, Context::CALL_NON_FUNCTION_BUILTIN_INDEX);
-  __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(),
-          RelocInfo::CODE_TARGET);
+static void EmitSlowCase(MacroAssembler* masm, int argc) {
+  __ li(a0, Operand(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(a1);
     __ mov(a0, a3);
     ToObjectStub stub(masm->isolate());
     __ CallStub(&stub);
     __ pop(a1);
   }
   __ Branch(USE_DELAY_SLOT, cont);
   __ sw(v0, MemOperand(sp, argc * kPointerSize));
 }
 
 
 static void CallFunctionNoFeedback(MacroAssembler* masm,
                                    int argc, bool needs_checks,
                                    bool call_as_method) {
   // a1 : the function to call
-  Label slow, non_function, wrap, cont;
+  Label slow, wrap, cont;
 
   if (needs_checks) {
     // Check that the function is really a JavaScript function.
     // a1: pushed function (to be verified)
-    __ JumpIfSmi(a1, &non_function);
+    __ JumpIfSmi(a1, &slow);
 
     // Goto slow case if we do not have a function.
     __ GetObjectType(a1, t0, t0);
     __ Branch(&slow, ne, t0, Operand(JS_FUNCTION_TYPE));
   }
 
   // Fast-case: Invoke the function now.
   // a1: pushed function
   ParameterCount actual(argc);
 
@@ skipping 14 matching lines @@
     }
 
     __ bind(&cont);
   }
 
   __ InvokeFunction(a1, actual, JUMP_FUNCTION, NullCallWrapper());
 
   if (needs_checks) {
     // Slow-case: Non-function called.
     __ bind(&slow);
-    EmitSlowCase(masm, argc, &non_function);
+    EmitSlowCase(masm, argc);
   }
 
   if (call_as_method) {
     __ bind(&wrap);
     // Wrap the receiver and patch it back onto the stack.
     EmitWrapCase(masm, argc, &cont);
   }
 }
 
 
@@ skipping 113 matching lines @@
 
   __ mov(a2, t0);
   __ mov(a3, a1);
   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.
-  __ stop("Unexpected code address");
+  __ li(a0, Operand(arg_count()));
+  __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
 }
 
 
 void CallICStub::Generate(MacroAssembler* masm) {
   // a1 - function
   // a3 - slot id (Smi)
   // a2 - vector
   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 r1 match the recorded monomorphic target?
   __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize);
   __ Addu(t0, a2, Operand(t0));
   __ lw(t0, FieldMemOperand(t0, FixedArray::kHeaderSize));
 
   // We don't know that we have a weak cell. We might have a private symbol
@@ skipping 33 matching lines @@
     __ JumpIfSmi(a3, &wrap);
     __ GetObjectType(a3, t0, t0);
     __ Branch(&wrap, lt, t0, Operand(FIRST_SPEC_OBJECT_TYPE));
 
     __ bind(&cont);
   }
 
   __ InvokeFunction(a1, actual, JUMP_FUNCTION, NullCallWrapper());
 
   __ bind(&slow);
-  EmitSlowCase(masm, argc, &non_function);
+  EmitSlowCase(masm, argc);
 
   if (CallAsMethod()) {
     __ bind(&wrap);
     EmitWrapCase(masm, argc, &cont);
   }
 
   __ bind(&extra_checks_or_miss);
   Label uninitialized, miss;
 
   __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex);
@@ skipping 67 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 is really a JavaScript function.
   // r1: pushed function (to be verified)
-  __ JumpIfSmi(a1, &non_function);
+  __ JumpIfSmi(a1, &slow);
 
   // Goto slow case if we do not have a function.
   __ GetObjectType(a1, t0, t0);
   __ Branch(&slow, ne, t0, Operand(JS_FUNCTION_TYPE));
   __ Branch(&have_js_function);
 }
 
 
 void CallICStub::GenerateMiss(MacroAssembler* masm) {
   FrameScope scope(masm, StackFrame::INTERNAL);
@@ skipping 2872 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS