[gcc(refs/users/aoliva/heads/testme)] disable ldist for test, to restore vectorizing-candidate loop
Alexandre Oliva
aoliva@gcc.gnu.org
Fri Mar 24 06:24:26 GMT 2023
https://gcc.gnu.org/g:5865336c2587de52565350175c19b2a36f31a86e
commit 5865336c2587de52565350175c19b2a36f31a86e
Author: Alexandre Oliva <oliva@adacore.com>
Date: Thu Mar 23 00:44:22 2023 -0300
disable ldist for test, to restore vectorizing-candidate loop
The loop we're supposed to try to vectorize in
gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c is turned into a memset
before the vectorizer runs.
Various other tests in this set have already run into this, and the
solution has been to disable this loop distribution transformation,
enabled at -O2, so that the vectorizer gets a chance to transform the
loop and, in this testcase, fail to do so.
for gcc/testsuite/ChangeLog
* gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c: Disable
ldist.
Diff:
---
gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c b/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c
index c57f065cccd..bb206ffd972 100644
--- a/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c
+++ b/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c
@@ -1,4 +1,5 @@
/* { dg-require-effective-target vect_int } */
+/* { dg-additional-options "-fno-tree-loop-distribute-patterns" } */
#include <stdarg.h>
#include "../../tree-vect.h"
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