vsx.md (vsx_set_<mode>): Reorder operands.

gcc/
	* config/rs6000/vsx.md (vsx_set_<mode>): Reorder operands.

gcc/testsuite/
	* gcc.target/powerpc/pr52457.c: New test.

From-SVN: r184811

gcc/ChangeLog

+2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>
+
+	* config/rs6000/vsx.md (vsx_set_<mode>): Reorder operands.
+
 2012-03-02  Ulrich Weigand  <ulrich.weigand@linaro.org>
 
 	* config/arm/arm.c (arm_sat_operator_match): New function.

gcc/config/rs6000/vsx.md

@@ -1119,9 +1119,9 @@
   "VECTOR_MEM_VSX_P (<MODE>mode)"
 {
   if (INTVAL (operands[3]) == 0)
-    return \"xxpermdi %x0,%x1,%x2,1\";
+    return \"xxpermdi %x0,%x2,%x1,1\";
   else if (INTVAL (operands[3]) == 1)
-    return \"xxpermdi %x0,%x2,%x1,0\";
+    return \"xxpermdi %x0,%x1,%x2,0\";
   else
     gcc_unreachable ();
 }

gcc/testsuite/ChangeLog

+2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>
+
+	* gcc.target/powerpc/pr52457.c: New test.
+
 2012-03-02  Ulrich Weigand  <ulrich.weigand@linaro.org>
 
 	* gcc.target/arm/sat-1.c: New test.

gcc/testsuite/gcc.target/powerpc/pr52457.c

+/* { dg-do run { target { powerpc*-*-linux* } } } */
+/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
+/* { dg-skip-if "" { powerpc*-*-*spe* } { "*" } { "" } } */
+/* { dg-require-effective-target vsx_hw } */
+/* { dg-options "-O1 -mcpu=power7" } */
+
+extern void abort (void);
+
+typedef long long T;
+typedef T vl_t __attribute__((vector_size(2 * sizeof (T))));
+
+vl_t
+buggy_func (T x)
+{
+  vl_t w;
+  T *p = (T *)&w;
+  p[0] = p[1] = x;
+  return w;
+}
+
+int
+main(void)
+{
+  vl_t rval;
+  T *pl;
+
+  pl = (T *) &rval;
+  rval = buggy_func (2);
+
+  if (pl[0] != 2 || pl[1] != 2)
+    abort ();
+
+  return 0;
+}