Vector ICs: debugger should save registers for vector store ics.

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 200 matching lines @@
   RegList regs = receiver.Bit() | name.Bit() | slot.Bit();
   Generate_DebugBreakCallHelper(masm, regs, 0, x10);
 }
 
 
 void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
   // Calling convention for IC store (from ic-arm64.cc).
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register name = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
-  Generate_DebugBreakCallHelper(
-      masm, receiver.Bit() | name.Bit() | value.Bit(), 0, x10);
+  RegList regs = receiver.Bit() | name.Bit() | value.Bit();
+  if (FLAG_vector_stores) {
+    regs |= VectorStoreICDescriptor::SlotRegister().Bit();
+  }
+  Generate_DebugBreakCallHelper(masm, regs, 0, x10);
 }
 
 
 void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
   // Calling convention for keyed IC load (from ic-arm.cc).
   GenerateLoadICDebugBreak(masm);
 }
 
 
 void DebugCodegen::GenerateKeyedStoreICDebugBreak(MacroAssembler* masm) {
   // Calling convention for IC keyed store call (from ic-arm64.cc).
-  Register receiver = StoreDescriptor::ReceiverRegister();
-  Register name = StoreDescriptor::NameRegister();
-  Register value = StoreDescriptor::ValueRegister();
-  Generate_DebugBreakCallHelper(
-      masm, receiver.Bit() | name.Bit() | value.Bit(), 0, x10);
+  GenerateStoreICDebugBreak(masm);
 }
 
 
 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 92 matching lines @@
   __ Br(scratch);
 }
 
 
 const bool LiveEdit::kFrameDropperSupported = true;
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64