p8-vec-xl-xst-v2.c: New.(actually added this time).

[testsuite]

2018-05-31  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* gcc.target/powerpc/p8-vec-xl-xst-v2.c: New.(actually added this time).

From-SVN: r261510

gcc/testsuite/gcc.target/powerpc/p8-vec-xl-xst-v2.c

+/* { dg-do compile { target { le } } } */
+/* { dg-skip-if "" { powerpc*-*-darwin* } } */
+/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
+/* { dg-options "-mcpu=power8 -O2" } */
+
+/* Verify fix for problem where vec_xl and vec_xst are not recognized
+   for the vector char and vector short cases on P8 only.
+   This test duplicates p8-vec-xl-xst.c , except that it allows gimple-folding,
+   which changes the expected codegen.  */
+
+#include <altivec.h>
+
+vector unsigned char
+foo (unsigned char * address)
+{
+  return __builtin_vec_xl (0, address);
+}
+
+void
+bar (vector unsigned char x, unsigned char * address)
+{
+  __builtin_vec_xst (x, 0, address);
+}
+
+vector unsigned short
+foot (unsigned short * address)
+{
+  return __builtin_vec_xl (0, address);
+}
+
+void
+bart (vector unsigned short x, unsigned short * address)
+{
+  __builtin_vec_xst (x, 0, address);
+}
+
+vector unsigned char
+fool (unsigned char * address)
+{
+  return vec_xl (0, address);
+}
+
+void
+barl (vector unsigned char x, unsigned char * address)
+{
+  vec_xst (x, 0, address);
+}
+
+vector unsigned short
+footle (unsigned short * address)
+{
+  return vec_xl (0, address);
+}
+
+void
+bartle (vector unsigned short x, unsigned short * address)
+{
+  vec_xst (x, 0, address);
+}
+
+/* { dg-final { scan-assembler-times "lvx" 4 } } */
+/* { dg-final { scan-assembler-times "stvx"  4 } } */
+/* { dg-final { scan-assembler-times "xxpermdi" 0 } } */