From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14743 invoked by alias); 22 Jun 2015 12:58:47 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 14711 invoked by uid 48); 22 Jun 2015 12:58:43 -0000 From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/66618] Failure to diagnose non-constant initializer for static object with -O1 Date: Mon, 22 Jun 2015 12:58:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.8.4 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek 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 cc everconfirmed Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-06/txt/msg01916.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66618 Marek Polacek changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-06-22 CC| |mpolacek at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Marek Polacek --- Confirmed. What's going on here is that digest_init has 6630 inside_init = c_fully_fold (inside_init, require_constant, &maybe_const); 6631 inside_init = decl_constant_value_for_optimization (inside_init); and that decl_constant_value_for_optimization when optimizing is able to turn a "const int" into an integer constant. And an integer constant is fine as an initializer thus we don't error.