vector.md (vec_realign_load_<mode>): Reorder input operands to vperm for little endian.

2013-07-24  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>
	    Anton Blanchard <anton@au1.ibm.com>

	* vector.md (vec_realign_load_<mode>): Reorder input operands to
	vperm for little endian.
	* rs6000.c (rs6000_expand_builtin): Use lvsr instead of lvsl to
	create the control mask for a vperm for little endian.


Co-Authored-By: Anton Blanchard <anton@au1.ibm.com>

From-SVN: r201208

gcc/ChangeLog

+2013-07-24  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>
+	    Anton Blanchard <anton@au1.ibm.com>
+
+	* vector.md (vec_realign_load_<mode>): Reorder input operands to
+	vperm for little endian.
+	* rs6000.c (rs6000_expand_builtin): Use lvsr instead of lvsl to
+	create the control mask for a vperm for little endian.
+
 2013-07-23  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 	    Anton Blanchard <anton@au1.ibm.com>
 

gcc/config/rs6000/rs6000.c

@@ -12351,7 +12351,8 @@ rs6000_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
     case ALTIVEC_BUILTIN_MASK_FOR_LOAD:
     case ALTIVEC_BUILTIN_MASK_FOR_STORE:
       {
-	int icode = (int) CODE_FOR_altivec_lvsr;
+	int icode = (BYTES_BIG_ENDIAN ? (int) CODE_FOR_altivec_lvsr
+		     : (int) CODE_FOR_altivec_lvsl);
 	enum machine_mode tmode = insn_data[icode].operand[0].mode;
 	enum machine_mode mode = insn_data[icode].operand[1].mode;
 	tree arg;

gcc/config/rs6000/vector.md

@@ -936,8 +936,12 @@
    (match_operand:V16QI 3 "vlogical_operand" "")]
   "VECTOR_MEM_ALTIVEC_OR_VSX_P (<MODE>mode)"
 {
-  emit_insn (gen_altivec_vperm_<mode> (operands[0], operands[1], operands[2],
-				       operands[3]));
+  if (BYTES_BIG_ENDIAN)
+    emit_insn (gen_altivec_vperm_<mode> (operands[0], operands[1],
+    	      				 operands[2], operands[3]));
+  else
+    emit_insn (gen_altivec_vperm_<mode> (operands[0], operands[2],
+    	      				 operands[1], operands[3]));
   DONE;
 })