X64 tweaks.

src/x64/lithium-gap-resolver-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 196 matching lines @@
         // Allow top 32 bits of an untagged Integer32 to be arbitrary.
         __ movl(dst, Immediate(cgen_->ToInteger32(constant_source)));
       } else {
         __ Move(dst, cgen_->ToHandle(constant_source));
       }
     }
 
   } else if (source->IsDoubleRegister()) {
     XMMRegister src = cgen_->ToDoubleRegister(source);
     if (destination->IsDoubleRegister()) {
-      __ movsd(cgen_->ToDoubleRegister(destination), src);
+      __ movaps(cgen_->ToDoubleRegister(destination), src);
     } else {
       ASSERT(destination->IsDoubleStackSlot());
       __ movsd(cgen_->ToOperand(destination), src);
     }
   } else if (source->IsDoubleStackSlot()) {
     Operand src = cgen_->ToOperand(source);
     if (destination->IsDoubleRegister()) {
       __ movsd(cgen_->ToDoubleRegister(destination), src);
     } else {
       ASSERT(destination->IsDoubleStackSlot());
@@ skipping 38 matching lines @@
     Operand dst = cgen_->ToOperand(destination);
     __ movsd(xmm0, src);
     __ movq(kScratchRegister, dst);
     __ movsd(dst, xmm0);
     __ movq(src, kScratchRegister);
 
   } else if (source->IsDoubleRegister() && destination->IsDoubleRegister()) {
     // Swap two double registers.
     XMMRegister source_reg = cgen_->ToDoubleRegister(source);
     XMMRegister destination_reg = cgen_->ToDoubleRegister(destination);
-    __ movsd(xmm0, source_reg);
-    __ movsd(source_reg, destination_reg);
-    __ movsd(destination_reg, xmm0);
+    __ movaps(xmm0, source_reg);
+    __ movaps(source_reg, destination_reg);
+    __ movaps(destination_reg, xmm0);
 
   } else if (source->IsDoubleRegister() || destination->IsDoubleRegister()) {
     // Swap a double register and a double stack slot.
     ASSERT((source->IsDoubleRegister() && destination->IsDoubleStackSlot()) ||
            (source->IsDoubleStackSlot() && destination->IsDoubleRegister()));
     XMMRegister reg = cgen_->ToDoubleRegister(source->IsDoubleRegister()
                                                   ? source
                                                   : destination);
     LOperand* other = source->IsDoubleRegister() ? destination : source;
     ASSERT(other->IsDoubleStackSlot());
@@ skipping 22 matching lines @@
       moves_[i].set_source(source);
     }
   }
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64