ia32: Redefine register usage in LoadIC/KeyedLoadIC to match StoreIC and KeyedStoreIC

src/ia32/builtins-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 813 matching lines @@
     __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalContextOffset));
     __ mov(ebx, FieldOperand(ebx, kGlobalOffset));
     __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
 
     // Push the receiver.
     __ bind(&push_receiver);
     __ push(ebx);
 
     // Copy all arguments from the array to the stack.
     Label entry, loop;
-    __ mov(eax, Operand(ebp, kIndexOffset));
+    __ mov(ecx, Operand(ebp, kIndexOffset));
     __ jmp(&entry);
     __ bind(&loop);
     __ mov(edx, Operand(ebp, kArgumentsOffset));  // load arguments
 
     // Use inline caching to speed up access to arguments.
     Handle<Code> ic = masm->isolate()->builtins()->KeyedLoadIC_Initialize();
     __ call(ic, RelocInfo::CODE_TARGET);
     // It is important that we do not have a test instruction after the
     // call.  A test instruction after the call is used to indicate that
     // we have generated an inline version of the keyed load.  In this
     // case, we know that we are not generating a test instruction next.
 
     // Push the nth argument.
     __ push(eax);
 
     // Update the index on the stack and in register eax.
-    __ mov(eax, Operand(ebp, kIndexOffset));
-    __ add(eax, Immediate(1 << kSmiTagSize));
-    __ mov(Operand(ebp, kIndexOffset), eax);
+    __ mov(ecx, Operand(ebp, kIndexOffset));
+    __ add(ecx, Immediate(1 << kSmiTagSize));
+    __ mov(Operand(ebp, kIndexOffset), ecx);
 
     __ bind(&entry);
-    __ cmp(eax, Operand(ebp, kLimitOffset));
+    __ cmp(ecx, Operand(ebp, kLimitOffset));
     __ j(not_equal, &loop);
 
     // Invoke the function.
     Label call_proxy;
+    __ mov(eax, ecx);
     ParameterCount actual(eax);
     __ SmiUntag(eax);
     __ mov(edi, Operand(ebp, kFunctionOffset));
     __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
     __ j(not_equal, &call_proxy);
     __ InvokeFunction(edi, actual, CALL_FUNCTION,
                       NullCallWrapper(), CALL_AS_METHOD);
 
     frame_scope.GenerateLeaveFrame();
     __ ret(3 * kPointerSize);  // remove this, receiver, and arguments
@@ skipping 857 matching lines @@
   Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
   generator.Generate();
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32