predicates.md (splat_input_operand): Don't call input_operand for MEMs.

	* config/rs6000/predicates.md (splat_input_operand): Don't call
	input_operand for MEMs.  Instead check for volatile and call
	memory_address_addr_space_p with modified mode.

From-SVN: r192590

gcc/ChangeLog

+2012-10-19  Alan Modra  <amodra@gmail.com>
+
+	* config/rs6000/predicates.md (splat_input_operand): Don't call
+	input_operand for MEMs.  Instead check for volatile and call
+	memory_address_addr_space_p with modified mode.
+
 2012-10-18  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (rdpmc): Remove expander.

gcc/config/rs6000/predicates.md

@@ -940,12 +940,16 @@
 {
   if (MEM_P (op))
     {
+      if (! volatile_ok && MEM_VOLATILE_P (op))
+	return 0;
       if (mode == DFmode)
 	mode = V2DFmode;
       else if (mode == DImode)
 	mode = V2DImode;
       else
-	gcc_unreachable ();        
+	gcc_unreachable ();
+      return memory_address_addr_space_p (mode, XEXP (op, 0),
+					  MEM_ADDR_SPACE (op));
     }
   return input_operand (op, mode);
 })