Cleanup: use xorps to zero out an xmm register on ia32 too.

src/x64/lithium-codegen-x64.cc

 // Copyright 2011 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 3579 matching lines @@
 
   XMMRegister input_reg = ToDoubleRegister(input);
   Register result_reg = ToRegister(result);
 
   if (instr->truncating()) {
     // Performs a truncating conversion of a floating point number as used by
     // the JS bitwise operations.
     __ cvttsd2siq(result_reg, input_reg);
     __ movq(kScratchRegister, V8_INT64_C(0x8000000000000000), RelocInfo::NONE);
     __ cmpq(result_reg, kScratchRegister);
-      DeoptimizeIf(equal, instr->environment());
+    DeoptimizeIf(equal, instr->environment());
   } else {
     __ cvttsd2si(result_reg, input_reg);
     __ cvtlsi2sd(xmm0, result_reg);
     __ ucomisd(xmm0, input_reg);
     DeoptimizeIf(not_equal, instr->environment());
     DeoptimizeIf(parity_even, instr->environment());  // NaN.
     if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) {
       NearLabel done;
       // The integer converted back is equal to the original. We
       // only have to test if we got -0 as an input.
@@ skipping 485 matching lines @@
   RegisterEnvironmentForDeoptimization(environment);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64