MIPS: Small fix for r11771 (1b74d45b).

src/mips/stub-cache-mips.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 2684 matching lines @@
     __ push(a0);
 
     // Call the JavaScript getter with the receiver and the value on the stack.
     __ push(a1);
     __ push(a0);
     ParameterCount actual(1);
     __ InvokeFunction(setter, actual, CALL_FUNCTION, NullCallWrapper(),
                       CALL_AS_METHOD);
 
     // We have to return the passed value, not the return value of the setter.
-    __ pop(a0);
+    __ pop(v0);
 
     // Restore context register.
     __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   __ Ret();
 
   __ bind(&miss);
   Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
@@ skipping 2021 matching lines @@
     __ Jump(ic_slow, RelocInfo::CODE_TARGET);
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS