rs6000: Fix vec-init-6.c (PR87081)

Since a while we use a rldimi instead of rldicl/rldicr/or to combine
two words to one.


	PR target/87081
	* gcc.target/powerpc/vec-init-6.c: Fix expected asm.

From-SVN: r264789

gcc/testsuite/ChangeLog

+2018-10-02  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR target/87081
+	* gcc.target/powerpc/vec-init-6.c: Fix expected asm.
+
 2018-10-01  Martin Sebor  <msebor@redhat.com>
 
 	* gcc.dg/warn-strnlen-no-nul.c: New.

gcc/testsuite/gcc.target/powerpc/vec-init-6.c

@@ -9,8 +9,7 @@ merge (int a, int b, int c, int d)
   return (vector int) { a, b, c, d };
 }
 
-/* { dg-final { scan-assembler     "rldicr" } } */
-/* { dg-final { scan-assembler     "rldicl" } } */
+/* { dg-final { scan-assembler-times {\mrldi} 2 } } */
 /* { dg-final { scan-assembler     "mtvsrd" } } */
 /* { dg-final { scan-assembler-not "stw"    } } */
 /* { dg-final { scan-assembler-not "lxvw4x" } } */