[Bug tree-optimization/123207] [16 Regression] Miscompare of 526.blender_r with -O3 on x86_64 since r16-6133-gca8d97f8cb8d28

[pheeck at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123207

Filip Kastl <pheeck at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|needs-bisection             |
            Summary|[16 Regression] Miscompare  |[16 Regression] Miscompare
                   |of 526.blender_r with -O3   |of 526.blender_r with -O3
                   |on x86_64                   |on x86_64 since
                   |                            |r16-6133-gca8d97f8cb8d28
                 CC|                            |victorldn at gcc dot gnu.org

--- Comment #6 from Filip Kastl <pheeck at gcc dot gnu.org> ---
I've bisected this to r16-6133-gca8d97f8cb8d28

commit ca8d97f8cb8d282c190183e9c297d5e0490bab4e
Author:     Victor Do Nascimento <victor.donascimento@arm.com>
AuthorDate: Thu May 8 15:28:05 2025 +0100
Commit:     Victor Do Nascimento <victor.donascimento@arm.com>
CommitDate: Mon Dec 15 15:27:40 2025 +0000

    vect: Relax known iteration number constraint