testsuite: Adjust bb-slp-pr68892.c for AArch64

AArch64 passes the "not profitable" test because it treats vec_construct
as having a high-enough cost.  This means that we can try other vector
modes, which in turn causes "BB vectorization with gaps at the end of
a load is not supported" to be printed more than once.  The number of
times that we print the message doesn't seem important, so the patch
converts it to a plain scan-tree-dump.

gcc/testsuite/
	* gcc.dg/vect/bb-slp-pr68892.c: Don't XFAIL the profitability
	test for aarch64*-*-*.  Allow the "BB vectorization with gaps"
	message to be printed more than once.

diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c b/gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c
index 8cd3a6a1274effd523ed5643e22a023ef373e6c1..e9909cf0dfa99e0374a2d1879def0656d8e63f6f 100644 (file)
--- a/gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c
+++ b/gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c
@@ -15,6 +15,6 @@ void foo(void)
 
 /* ???  Due to the gaps we fall back to scalar loads which makes the
    vectorization profitable.  */
-/* { dg-final { scan-tree-dump "not profitable" "slp2" { xfail *-*-* } } } */
-/* { dg-final { scan-tree-dump-times "BB vectorization with gaps at the end of a load is not supported" 1 "slp2" } } */
-/* { dg-final { scan-tree-dump-times "Basic block will be vectorized" 1 "slp2" } } */
+/* { dg-final { scan-tree-dump "not profitable" "slp2" { xfail { ! aarch64*-*-* } } } } */
+/* { dg-final { scan-tree-dump "BB vectorization with gaps at the end of a load is not supported" "slp2" } } */
+/* { dg-final { scan-tree-dump-times "Basic block will be vectorized" 1 "slp2" { xfail aarch64*-*-* } } } */