MIPS: Use a register spec for StoreIC and KeyedStoreIC.

src/mips/debug-mips.cc

Index: src/mips/debug-mips.cc
diff --git a/src/mips/debug-mips.cc b/src/mips/debug-mips.cc
index 424a87a14803299d7b3e9596e7ff94cf9f04ba45..ef28f3362fbbe6ae8f80d87d1cf9985fa9221186 100644
--- a/src/mips/debug-mips.cc
+++ b/src/mips/debug-mips.cc
@@ -193,31 +193,27 @@ void DebugCodegen::GenerateLoadICDebugBreak(MacroAssembler* masm) {
 
 void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
   // Calling convention for IC store (from ic-mips.cc).
-  // ----------- S t a t e -------------
-  //  -- a0    : value
-  //  -- a1    : receiver
-  //  -- a2    : name
-  //  -- ra    : return address
-  // -----------------------------------
-  // Registers a0, a1, and a2 contain objects that need to be pushed on the
-  // expression stack of the fake JS frame.
-  Generate_DebugBreakCallHelper(masm, a0.bit() | a1.bit() | a2.bit(), 0);
+  Register receiver = StoreIC::ReceiverRegister();
+  Register name = StoreIC::NameRegister();
+  Register value = StoreIC::ValueRegister();
+  Generate_DebugBreakCallHelper(
+      masm, receiver.bit() | name.bit() | value.bit(), 0);
 }
 
 
 void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
-  // Calling convention for keyed IC load (from ic-arm.cc).
+  // Calling convention for keyed IC load (from ic-mips.cc).
   GenerateLoadICDebugBreak(masm);
 }
 
 
 void DebugCodegen::GenerateKeyedStoreICDebugBreak(MacroAssembler* masm) {
-  // ---------- S t a t e --------------
-  //  -- a0     : value
-  //  -- a1     : key
-  //  -- a2     : receiver
-  //  -- ra     : return address
-  Generate_DebugBreakCallHelper(masm, a0.bit() | a1.bit() | a2.bit(), 0);
+  // Calling convention for IC keyed store call (from ic-mips.cc).
+  Register receiver = KeyedStoreIC::ReceiverRegister();
+  Register name = KeyedStoreIC::NameRegister();
+  Register value = KeyedStoreIC::ValueRegister();
+  Generate_DebugBreakCallHelper(
+      masm, receiver.bit() | name.bit() | value.bit(), 0);
 }