MIPS64: [turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

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 5a925f1e0c4327cd8c4540f845a247f2078bb3fb..cd3638e50f7403e89d637ab7595c5d8953140d7a 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -839,6 +839,10 @@ class MacroAssembler: public Assembler {
   void Trunc_ul_d(FPURegister fd, FPURegister fs, FPURegister scratch);
   void Trunc_ul_d(FPURegister fd, Register rs, FPURegister scratch);
 
+  // Convert single to unsigned long.
+  void Trunc_ul_s(FPURegister fd, FPURegister fs, FPURegister scratch);
+  void Trunc_ul_s(FPURegister fd, Register rs, FPURegister scratch);
+
   void Trunc_w_d(FPURegister fd, FPURegister fs);
   void Round_w_d(FPURegister fd, FPURegister fs);
   void Floor_w_d(FPURegister fd, FPURegister fs);