From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1666) id 91272385515D; Tue, 29 Nov 2022 09:26:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 91272385515D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1669713964; bh=OVQXDx4lDd3KJcLCn7Q+nGKEby+2sZD13YGnl3M43ec=; h=From:To:Subject:Date:From; b=pgruZFWyi6ogf6c2tJbsETSz66CcsYjHtzqBFz1zoeJz3i24gnTDQqDunvFGJSDX8 ttPXkMs8GtUb4zuhIjfve2JJKSr/IjP+v6+eLTZSG3lbc7ObnfHtqXQNtjvKqZL5Ou usyr02E9unQ1HfrEMhAs0WKgxn8xmBoEgPnNvBLI= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Richard Biener To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-4385] tree-optimization/107898 - ICE with -Walloca-larger-than X-Act-Checkin: gcc X-Git-Author: Richard Biener X-Git-Refname: refs/heads/master X-Git-Oldrev: 5894a8179687b7028d093584102d204af422cfd3 X-Git-Newrev: 9948daa4fd0f0ea0a9d56c2fefe1bca478554d27 Message-Id: <20221129092604.91272385515D@sourceware.org> Date: Tue, 29 Nov 2022 09:26:04 +0000 (GMT) List-Id: https://gcc.gnu.org/g:9948daa4fd0f0ea0a9d56c2fefe1bca478554d27 commit r13-4385-g9948daa4fd0f0ea0a9d56c2fefe1bca478554d27 Author: Richard Biener Date: Tue Nov 29 09:03:46 2022 +0100 tree-optimization/107898 - ICE with -Walloca-larger-than The following avoids ICEing with a mismatched prototype for alloca and -Walloca-larger-than using irange for checks which doesn't like mismatched types. PR tree-optimization/107898 * gimple-ssa-warn-alloca.cc (alloca_call_type): Check the type of the alloca argument is compatible with size_t before querying ranges. Diff: --- gcc/gimple-ssa-warn-alloca.cc | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/gimple-ssa-warn-alloca.cc b/gcc/gimple-ssa-warn-alloca.cc index 83a241a3a4b..dcc62ca77bf 100644 --- a/gcc/gimple-ssa-warn-alloca.cc +++ b/gcc/gimple-ssa-warn-alloca.cc @@ -217,6 +217,7 @@ alloca_call_type (gimple *stmt, bool is_vla) int_range_max r; if (warn_limit_specified_p (is_vla) && TREE_CODE (len) == SSA_NAME + && types_compatible_p (TREE_TYPE (len), size_type_node) && get_range_query (cfun)->range_of_expr (r, len, stmt) && !r.varying_p ()) {