From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 2BACF3858C53; Fri, 25 Aug 2023 18:15:19 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2BACF3858C53
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1692987319;
	bh=c0gq+rBEJTmpDn8pU59+XBtIOvrpcINZlJfRGvEHWMo=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=yj8BakPfDndqtbdKhovsyP2y71o23WWhAzgHL3Dsni7O0BPAaXrgK3lXb1bPVmZvl
	 g8G3FG0aliXqSXnGULY2VNmlkjhgCL3q8BARQlfYy49yZTR0TEb68pXNVpQZnh6ou9
	 CfTY/Mwgx+AgsU2Jj09MRozO3yC4D/yKg0tIqx7Q=
From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/111156] [14 Regression] aarch64
 aarch64/sve/mask_struct_store_4.c failures
Date: Fri, 25 Aug 2023 18:15:18 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dcb314 at hotmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-111156-4-f8DDkyJb9D@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-111156-4@http.gcc.gnu.org/bugzilla/>
References: <bug-111156-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111156

--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code seems to be:

struct median_estimator {
  long median;
  long step
} median_diff_ts[];
median_estimator_update_data, median_estimator_update_diff,
    median_estimator_update_median, mm_profile_print_i;
median_estimator_update(struct median_estimator *me) {
  if (__builtin_expect(me->step, 0))
    me->median =3D median_estimator_update_data;
  if (median_estimator_update_diff)
    me->step =3D median_estimator_update_median;
}
mm_profile_print() {
  mm_profile_print_i =3D 1;
  for (; mm_profile_print_i; mm_profile_print_i++)
    median_estimator_update(&median_diff_ts[mm_profile_print_i]);
}=