From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 4C3E23858CDA; Mon, 8 Apr 2024 21:46:31 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4C3E23858CDA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1712612791; bh=kVtdb3vMhzblsVQcxRNzCWfeksq/9C2IpaoxzIXKymo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Xd23kzrYQy+JTQ//0xREhfiEvePeEtBDvJ45kM2UGbVRNvhyz1knUkEBI+1Zh7eCp +pceN2NTbidKKUpLZj9ZNaqaUmTwk6pOx35dUyvgF6uN7HvRG4EADer62WErsZI+NF 69diritI+VVfAR8FXH92292nS3zqQrdhl6oOG/U0= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/114647] missing DSE when looping over a VLA Date: Mon, 08 Apr 2024 21:46:30 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: enhancement X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: NEW 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: bug_status cf_reconfirmed_on everconfirmed 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114647 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2024-04-08 Ever confirmed|0 |1 --- Comment #1 from Andrew Pinski --- GCC also does not delete allocated memory when used in loop: ``` void foo(int n) { { int *a =3D __builtin_malloc(n*sizeof(int)); for (int i=3D0;i