[SubZero] Fix f64 to/from i64 moves

crosstest/test_cast.h

Index: crosstest/test_cast.h
diff --git a/crosstest/test_cast.h b/crosstest/test_cast.h
index 27d0dd02498df598a937de20216571957fa5492e..c67ad2f76e62af85c04216e82b110ede8d94f480 100644
--- a/crosstest/test_cast.h
+++ b/crosstest/test_cast.h
@@ -21,3 +21,13 @@ typedef signed char myint8_t;
 
 template <typename FromType, typename ToType> ToType cast(FromType a);
 template <typename FromType, typename ToType> ToType castBits(FromType a);
+
+// Targets like MIPS32, pass floating-point arguments in general purpose
+// registers when the first argument is passed in a general purpose register.
+// Overloaded cast and castBits functions take two extra integer argument to
+// check proper conversion of floating-point to/from general purpose registers.
+template <typename FromType, typename ToType> ToType cast(int i, FromType a,
+                                                          int j);
+template <typename FromType, typename ToType> ToType castBits(int i,
+                                                              FromType a,
+                                                              int j);