Preview of a first step towards unification of hydrogen calls

src/x64/builtins-x64.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 351 matching lines @@
     __ push(Operand(rbx, rcx, times_pointer_size, 0));
     __ bind(&entry);
     __ decq(rcx);
     __ j(greater_equal, &loop);
 
     // Call the function.
     if (is_api_function) {
       __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset));
       Handle<Code> code =
           masm->isolate()->builtins()->HandleApiCallConstruct();
-      ParameterCount expected(0);
-      __ InvokeCode(code, expected, expected, RelocInfo::CODE_TARGET,
-                    CALL_FUNCTION, NullCallWrapper());
+      __ Call(code, RelocInfo::CODE_TARGET);
     } else {
       ParameterCount actual(rax);
       __ InvokeFunction(rdi, actual, CALL_FUNCTION, NullCallWrapper());
     }
 
     // Store offset of return address for deoptimizer.
     if (!is_api_function && !count_constructions) {
       masm->isolate()->heap()->SetConstructStubDeoptPCOffset(masm->pc_offset());
     }
 
@@ skipping 911 matching lines @@
   SmiIndex index = masm->SmiToIndex(rbx, rbx, kPointerSizeLog2);
   __ lea(rsp, Operand(rsp, index.reg, index.scale, 1 * kPointerSize));
   __ PushReturnAddressFrom(rcx);
 }
 
 
 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rax : actual number of arguments
   //  -- rbx : expected number of arguments
-  //  -- rdx : code entry to call
+  //  -- rdi: function (passed through to callee)
   // -----------------------------------
 
   Label invoke, dont_adapt_arguments;
   Counters* counters = masm->isolate()->counters();
   __ IncrementCounter(counters->arguments_adaptors(), 1);
 
   Label enough, too_few;
+  __ movq(rdx, FieldOperand(rdi, JSFunction::kCodeEntryOffset));
   __ cmpq(rax, rbx);
   __ j(less, &too_few);
   __ cmpq(rbx, Immediate(SharedFunctionInfo::kDontAdaptArgumentsSentinel));
   __ j(equal, &dont_adapt_arguments);
 
   {  // Enough parameters: Actual >= expected.
     __ bind(&enough);
     EnterArgumentsAdaptorFrame(masm);
 
     // Copy receiver and all expected arguments.
@@ skipping 111 matching lines @@
   __ bind(&ok);
   __ ret(0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64