From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E2B71385782F; Sat, 15 May 2021 14:13:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E2B71385782F From: "bouanto at zoho dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug jit/100380] Segfault when using inline asm Date: Sat, 15 May 2021 14:13:45 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: jit X-Bugzilla-Version: 10.3.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: bouanto at zoho dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: marxin at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 May 2021 14:13:46 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100380 --- Comment #4 from Antoni --- I just had a similar issue when developing a new feature for libgccjit and = it might be the same problem. If it is (I haven't checked in this case), here's what's happening: * The asm is replayed. * The asm tries to access the replayed variable (which wasn't replayed yet because it was created after the asm). * Segfault (the rest is not executed, but is shown to explain what's happening) * The variable is replayed (too late because it was NULL when accessed by = the asm). Again it's to be verified, and I'm not sure what should be the solution to = this problem because the mementos are replayed in the order they were created.=