From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A3CC9388CC0E; Sat, 27 Feb 2021 14:23:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A3CC9388CC0E From: "nok.raven at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/99305] New: [11 Regression] range condition simplification after inlining Date: Sat, 27 Feb 2021 14:23:57 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: nok.raven at gmail 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: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: 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, 27 Feb 2021 14:23:57 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99305 Bug ID: 99305 Summary: [11 Regression] range condition simplification after inlining Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: nok.raven at gmail dot com Target Milestone: --- bool foo(char c) { return c >=3D '0' && c <=3D '9'; } bool bar(char c) { return c !=3D '\0' && foo(c); } bool foobar(char c) { return c !=3D '\0' && c >=3D '0' && c <=3D '9'; } // GCC 10 bar(char): sub edi, 48 cmp dil, 9 setbe al ret // GCC 11 bar(char): xor eax, eax test dil, dil je .L3 sub edi, 48 cmp dil, 9 setbe al .L3: ret https://godbolt.org/z/z4r9cv=