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

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 204 matching lines @@
     XMMRegister src = cgen_->ToDoubleRegister(source);
     if (destination->IsDoubleRegister()) {
       __ 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);
+      __ LoadDbl(cgen_->ToDoubleRegister(destination), src);
     } else {
       ASSERT(destination->IsDoubleStackSlot());
-      __ movsd(xmm0, src);
+      __ LoadDbl(xmm0, src);
       __ movsd(cgen_->ToOperand(destination), xmm0);
     }
   } else {
     UNREACHABLE();
   }
 
   moves_[index].Eliminate();
 }
 
 
@@ skipping 18 matching lines @@
         cgen_->ToOperand(source->IsRegister() ? destination : source);
     __ movq(kScratchRegister, mem);
     __ movq(mem, reg);
     __ movq(reg, kScratchRegister);
 
   } else if ((source->IsStackSlot() && destination->IsStackSlot()) ||
       (source->IsDoubleStackSlot() && destination->IsDoubleStackSlot())) {
     // Swap two stack slots or two double stack slots.
     Operand src = cgen_->ToOperand(source);
     Operand dst = cgen_->ToOperand(destination);
-    __ movsd(xmm0, src);
+    __ LoadDbl(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);
     __ 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());
     Operand other_operand = cgen_->ToOperand(other);
-    __ movsd(xmm0, other_operand);
+    __ LoadDbl(xmm0, other_operand);
     __ movsd(other_operand, reg);
     __ movsd(reg, xmm0);
 
   } else {
     // No other combinations are possible.
     UNREACHABLE();
   }
 
   // The swap of source and destination has executed a move from source to
   // destination.
@@ skipping 10 matching lines @@
       moves_[i].set_source(source);
     }
   }
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64