Use a register spec for StoreIC and KeyedStoreIC.

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index 4255d66868cd6f4fd8dee95057e99ae2ef7695b9..bb9fe954ebbf4f5ceec1504d2e0e86f61dd095ea 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -1693,8 +1693,9 @@ void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
-            __ mov(r2, Operand(key->value()));
-            __ ldr(r1, MemOperand(sp));
+            ASSERT(StoreIC::ValueRegister().is(r0));
+            __ mov(StoreIC::NameRegister(), Operand(key->value()));
+            __ ldr(StoreIC::ReceiverRegister(), MemOperand(sp));
             CallStoreIC(key->LiteralFeedbackId());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           } else {
@@ -2420,9 +2421,10 @@ void FullCodeGenerator::EmitAssignment(Expression* expr) {
     case NAMED_PROPERTY: {
       __ push(r0);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
-      __ mov(r1, r0);
-      __ pop(r0);  // Restore value.
-      __ mov(r2, Operand(prop->key()->AsLiteral()->value()));
+      __ Move(StoreIC::ReceiverRegister(), r0);
+      __ pop(StoreIC::ValueRegister());  // Restore value.
+      __ mov(StoreIC::NameRegister(),
+             Operand(prop->key()->AsLiteral()->value()));
       CallStoreIC();
       break;
     }
@@ -2430,8 +2432,8 @@ void FullCodeGenerator::EmitAssignment(Expression* expr) {
       __ push(r0);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
-      __ mov(r1, r0);
-      __ Pop(r0, r2);  // r0 = restored value.
+      __ Move(KeyedStoreIC::NameRegister(), r0);
+      __ Pop(KeyedStoreIC::ValueRegister(), KeyedStoreIC::ReceiverRegister());
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
@@ -2469,8 +2471,8 @@ void FullCodeGenerator::EmitCallStoreContextSlot(
 void FullCodeGenerator::EmitVariableAssignment(Variable* var, Token::Value op) {
   if (var->IsUnallocated()) {
     // Global var, const, or let.
-    __ mov(r2, Operand(var->name()));
-    __ ldr(r1, GlobalObjectOperand());
+    __ mov(StoreIC::NameRegister(), Operand(var->name()));
+    __ ldr(StoreIC::ReceiverRegister(), GlobalObjectOperand());
     CallStoreIC();
 
   } else if (op == Token::INIT_CONST_LEGACY) {
@@ -2540,9 +2542,8 @@ void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
-  __ mov(r2, Operand(prop->key()->AsLiteral()->value()));
-  __ pop(r1);
-
+  __ mov(StoreIC::NameRegister(), Operand(prop->key()->AsLiteral()->value()));
+  __ pop(StoreIC::ReceiverRegister());
   CallStoreIC(expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
@@ -2555,7 +2556,8 @@ void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
-  __ Pop(r2, r1);  // r1 = key.
+  __ Pop(KeyedStoreIC::ReceiverRegister(), KeyedStoreIC::NameRegister());
+  ASSERT(KeyedStoreIC::ValueRegister().is(r0));
 
   Handle<Code> ic = strict_mode() == SLOPPY
       ? isolate()->builtins()->KeyedStoreIC_Initialize()
@@ -4354,8 +4356,9 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
       }
       break;
     case NAMED_PROPERTY: {
-      __ mov(r2, Operand(prop->key()->AsLiteral()->value()));
-      __ pop(r1);
+      __ mov(StoreIC::NameRegister(),
+             Operand(prop->key()->AsLiteral()->value()));
+      __ pop(StoreIC::ReceiverRegister());
       CallStoreIC(expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
@@ -4368,7 +4371,7 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
       break;
     }
     case KEYED_PROPERTY: {
-      __ Pop(r2, r1);  // r1 = key. r2 = receiver.
+      __ Pop(KeyedStoreIC::ReceiverRegister(), KeyedStoreIC::NameRegister());
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();