MIPS: Implement target cache for constructor calls.

src/mips/builtins-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 660 matching lines @@
   __ IncrementCounter(counters->string_ctor_gc_required(), 1, a3, t0);
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
     __ push(argument);
     __ CallRuntime(Runtime::kNewStringWrapper, 1);
   }
   __ Ret();
 }
 
 
-void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
+static void Generate_JSConstructStubHelper(MacroAssembler* masm,
+                                           bool is_api_function,
+                                           bool count_constructions) {
   // ----------- S t a t e -------------
   //  -- a0     : number of arguments
   //  -- a1     : constructor function
   //  -- ra     : return address
   //  -- sp[...]: constructor arguments
   // -----------------------------------
 
-  Label slow, non_function_call;
-  // Check that the function is not a smi.
-  __ JumpIfSmi(a1, &non_function_call);
-  // Check that the function is a JSFunction.
-  __ GetObjectType(a1, a2, a2);
-  __ Branch(&slow, ne, a2, Operand(JS_FUNCTION_TYPE));
-
-  // Jump to the function-specific construct stub.
-  __ lw(a2, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
-  __ lw(a2, FieldMemOperand(a2, SharedFunctionInfo::kConstructStubOffset));
-  __ Addu(t9, a2, Operand(Code::kHeaderSize - kHeapObjectTag));
-  __ Jump(t9);
-
-  // a0: number of arguments
-  // a1: called object
-  // a2: object type
-  Label do_call;
-  __ bind(&slow);
-  __ Branch(&non_function_call, ne, a2, Operand(JS_FUNCTION_PROXY_TYPE));
-  __ GetBuiltinEntry(a3, Builtins::CALL_FUNCTION_PROXY_AS_CONSTRUCTOR);
-  __ jmp(&do_call);
-
-  __ bind(&non_function_call);
-  __ GetBuiltinEntry(a3, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR);
-  __ bind(&do_call);
-  // CALL_NON_FUNCTION expects the non-function constructor as receiver
-  // (instead of the original receiver from the call site). The receiver is
-  // stack element argc.
-  // Set expected number of arguments to zero (not changing a0).
-  __ mov(a2, zero_reg);
-  __ SetCallKind(t1, 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);
 
   Isolate* isolate = masm->isolate();
 
   // ----------- S t a t e -------------
   //  -- a0     : number of arguments
   //  -- a1     : constructor function
   //  -- ra     : return address
   //  -- sp[...]: constructor arguments
@@ skipping 402 matching lines @@
     __ mov(s2, t0);
     __ mov(s3, t0);
     __ mov(s4, t0);
     __ mov(s5, t0);
     // s6 holds the root address. Do not clobber.
     // s7 is cp. Do not init.
 
     // Invoke the code and pass argc as a0.
     __ mov(a0, a3);
     if (is_construct) {
-      __ Call(masm->isolate()->builtins()->JSConstructCall());
+      CallConstructStub stub(NO_CALL_FUNCTION_FLAGS);
+      __ CallStub(&stub);
     } else {
       ParameterCount actual(a0);
       __ InvokeFunction(a1, actual, CALL_FUNCTION,
                         NullCallWrapper(), CALL_AS_METHOD);
     }
 
     // Leave internal frame.
   }
 
   __ Jump(ra);
@@ skipping 648 matching lines @@
   __ bind(&dont_adapt_arguments);
   __ Jump(a3);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS