From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D63903851C3B; Thu, 4 Jun 2020 22:10:31 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D63903851C3B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1591308631; bh=bJtY+d16INCpz9erjBWX0Ym/Fg+NpMFUJ4JGv5RO3RY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=n35yq7Jm6WeMax9iR64E4bF5W5TjzewWrb0E7MvFg+XBXCcABECjNkWwbWaiG36Ni 4rJ91W1/ZLrb1IfPRrP6upw10gbA6m1BiWv9ZHdVCwlY3GdlfPyvFyvxkbsEXKNsQW USjDfPWBsu1bg9vl1pYFwPIgcYl8brPB5v7ZyWEQ= From: "cvs-commit at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/10138] warn for uninitialized arrays passed as const* arguments Date: Thu, 04 Jun 2020 22:10:31 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 3.2 X-Bugzilla-Keywords: diagnostic, patch X-Bugzilla-Severity: enhancement X-Bugzilla-Who: cvs-commit at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: msebor at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.0 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: Thu, 04 Jun 2020 22:10:31 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D10138 --- Comment #30 from CVS Commits --- The master branch has been updated by Martin Sebor : https://gcc.gnu.org/g:b825a22890740f341eae566af27e18e528cd29a7 commit r11-959-gb825a22890740f341eae566af27e18e528cd29a7 Author: Martin Sebor Date: Thu Jun 4 16:06:10 2020 -0600 Implement a solution for PR middle-end/10138 and PR middle-end/95136. PR middle-end/10138 - warn for uninitialized arrays passed as const arguments PR middle-end/95136 - missing -Wuninitialized on an array access with a variable offset gcc/c-family/ChangeLog: PR middle-end/10138 PR middle-end/95136 * c-attribs.c (append_access_attrs): Handle attr_access::none. (handle_access_attribute): Same. gcc/ChangeLog: PR middle-end/10138 PR middle-end/95136 * attribs.c (init_attr_rdwr_indices): Move function here. * attribs.h (rdwr_access_hash, rdwr_map): Define. (attr_access): Add 'none'. (init_attr_rdwr_indices): Declared function. * builtins.c (warn_for_access)): New function. (check_access): Call it. * builtins.h (checK-access): Add an optional argument. * calls.c (rdwr_access_hash, rdwr_map): Move to attribs.h. (init_attr_rdwr_indices): Declare extern. (append_attrname): Handle attr_access::none. (maybe_warn_rdwr_sizes): Same. (initialize_argument_information): Update comments. * doc/extend.texi (attribute access): Document 'none'. * tree-ssa-uninit.c (struct wlimits): New. (maybe_warn_operand): New function. (maybe_warn_pass_by_reference): Same. (warn_uninitialized_vars): Refactor code into maybe_warn_operan= d. Also call for function calls. (pass_late_warn_uninitialized::execute): Adjust comments. (execute_early_warn_uninitialized): Same. gcc/testsuite/ChangeLog: PR middle-end/10138 PR middle-end/95136 * c-c++-common/Wsizeof-pointer-memaccess1.c: Prune out valid Wuninitialized. * c-c++-common/uninit-pr51010.c: Adjust expected warning format. * c-c++-common/goacc/uninit-dim-clause.c: Same. * c-c++-common/goacc/uninit-firstprivate-clause.c: Same. * c-c++-common/goacc/uninit-if-clause.c: Same. * c-c++-common/gomp/pr70550-1.c: Same. * c-c++-common/gomp/pr70550-2.c: Adjust. * g++.dg/20090107-1.C: Same. * g++.dg/20090121-1.C: Same. * g++.dg/ext/attr-access.C: Avoid -Wuninitialized. * gcc.dg/tree-ssa/forwprop-6.c: Prune out -Wuninitialized. * gcc.dg/Warray-bounds-52.c: Prune out valid -Wuninitialized. * gcc.dg/Warray-bounds-53.c: Same. * gcc.dg/Warray-bounds-54.c: Same. * gcc.dg/Wstringop-overflow-33.c: New test. * gcc.dg/attr-access-none.c: New test. * gcc.dg/attr-access-read-only.c: Adjust. * gcc.dg/attr-access-read-write.c: Same. * gcc.dg/attr-access-write-only.c: Same. * gcc.dg/pr71581.c: Adjust text of expected warning. * gcc.dg/uninit-15.c: Same. * gcc.dg/uninit-32.c: New test. * gcc.dg/uninit-33.c: New test. * gcc.dg/uninit-34.c: New test. * gcc.dg/uninit-36.c: New test. * gcc.dg/uninit-B-O0.c: Adjust text of expected warning. * gcc.dg/uninit-I-O0.c: Same. * gcc.dg/uninit-pr19430-O0.c: Same. * gcc.dg/uninit-pr19430.c: Same. * gcc.dg/uninit-pr95136.c: New test. * gfortran.dg/assignment_4.f90: Expect -Wuninitialized. * gfortran.dg/goacc/uninit-dim-clause.f95: Adjust text of expec= ted warning. * gfortran.dg/goacc/uninit-firstprivate-clause.f95 * gfortran.dg/goacc/uninit-if-clause.f95 * gfortran.dg/pr66545_2.f90=