testsuite/111125 - disable BB vectorization for the test

Message ID 20230824085931.5282A385414C@sourceware.org
State Accepted
Headers
Series testsuite/111125 - disable BB vectorization for the test |

Checks

Context Check Description
snail/gcc-patch-check success Github commit url

Commit Message

Richard Biener Aug. 24, 2023, 8:58 a.m. UTC
  The test is for loop vectorization producing non-canonical
multiplications.  We can now BB vectorize the whole function
when the target supports .REDUC_PLUS for V2SImode but we don't
have a dejagnu selector for that.  Disable BB vectorization
like we disabled epilogue vectorization.

Tested on aarch64-linux, pushed.

	PR testsuite/111125
	* gcc.dg/vect/pr53773.c: Disable BB vectorization.
---
 gcc/testsuite/gcc.dg/vect/pr53773.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
  

Patch

diff --git a/gcc/testsuite/gcc.dg/vect/pr53773.c b/gcc/testsuite/gcc.dg/vect/pr53773.c
index 7f8229571ec..213e74e0b9d 100644
--- a/gcc/testsuite/gcc.dg/vect/pr53773.c
+++ b/gcc/testsuite/gcc.dg/vect/pr53773.c
@@ -1,7 +1,10 @@ 
 /* Disabling epilogues until we find a better way to deal with scans.  */
 /* { dg-additional-options "--param vect-epilogues-nomask=0" } */
 /* { dg-do compile } */
-/* { dg-additional-options "-fdump-tree-optimized" } */
+/* Disable BB vectorization, we now can cover the whole loop with that
+   when the target supports .REDUC_PLUS for integers, we don't have a
+   good target selector for this.  */
+/* { dg-additional-options "-fdump-tree-optimized -fno-tree-slp-vectorize" } */
 
 int
 foo (int integral, int decimal, int power_ten)