[PATCH] testsuite: Add -fno-tree-loop-distribute-patterns for s390.

[Robin Dapp via Gcc-patches]

Hi,

in gcc.dg/Wuse-after-free-2.c we try to detect a use-after-free.  On
s390 the test's while loop is converted into a rawmemchr builtin making
it impossible to determine that the pointers *p and *q are related.

Therefore, disable the tree loop distribute patterns pass on s390 for
this test.

OK for trunk?

Regards
 Robin

gcc/testsuite/ChangeLog:

        * gcc.dg/Wuse-after-free-2.c:
        Add -fno-tree-loop-distribute-patterns for s390*.


---
diff --git a/gcc/testsuite/gcc.dg/Wuse-after-free-2.c
b/gcc/testsuite/gcc.dg/Wuse-after-free-2.c
index 9f7ed4529f0..3a8f690e9f8 100644
--- a/gcc/testsuite/gcc.dg/Wuse-after-free-2.c
+++ b/gcc/testsuite/gcc.dg/Wuse-after-free-2.c
@@ -1,6 +1,8 @@
 /* PR middle-end/104232 - spurious -Wuse-after-free after conditional free
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-additional-options "-fno-tree-loop-distribute-patterns" {
target { s390*-*-* } } }
+   */

 void free (void*);

-- 
2.35.1