MIPS: Fix kraken 1.1 benchmark failure.

src/mips/code-stubs-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 528 matching lines @@
   int double_offset = offset();
   // Account for saved regs if input is sp.
   if (input_reg.is(sp)) double_offset += 3 * kPointerSize;
 
   Register scratch =
       GetRegisterThatIsNotOneOf(input_reg, result_reg);
   Register scratch2 =
       GetRegisterThatIsNotOneOf(input_reg, result_reg, scratch);
   Register scratch3 =
       GetRegisterThatIsNotOneOf(input_reg, result_reg, scratch, scratch2);
-  DoubleRegister double_scratch = kLithiumScratchDouble.low();
-  DoubleRegister double_input = f12;
+  DoubleRegister double_scratch = kLithiumScratchDouble;
 
   __ Push(scratch, scratch2, scratch3);
 
-  __ ldc1(double_input, MemOperand(input_reg, double_offset));
+  if (!skip_fastpath()) {
+    // Load double input.
+    __ ldc1(double_scratch, MemOperand(input_reg, double_offset));
 
-  if (!skip_fastpath()) {
     // Clear cumulative exception flags and save the FCSR.
     __ cfc1(scratch2, FCSR);
     __ ctc1(zero_reg, FCSR);
+
     // Try a conversion to a signed integer.
-    __ trunc_w_d(double_scratch, double_input);
+    __ Trunc_w_d(double_scratch, double_scratch);
+    // Move the converted value into the result register.
     __ mfc1(result_reg, double_scratch);
+
     // Retrieve and restore the FCSR.
     __ cfc1(scratch, FCSR);
     __ ctc1(scratch2, FCSR);
+
     // Check for overflow and NaNs.
     __ And(
         scratch, scratch,
         kFCSROverflowFlagMask | kFCSRUnderflowFlagMask
            | kFCSRInvalidOpFlagMask);
     // If we had no exceptions we are done.
     __ Branch(&done, eq, scratch, Operand(zero_reg));
   }
 
   // Load the double value and perform a manual truncation.
   Register input_high = scratch2;
   Register input_low = scratch3;
-  __ Move(input_low, input_high, double_input);
+
+  __ lw(input_low, MemOperand(input_reg, double_offset));
+  __ lw(input_high, MemOperand(input_reg, double_offset + kIntSize));
 
   Label normal_exponent, restore_sign;
   // Extract the biased exponent in result.
   __ Ext(result_reg,
          input_high,
          HeapNumber::kExponentShift,
          HeapNumber::kExponentBits);
 
   // Check for Infinity and NaNs, which should return 0.
   __ Subu(scratch, result_reg, HeapNumber::kExponentMask);
@@ skipping 5642 matching lines @@
   __ bind(&fast_elements_case);
   GenerateCase(masm, FAST_ELEMENTS);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS