CallICStub with a "never patch" approach until customization.

src/x64/debug-x64.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.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "assembler.h"
 #include "codegen.h"
@@ skipping 134 matching lines @@
   // Now that the break point has been handled, resume normal execution by
   // jumping to the target address intended by the caller and that was
   // overwritten by the address of DebugBreakXXX.
   ExternalReference after_break_target =
       ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate());
   __ Move(kScratchRegister, after_break_target);
   __ Jump(Operand(kScratchRegister, 0));
 }
 
 
+void Debug::GenerateCallICStubDebugBreak(MacroAssembler* masm) {
+  // Register state for CallICStub
+  // ----------- S t a t e -------------
+  //  -- rdx    : type feedback slot (smi)
+  //  -- rdi    : function
+  // -----------------------------------
+  Generate_DebugBreakCallHelper(masm, rdx.bit() | rdi.bit(), 0, false);
+}
+
+
 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) {
   // Register state for IC load call (from ic-x64.cc).
   // ----------- S t a t e -------------
   //  -- rax    : receiver
   //  -- rcx    : name
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, rax.bit() | rcx.bit(), 0, false);
 }
 
 
@@ skipping 33 matching lines @@
 
 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) {
   // Register state for CompareNil IC
   // ----------- S t a t e -------------
   //  -- rax    : value
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, rax.bit(), 0, false);
 }
 
 
-void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) {
-  // Register state for IC call call (from ic-x64.cc)
-  // ----------- S t a t e -------------
-  //  -- rcx: function name
-  // -----------------------------------
-  Generate_DebugBreakCallHelper(masm, rcx.bit(), 0, false);
-}
-
-
 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) {
   // Register state just before return from JS function (from codegen-x64.cc).
   // ----------- S t a t e -------------
   //  -- rax: return value
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, rax.bit(), 0, true);
 }
 
 
 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) {
   // Register state for CallFunctionStub (from code-stubs-x64.cc).
   // ----------- S t a t e -------------
   //  -- rdi : function
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, rdi.bit(), 0, false);
 }
 
 
-void Debug::GenerateCallFunctionStubRecordDebugBreak(MacroAssembler* masm) {
-  // Register state for CallFunctionStub (from code-stubs-x64.cc).
-  // ----------- S t a t e -------------
-  //  -- rdi : function
-  //  -- rbx: feedback array
-  //  -- rdx: slot in feedback array
-  // -----------------------------------
-  Generate_DebugBreakCallHelper(masm, rbx.bit() | rdx.bit() | rdi.bit(),
-                                0, false);
-}
-
-
 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) {
   // Register state for CallConstructStub (from code-stubs-x64.cc).
   // rax is the actual number of arguments not encoded as a smi, see comment
   // above IC call.
   // ----------- S t a t e -------------
   //  -- rax: number of arguments
   // -----------------------------------
   // The number of arguments in rax is not smi encoded.
   Generate_DebugBreakCallHelper(masm, rdi.bit(), rax.bit(), false);
 }
@@ skipping 62 matching lines @@
   __ jmp(rdx);
 }
 
 const bool Debug::kFrameDropperSupported = true;
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64