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

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index b2f60c5d2a09749cdedcbb862495d6ac1c01c3db..c290f8b3449a500788eb9947b5b2d62de68cdae9 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -1549,6 +1549,12 @@ 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);