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.
Tested on aarch64-linux-gnu (with and without SVE), arm-linux-gnueabihf
and x86_64-linux-gnu. OK to install?
Richard
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.
---
gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c
b/gcc/testsuite/gcc.dg/vect/bb-slp-pr68892.c
index 8cd3a6a1274..e9909cf0dfa 100644
--- 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*-*-* } } } */
