[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..2ed73daed4d131546460ef24bb062db1dfed6cb6 100644
--- a/crosstest/test_cast.h
+++ b/crosstest/test_cast.h
@@ -21,3 +21,8 @@ typedef signed char myint8_t;
 
 template <typename FromType, typename ToType> ToType cast(FromType a);
 template <typename FromType, typename ToType> ToType castBits(FromType a);
+#ifdef MIPS32

[Jim Stichnoth, 2016/10/21 14:18:56]

What do you think about running this set of tests for all targets, not just
MIPS32?  If that were done, I would suggest a few other modifications:

1. Maybe add a dummy int arg both before and after the main arg, in case some
target passes args in the opposite memory order.

2. Would be nice to refactor the great similarities in the .cpp files.  Maybe
use variadic macros?

3. Document somewhere (here?) why these dummy-arg functions are tested
(specifically for bitcast).

[jaydeep.patil, 2016/10/26 07:47:31]

Done.

+template <typename FromType, typename ToType> ToType cast(int i, FromType a);
+template <typename FromType, typename ToType> ToType castBits(int i,
+                                                              FromType a);
+#endif