From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 26DC0385AC2D; Tue, 30 Nov 2021 23:20:35 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 26DC0385AC2D From: "joseph at codesourcery dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/103491] nextafter does not raise "overflow" and "inexact" floating-point exceptions Date: Tue, 30 Nov 2021 23:20:34 +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: 11.2.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: joseph at codesourcery dot com 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: 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: Tue, 30 Nov 2021 23:20:35 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103491 --- Comment #3 from joseph at codesourcery dot com --- This testcase is incorrect. This call to nextafter has a finite result,=20 so it's correct that no exceptions are raised and so an exit status of 1=20 from the provided testcase is what should be expected. A GCC bug could only be demonstrated if the call were elided for arguments= =20 for which overflow or underflow occurs (such as (DBL_MAX, INFINITY) or=20 (DBL_MIN, 0) or (DBL_TRUE_MIN, 0)). I haven't tested whether that is the=20 case.=