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Date: Wed, 26 Apr 2023 13:47:49 +0200 Message-Id: <20230426114752.336928-4-aldyh@redhat.com> In-Reply-To: <20230426114752.336928-1-aldyh@redhat.com> References: <20230426114752.336928-1-aldyh@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Aldy Hernandez via Gcc-patches From: Aldy Hernandez Reply-To: Aldy Hernandez Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1764239565491303025?= X-GMAIL-MSGID: =?utf-8?q?1764239565491303025?= gcc/ChangeLog: * tree-ssa-strlen.cc (compare_nonzero_chars): Convert to wide_ints. --- gcc/tree-ssa-strlen.cc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/gcc/tree-ssa-strlen.cc b/gcc/tree-ssa-strlen.cc index 0bbcb04834f..de785281b27 100644 --- a/gcc/tree-ssa-strlen.cc +++ b/gcc/tree-ssa-strlen.cc @@ -359,10 +359,10 @@ compare_nonzero_chars (strinfo *si, gimple *stmt, of the length range are equal return the result of the comparison same as in the constant case. Otherwise return a conservative result. */ - tree lower = wide_int_to_tree (vr.type (), vr.lower_bound ()); - tree upper = wide_int_to_tree (vr.type (), vr.upper_bound ()); - int cmpmin = compare_tree_int (lower, off); - if (cmpmin > 0 || tree_int_cst_equal (lower, upper)) + signop sign = TYPE_SIGN (vr.type ()); + unsigned prec = TYPE_PRECISION (vr.type ()); + int cmpmin = wi::cmp (vr.lower_bound (), wi::uhwi (off, prec), sign); + if (cmpmin > 0 || vr.singleton_p ()) return cmpmin; return -1;