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

src/ia32/debug-ia32.cc

Index: src/ia32/debug-ia32.cc
diff --git a/src/ia32/debug-ia32.cc b/src/ia32/debug-ia32.cc
index 957a75ad513434b1735dfbabc97c443a2d3f2ace..a2d75d76184fdb796113bb7bcf2e780ef0a5f8ab 100644
--- a/src/ia32/debug-ia32.cc
+++ b/src/ia32/debug-ia32.cc
@@ -194,8 +194,11 @@ void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register name = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
-  Generate_DebugBreakCallHelper(
-      masm, receiver.bit() | name.bit() | value.bit(), 0, false);
+  RegList regs = receiver.bit() | name.bit() | value.bit();
+  if (FLAG_vector_stores) {
+    regs |= VectorStoreICDescriptor::SlotRegister().bit();
+  }
+  Generate_DebugBreakCallHelper(masm, regs, 0, false);
 }
 
 
@@ -207,11 +210,7 @@ void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
 
 void DebugCodegen::GenerateKeyedStoreICDebugBreak(MacroAssembler* masm) {
   // Register state for keyed IC store call (from ic-ia32.cc).
-  Register receiver = StoreDescriptor::ReceiverRegister();
-  Register name = StoreDescriptor::NameRegister();
-  Register value = StoreDescriptor::ValueRegister();
-  Generate_DebugBreakCallHelper(
-      masm, receiver.bit() | name.bit() | value.bit(), 0, false);
+  GenerateStoreICDebugBreak(masm);
 }