MIPS64: [turbofan] Add checked load/store operators.

src/mips64/macro-assembler-mips64.cc

Index: src/mips64/macro-assembler-mips64.cc
diff --git a/src/mips64/macro-assembler-mips64.cc b/src/mips64/macro-assembler-mips64.cc
index b621e868a736658a4644c435fbe0c8b1a8fb31fa..916231b2b4ed931d6d77aa97efe68202509abd3b 100644
--- a/src/mips64/macro-assembler-mips64.cc
+++ b/src/mips64/macro-assembler-mips64.cc
@@ -1717,6 +1717,12 @@ void MacroAssembler::BranchF(Label* target,
 }
 
 
+void MacroAssembler::Move(FPURegister dst, float imm) {
+  li(at, Operand(bit_cast<int32_t>(imm)));
+  mtc1(at, dst);
+}
+
+
 void MacroAssembler::Move(FPURegister dst, double imm) {
   static const DoubleRepresentation minus_zero(-0.0);
   static const DoubleRepresentation zero(0.0);