From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2136) id 16C423850876; Wed, 26 Apr 2023 11:50:31 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 16C423850876 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1682509831; bh=CKpiihRMgmGmFLlG3d30RHIMncOJfs2tk0Kg5/9eY90=; h=From:To:Subject:Date:From; b=WRs1yMsvJgJ/4j+jMJWr6k7TEs4aVmxtOnRg7MV/1xemao5B3tT03nF8wnvPYUhgi UXQcq2FTbRaXqYjOEU8U9U0ntsKWuq5YcP2CsE7WzlRtWVkgRC1q1ezYcZ5SkPHpHg d/d4ynftt0DWtFOhrCn7uh9Jraj0jjTTSYXjr560= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Aldy Hernandez To: gcc-cvs@gcc.gnu.org Subject: [gcc r14-258] Convert compare_nonzero_chars to wide_ints. X-Act-Checkin: gcc X-Git-Author: Aldy Hernandez X-Git-Refname: refs/heads/master X-Git-Oldrev: 637037f4e637563c4f50ed04adfa2baf90671491 X-Git-Newrev: fb5607ae6ad468fe1183b7a3b392d445010ada41 Message-Id: <20230426115031.16C423850876@sourceware.org> Date: Wed, 26 Apr 2023 11:50:31 +0000 (GMT) List-Id: https://gcc.gnu.org/g:fb5607ae6ad468fe1183b7a3b392d445010ada41 commit r14-258-gfb5607ae6ad468fe1183b7a3b392d445010ada41 Author: Aldy Hernandez Date: Thu Mar 2 16:56:12 2023 +0100 Convert compare_nonzero_chars to wide_ints. gcc/ChangeLog: * tree-ssa-strlen.cc (compare_nonzero_chars): Convert to wide_ints. Diff: --- 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;