From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 234A33858D28; Tue, 24 Jan 2023 18:42:40 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 234A33858D28 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1674585760; bh=p/2C9T7lBx0ytgz2LcCpRLF3M7ugWRW5jLDuaT7cGLw=; h=From:To:Subject:Date:In-Reply-To:References:From; b=gQZigFqx4ZAJCtYTZAdKb/ihsGWgus21dYDCzyHHStrXuJ+lwkHPBPphDiwdvfY6h eMdEQ8cvAn+vpRNH550zLtBNvxcMUKsA/3vNKOEmtQGZXAGto2gb0TLAY9N5t0SMi8 TpCGtmIUByS5+voMmdXW9lZMYfwtJFSdVlUjvJ3Y= From: "anlauf at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/108527] [13 Regression] ICE in compare_bound_int(): Bad expression Date: Tue, 24 Jan 2023 18:42:39 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: anlauf 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: cf_reconfirmed_on bug_status cc 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=3D108527 anlauf at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2023-01-24 Status|UNCONFIRMED |NEW CC| |anlauf at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from anlauf at gcc dot gnu.org --- Oh well. This fixes at least the first testcase: diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc index 94213cd3cd4..65e689c6f10 100644 --- a/gcc/fortran/resolve.cc +++ b/gcc/fortran/resolve.cc @@ -4732,6 +4732,10 @@ check_dimension (int i, gfc_array_ref *ar, gfc_array_spec *as) #define AR_START (ar->start[i] ? ar->start[i] : as->lower[i]) #define AR_END (ar->end[i] ? ar->end[i] : as->upper[i]) + /* Something has already gone wrong. Allow sane recovery. */ + if (ar->stride[i] =3D=3D NULL) + return false; + compare_result comp_start_end =3D compare_bound (AR_START, AR_END); /* Check for zero stride, which is not allowed. */=