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From: "thiago.bauermann at linaro dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/116010] [15 regression] vectorization regressions on arm
 and aarch64 since r15-491-gc290e6a0b7a9de
Date: Mon, 22 Jul 2024 22:29:23 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D116010

--- Comment #4 from Thiago Jung Bauermann <thiago.bauermann at linaro dot o=
rg> ---
(In reply to Richard Biener from comment #2)
> The gfortran.dg/vect/vect-8.f90 testcase is incredibly bad because it has=
 so
> many loops that are or are not vectorized.  It should ideally be split up.
>=20
> But I think the blame is incorrect, the test uses
> -fno-tree-loop-distribute-patterns and thus isn't effected by the rev in
> question.

Today I confirmed the git bisect by reverting commit c290e6a0b7a9 from toda=
y's
trunk (commit 88d16194d0c8 at the time of my test), and observing that this
makes gfortran.dg/vect/vect-8.f90 pass again. The commit influences the
testcase somehow.

> As Andrew says the fix for the other regression is trivial, I'm leaving t=
hat
> to ARM folks as an exercise.

If that is the case, I will be happy to post a patch to the mailing list.=