X64: Adding macro to load double from memory, and use SSE3 instruction if present.

src/x64/deoptimizer-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 738 matching lines @@
   __ j(not_zero, &inner_push_loop);
   __ addq(rax, Immediate(kPointerSize));
   __ cmpq(rax, rdx);
   __ j(below, &outer_push_loop);
 
   // In case of OSR, we have to restore the XMM registers.
   if (type() == OSR) {
     for (int i = 0; i < XMMRegister::kNumAllocatableRegisters; ++i) {
       XMMRegister xmm_reg = XMMRegister::FromAllocationIndex(i);
       int src_offset = i * kDoubleSize + double_regs_offset;
-      __ movsd(xmm_reg, Operand(rbx, src_offset));
+      __ LoadDbl(xmm_reg, Operand(rbx, src_offset));
     }
   }
 
   // Push state, pc, and continuation from the last output frame.
   if (type() != OSR) {
     __ push(Operand(rbx, FrameDescription::state_offset()));
   }
   __ push(Operand(rbx, FrameDescription::pc_offset()));
   __ push(Operand(rbx, FrameDescription::continuation_offset()));
 
@@ skipping 36 matching lines @@
   }
   __ bind(&done);
 }
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64