[PATCH, rs6000] Use explicit casts for vec_sel argument 3 in intrinsic headers

[Bill Schmidt]

Hi,

The vec_sel intrinsic is overloaded for multiple types.  There are a
couple of cases in our intrinsic compatibility headers where the types
used don't match any allowable type signature.  GCC is able to correctly
infer which matching built-in function is meant, but not all compilers
can.  For compatibility, cast the third parameter correctly in the
source code.

Bootstrapped and tested on powerpc64le-linux-gnu with no regressions.
Is this okay for trunk?

Thanks,
Bill


2018-10-22  Bill Schmidt  <wschm...@linux.ibm.com>
            Jinsong Ji <j...@us.ibm.com>

        * config/rs6000/emmintrin.h (_mm_sll_epi64): Explicitly cast third
        argument of vec_sel to vector unsigned long long.
        * config/rs6000/xmmintrin.h (_mm_min_ps): Explicitly cast third
        argument of vec_sel to vector unsigned int.


Index: gcc/config/rs6000/emmintrin.h
===================================================================
--- gcc/config/rs6000/emmintrin.h       (revision 265389)
+++ gcc/config/rs6000/emmintrin.h       (working copy)
@@ -1766,7 +1766,7 @@ _mm_sll_epi64 (__m128i __A, __m128i __B)
   shmask = lshift < shmax;
   result = vec_vsld ((__v2du) __A, lshift);
   result = (__v2du) vec_sel ((__v2df) shmask, (__v2df) result,
-                             (__v2df) shmask);
+                            (vector unsigned long long) shmask);
 
   return (__m128i) result;
 }
Index: gcc/config/rs6000/xmmintrin.h
===================================================================
--- gcc/config/rs6000/xmmintrin.h       (revision 265389)
+++ gcc/config/rs6000/xmmintrin.h       (working copy)
@@ -458,7 +458,7 @@ extern __inline __m128 __attribute__((__gnu_inline
 _mm_min_ps (__m128 __A, __m128 __B)
 {
   __m128 m = (__m128) vec_vcmpgtfp ((__v4sf) __B, (__v4sf) __A);
-  return vec_sel (__B, __A, m);
+  return vec_sel (__B, __A, (vector unsigned int)m);
 }
 
 extern __inline __m128 __attribute__((__gnu_inline__, __always_inline__, 
__artificial__))