[SubZero] Fix f64 to/from i64 moves

crosstest/test_cast.cpp

Index: crosstest/test_cast.cpp
diff --git a/crosstest/test_cast.cpp b/crosstest/test_cast.cpp
index a2668f8208a6d3d0714419307e4f0b829280161e..98ad9fbc9246755b101c439bd2b3579a12841611 100644
--- a/crosstest/test_cast.cpp
+++ b/crosstest/test_cast.cpp
@@ -28,6 +28,20 @@ ToType __attribute__((noinline)) castBits(FromType a) {
   return *(ToType *)&a;
 }
 
+#ifdef MIPS32
+template <typename FromType, typename ToType>
+ToType __attribute__((noinline)) cast(int i, FromType a) {
+  (void) i;
+  return (ToType)a;
+}
+
+template <typename FromType, typename ToType>
+ToType __attribute__((noinline)) castBits(int i, FromType a) {
+  (void) i;
+  return *(ToType *)&a;
+}
+#endif
+
 // The purpose of the following sets of templates is to force
 // cast<A,B>() to be instantiated in the resulting bitcode file for
 // all <A,B>, so that they can be called from the driver.
@@ -43,6 +57,19 @@ template <typename ToType> class Caster {
   static ToType f(uint64 a) { return cast<uint64, ToType>(a); }
   static ToType f(float a) { return cast<float, ToType>(a); }
   static ToType f(double a) { return cast<double, ToType>(a); }
+
+#ifdef MIPS32
+  static ToType f(int i, myint8_t a) { return cast<myint8_t, ToType>(i, a); }
+  static ToType f(int i, uint8_t a) { return cast<uint8_t, ToType>(i, a); }
+  static ToType f(int i, int16_t a) { return cast<int16_t, ToType>(i, a); }
+  static ToType f(int i, uint16_t a) { return cast<uint16_t, ToType>(i, a); }
+  static ToType f(int i, int32_t a) { return cast<int32_t, ToType>(i, a); }
+  static ToType f(int i, uint32_t a) { return cast<uint32_t, ToType>(i, a); }
+  static ToType f(int i, int64 a) { return cast<int64, ToType>(i, a); }
+  static ToType f(int i, uint64 a) { return cast<uint64, ToType>(i, a); }
+  static ToType f(int i, float a) { return cast<float, ToType>(i, a); }
+  static ToType f(int i, double a) { return cast<double, ToType>(i, a); }
+#endif
 };
 
 // Comment out the definition of Caster<bool> because clang compiles
@@ -71,5 +98,11 @@ double makeBitCasters() {
   Result += castBits<uint64, double>(0);
   Result += castBits<float, uint32_t>(0);
   Result += castBits<double, uint64>(0);
+#ifdef MIPS32
+  Result += castBits<uint32_t, float>(1, 0);
+  Result += castBits<uint64, double>(1, 0);
+  Result += castBits<float, uint32_t>(1, 0);
+  Result += castBits<double, uint64>(1, 0);
+#endif
   return Result;
 }