2013-02-08  Jakub Jelinek  <jakub@redhat.com>

	PR target/56256
	* config/rs6000/rs6000.h (ASSEMBLER_DIALECT): Define.

	* gcc.target/powerpc/pr56256.c: New test.

--- gcc/config/rs6000/rs6000.h.jj	2013-01-11 09:03:12.000000000 +0100
+++ gcc/config/rs6000/rs6000.h	2013-02-08 16:46:35.988977363 +0100
@@ -356,6 +356,12 @@ extern const char *host_detect_local_cpu
 #define PROCESSOR_DEFAULT   PROCESSOR_PPC603
 #define PROCESSOR_DEFAULT64 PROCESSOR_RS64A
 
+/* Specify the dialect of assembler to use.  Only new mnemonics are supported
+   starting with GCC 4.8, i.e. just one dialect, but for backwards
+   compatibility with older inline asm ASSEMBLER_DIALECT needs to be
+   defined.  */
+#define ASSEMBLER_DIALECT 1
+
 /* Debug support */
 #define MASK_DEBUG_STACK	0x01	/* debug stack applications */
 #define	MASK_DEBUG_ARG		0x02	/* debug argument handling */
--- gcc/testsuite/gcc.target/powerpc/pr56256.c.jj	2013-02-08 17:00:11.096171281 +0100
+++ gcc/testsuite/gcc.target/powerpc/pr56256.c	2013-02-08 17:09:05.448004295 +0100
@@ -0,0 +1,11 @@
+/* PR target/56256 */
+/* { dg-do assemble } */
+/* { dg-options "-O2" } */
+
+int
+foo (void)
+{
+  int a;
+  __asm__ ("{lil|li} %0,%1" : "=r" (a) : "I" (26));
+  return a;
+}