MIPS: Improve conversion between ints and floats.

Change-Id: I767fe9623cc14e8480c31e305725eb5221cac282
diff --git a/compiler/utils/mips64/assembler_mips64.h b/compiler/utils/mips64/assembler_mips64.h
index 883f013..3262640 100644
--- a/compiler/utils/mips64/assembler_mips64.h
+++ b/compiler/utils/mips64/assembler_mips64.h
@@ -250,6 +250,10 @@
   void RoundLD(FpuRegister fd, FpuRegister fs);
   void RoundWS(FpuRegister fd, FpuRegister fs);
   void RoundWD(FpuRegister fd, FpuRegister fs);
+  void TruncLS(FpuRegister fd, FpuRegister fs);
+  void TruncLD(FpuRegister fd, FpuRegister fs);
+  void TruncWS(FpuRegister fd, FpuRegister fs);
+  void TruncWD(FpuRegister fd, FpuRegister fs);
   void CeilLS(FpuRegister fd, FpuRegister fs);
   void CeilLD(FpuRegister fd, FpuRegister fs);
   void CeilWS(FpuRegister fd, FpuRegister fs);