re PR testsuite/81010 (test case gcc.target/powerpc/pr56605.c fails starting with r248958)

	PR testsuite/81010
	* gcc.target/powerpc/pr56605.c: Update various dg- directives to
	better match other tests which require vsx.  Verify the zero
	extension is part of the test in the combiner dump.

From-SVN: r257172

gcc/testsuite/ChangeLog

+2018-01-19  Jeff Law  <law@redhat.com>
+
+	PR testsuite/81010
+	* gcc.target/powerpc/pr56605.c: Update various dg- directives to
+	better match other tests which require vsx.  Verify the zero
+	extension is part of the test in the combiner dump.
+
 2018-01-29  Marek Polacek  <polacek@redhat.com>
 
 	PR c/83966

gcc/testsuite/gcc.target/powerpc/pr56605.c

 /* PR rtl-optimization/56605 */
-/* { dg-do compile { target { powerpc64-*-* && lp64 } } } */
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-skip-if "" { powerpc*-*-darwin* } } */
+/* { dg-require-effective-target powerpc_vsx_ok } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
-/* { dg-options "-O3 -mvsx -mcpu=power7 -fno-unroll-loops -fdump-rtl-loop2_doloop" } */
+/* { dg-options "-O3 -mvsx -mcpu=power7 -fno-unroll-loops -fdump-rtl-combine" } */
 
 void foo (short* __restrict sb, int* __restrict ia)
 {
@@ -10,4 +12,5 @@ void foo (short* __restrict sb, int* __restrict ia)
     ia[i] = (int) sb[i];
 }
 
-/* { dg-final { scan-rtl-dump-times "\\\(compare:CC \\\(subreg:SI \\\(reg:DI" 1 "loop2_doloop" } } */
+/* { dg-final { scan-rtl-dump-times "\\\(compare:CC \\\(zero_extend:DI \\\(reg:SI" 1 "combine" } } */
+