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 2FA713858D32; Mon, 15 Apr 2024 17:36:28 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2FA713858D32
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1713202588;
	bh=S8OMXeGvx22SlUL0iHDFkcGRc55hLmjowgVZjR8wRrY=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=CYh3r54ojlOM0/dc+3XJ7D8EGi/ff7/rQgL3o7Gdnb9N/WMUoGxm4yXPXL8axqMRz
	 b6fxuYBbznGY79KFrTL7wm8wpdcrHjLGbc5XhqKzTi3EzbuckwdoAzlaQFHkyZpui3
	 sk1YcVR2LnzyJsGg7srXmVzK1QhUXRG8texq0zWE=
From: "patrick at rivosinc dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/114665] [14] RISC-V rv64gcv: miscompile at -O3
Date: Mon, 15 Apr 2024 17:36:27 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: patrick at rivosinc 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-114665-4-vphvQAeB7s@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-114665-4@http.gcc.gnu.org/bugzilla/>
References: <bug-114665-4@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=3D114665

--- Comment #4 from Patrick O'Neill <patrick at rivosinc dot com> ---
Reran as requested in pr114668. Still present with that fix.

I'll triage some other testcases and file those as well. Hopefully one of t=
hem
is a duplicate to this one that is easily reproducible.

GCC: r14-9976-gf8409c3109d
QEMU: v8.2.1 (f48c205fb42be48e2e47b7e1cd9a2802e5ca17b0)

Commands:
> /scratch/tc-testing/tc-apr-15/build-rv64gcv/bin/riscv64-unknown-linux-gnu=
-gcc -march=3Drv64gcv -O3 red.c -o red.out
> /scratch/tc-testing/tc-apr-15/build-rv64gcv/bin/qemu-riscv64 red.out
35
> /scratch/tc-testing/tc-apr-15/build-rv64gcv/bin/riscv64-unknown-linux-gnu=
-gcc red.c -o red.out
> /scratch/tc-testing/tc-apr-15/build-rv64gcv/bin/qemu-riscv64 red.out
FFFFFFB5=