Use a register spec for StoreIC and KeyedStoreIC.

src/arm64/debug-arm64.cc

 // Copyright 2013 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 "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/codegen.h"
 #include "src/debug.h"
@@ skipping 225 matching lines @@
 
 void DebugCodegen::GenerateLoadICDebugBreak(MacroAssembler* masm) {
   // Calling convention for IC load (from ic-arm.cc).
   Register receiver = LoadIC::ReceiverRegister();
   Register name = LoadIC::NameRegister();
   Generate_DebugBreakCallHelper(masm, receiver.Bit() | name.Bit(), 0, x10);
 }
 
 
 void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
-  // Calling convention for IC store (from ic-arm.cc).
-  // ----------- S t a t e -------------
-  //  -- x0    : value
-  //  -- x1    : receiver
-  //  -- x2    : name
-  //  -- lr    : return address
-  // -----------------------------------
-  // Registers x0, x1, and x2 contain objects that need to be pushed on the
-  // expression stack of the fake JS frame.
-  Generate_DebugBreakCallHelper(masm, x0.Bit() | x1.Bit() | x2.Bit(), 0, x10);
+  // Calling convention for IC store (from ic-arm64.cc).
+  Register receiver = StoreIC::ReceiverRegister();
+  Register name = StoreIC::NameRegister();
+  Register value = StoreIC::ValueRegister();
+  Generate_DebugBreakCallHelper(
+      masm, receiver.Bit() | name.Bit() | value.Bit(), 0, x10);
 }
 
 
 void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
   // Calling convention for keyed IC load (from ic-arm.cc).
   GenerateLoadICDebugBreak(masm);
 }
 
 
 void DebugCodegen::GenerateKeyedStoreICDebugBreak(MacroAssembler* masm) {
-  // ---------- S t a t e --------------
-  //  -- x0     : value
-  //  -- x1     : key
-  //  -- x2     : receiver
-  //  -- lr     : return address
-  Generate_DebugBreakCallHelper(masm, x0.Bit() | x1.Bit() | x2.Bit(), 0, x10);
+  // Calling convention for IC keyed store call (from ic-arm64.cc).
+  Register receiver = KeyedStoreIC::ReceiverRegister();
+  Register name = KeyedStoreIC::NameRegister();
+  Register value = KeyedStoreIC::ValueRegister();
+  Generate_DebugBreakCallHelper(
+      masm, receiver.Bit() | name.Bit() | value.Bit(), 0, x10);
 }
 
 
 void DebugCodegen::GenerateCompareNilICDebugBreak(MacroAssembler* masm) {
   // Register state for CompareNil IC
   // ----------- S t a t e -------------
   //  -- r0    : value
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, x0.Bit(), 0, x10);
 }
@@ skipping 91 matching lines @@
   // Re-run JSFunction, x1 is function, cp is context.
   __ Br(scratch);
 }
 
 
 const bool LiveEdit::kFrameDropperSupported = true;
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64