MIPS: [turbofan] Add RoundUint32ToFloat32 operator to Turbofan.

src/mips64/macro-assembler-mips64.h

Index: src/mips64/macro-assembler-mips64.h
diff --git a/src/mips64/macro-assembler-mips64.h b/src/mips64/macro-assembler-mips64.h
index 326f0a6202076c947bbbb268b00e0d292ccc5580..5a4654ed2b16d16e88b7195ee6c5418ea9b11f61 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -832,6 +832,10 @@ class MacroAssembler: public Assembler {
   void Cvt_d_ul(FPURegister fd, FPURegister fs);
   void Cvt_d_ul(FPURegister fd, Register rs);
 
+  // Convert unsigned word to float.
+  void Cvt_s_uw(FPURegister fd, FPURegister fs);
+  void Cvt_s_uw(FPURegister fd, Register rs);
+
   // Convert unsigned long to float.
   void Cvt_s_ul(FPURegister fd, FPURegister fs);
   void Cvt_s_ul(FPURegister fd, Register rs);