MIPS: Fix loading Float64 constants in turbofan.

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 19d1b024e01cc9b2ecaac2dd9902dd25ec6fdc2f..321f756d45c23281691243495b3358ecec4f0b38 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -831,7 +831,7 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
       DoubleRegister dst = destination->IsDoubleRegister()
                                ? g.ToDoubleRegister(destination)
                                : kScratchDoubleReg;
-      __ Move(dst, src.ToFloat64());
+      __ Move(dst, src.ToFloat64(), true);

[paul.l..., 2014/10/10 15:34:14]

nit: the bool at the call site here is a bit confusing to the reader, you might
consider making an enum value for this to enhance readability. Though naming of
this "force_load" functionality is not going to be very meaningful in this
context any way, so this can be optional. Let's have a brief side discussion
about this.

       if (destination->IsDoubleStackSlot()) {
         __ sdc1(dst, g.ToMemOperand(destination));
       }