X64 implementation: GenerateAdaptor builtin.

src/x64/builtins-x64.cc

 // Copyright 2009 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 16 matching lines @@
 
 #include "v8.h"
 #include "codegen-inl.h"
 #include "macro-assembler.h"
 
 namespace v8 {
 namespace internal {
 
 #define __ ACCESS_MASM(masm)
 
-void Builtins::Generate_Adaptor(MacroAssembler* masm,
-                                Builtins::CFunctionId id) {
-  masm->int3();  // UNIMPLEMENTED.
+void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id) {
+  // TODO(1238487): Don't pass the function in a static variable.
+  ExternalReference passed = ExternalReference::builtin_passed_function();
+  __ movq(kScratchRegister, passed.address(), RelocInfo::EXTERNAL_REFERENCE);
+  __ movq(Operand(kScratchRegister, 0), rdi);
+
+  // The actual argument count has already been loaded into register
+  // rax, but JumpToBuiltin expects rax to contain the number of
+  // arguments including the receiver.
+  __ incq(rax);
+  __ JumpToBuiltin(ExternalReference(id));
 }
 
+
 static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
   __ push(rbp);
   __ movq(rbp, rsp);
 
   // Store the arguments adaptor context sentinel.
   __ push(Immediate(ArgumentsAdaptorFrame::SENTINEL));
 
   // Push the function on the stack.
   __ push(rdi);
 
@@ skipping 102 matching lines @@
   // -------------------------------------------
   // Dont adapt arguments.
   // -------------------------------------------
   __ bind(&dont_adapt_arguments);
   __ jmp(rdx);
 }
 
 
 void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
   masm->int3();  // UNIMPLEMENTED.
+  masm->movq(kScratchRegister, Immediate(0xBEFA));  // Debugging aid.
 }
 
 void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
   masm->int3();  // UNIMPLEMENTED.
+  masm->movq(kScratchRegister, Immediate(0xBEFC));  // Debugging aid.
 }
 
 
 void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rax: number of arguments
   //  -- rdi: constructor function
   // -----------------------------------
 
   Label non_function_call;
@@ skipping 231 matching lines @@
 void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) {
   Generate_JSEntryTrampolineHelper(masm, false);
 }
 
 
 void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) {
   Generate_JSEntryTrampolineHelper(masm, true);
 }
 
 } }  // namespace v8::internal