altivec.md (p8_vmrgew): Handle little endian targets.

2014-02-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/altivec.md (p8_vmrgew): Handle little endian
	targets.
	(p8_vmrgow): Likewise.

From-SVN: r207815

gcc/ChangeLog

 2014-02-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
+	* config/rs6000/altivec.md (p8_vmrgew): Handle little endian
+	targets.
+	(p8_vmrgow): Likewise.
+
+2014-02-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
 	* config/rs6000/vsx.md (vsx_xxpermdi_<mode>): Handle little
 	endian targets.
 

gcc/config/rs6000/altivec.md

@@ -1234,7 +1234,12 @@
 	  (parallel [(const_int 0) (const_int 4)
 		     (const_int 2) (const_int 6)])))]
   "TARGET_P8_VECTOR"
-  "vmrgew %0,%1,%2"
+{
+  if (BYTES_BIG_ENDIAN)
+    return "vmrgew %0,%1,%2";
+  else
+    return "vmrgow %0,%2,%1";
+}
   [(set_attr "type" "vecperm")])
 
 (define_insn "p8_vmrgow"
@@ -1246,7 +1251,12 @@
 	  (parallel [(const_int 1) (const_int 5)
 		     (const_int 3) (const_int 7)])))]
   "TARGET_P8_VECTOR"
-  "vmrgow %0,%1,%2"
+{
+  if (BYTES_BIG_ENDIAN)
+    return "vmrgow %0,%1,%2";
+  else
+    return "vmrgew %0,%2,%1";
+}
   [(set_attr "type" "vecperm")])
 
 (define_expand "vec_widen_umult_even_v16qi"