p9-vpermr.c: New test for ISA 3.0 vpermr support.

gcc/testsuite/ChangeLog:

2016-05-24  Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* gcc.target/powerpc/p9-vpermr.c: New test for ISA 3.0 vpermr
	support.



Co-Authored-By: Kelvin Nilsen <kelvin@gcc.gnu.org>

From-SVN: r236655

gcc/testsuite/ChangeLog

+2016-05-24  Michael Meissner  <meissner@linux.vnet.ibm.com>
+	    Kelvin Nilsen  <kelvin@gcc.gnu.org>
+
+	* gcc.target/powerpc/p9-vpermr.c: New test for ISA 3.0 vpermr
+	support.
+
 2016-05-24  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/69872

gcc/testsuite/gcc.target/powerpc/p9-vpermr.c

+/* { dg-do compile { target { powerpc64le-*-* } } } */
+/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-options "-mcpu=power9 -O2" } */
+
+/* Test generation of VPERMR/XXPERMR on ISA 3.0 in little endian.  */
+
+#include <altivec.h>
+
+vector long long
+permute (vector long long *p, vector long long *q, vector unsigned char mask)
+{
+  vector long long a = *p;
+  vector long long b = *q;
+
+  /* Force a, b to be in altivec registers to select vpermr insn.  */
+  __asm__ (" # a: %x0, b: %x1" : "+v" (a), "+v" (b));
+
+  return vec_perm (a, b, mask);
+}
+
+/* { dg-final { scan-assembler "vpermr\|xxpermr" } } */