From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 108EEC4332D for ; Wed, 10 Mar 2021 22:11:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E50BD64DE5 for ; Wed, 10 Mar 2021 22:11:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233171AbhCJWLP (ORCPT ); Wed, 10 Mar 2021 17:11:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233528AbhCJWLH (ORCPT ); Wed, 10 Mar 2021 17:11:07 -0500 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D74AC061574 for ; Wed, 10 Mar 2021 14:11:07 -0800 (PST) Received: by mail-ed1-x52f.google.com with SMTP id b7so86595edz.8 for ; Wed, 10 Mar 2021 14:11:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=FNbUUObvWvj/wnufy2aMSRBmJG00h2J6KXs/pLxUg1M=; b=EeXuiWL1RqKIxn7HUJrFvWQ3RKfrIYNX1PE4lIZMiDZpLnba09momZT7F4ialCH7WK eHLuGWSy/JFF4RurC/6O/OIzsGpTMXjMd0yerWymAFUIMFg0CvZKSta0WX8Ux6TOFiiE 0uem6gN7+GmHtBxe1oaI1NBQEICngnU/cbSGg+lCHcOVM0CRh0tkR/rusILluCcEf2F4 VMgU5CZxIb+4fQy1k0N6IqX5/FNHQ25f5HlEN8uvHflCk+AQBiY+pOEoJenqZPrAqz4/ 0SwfPpbpuviTtRY8xckSUVPwXyupnQPD3hSRpR+mV1uDWRFo1/QwkVBiOVgwRuTm2pcQ NOQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=FNbUUObvWvj/wnufy2aMSRBmJG00h2J6KXs/pLxUg1M=; b=hHsaaVMCQwfo1La2Jn419f9wbWoKodjcKfV9dF9f5TKVGdy5uxv1V0iiRmoP7VGwP4 zYo6YEbq8ZHSQXYB1dTWDgC1en2q6nMXasi0Q4aRfVisPss9wxPHZY8gGVaRGYrzDBKq wdlkqT00Z6U6ZA3bhmvUc8K/8M2D5S8WKfaGwX9GRChybbT1qvfEGRrXq+Hpx0J9wEJf 6OLoQLU+vpET7zNyrydq52wmVKfVFDBalOosI5fxziK61aGOl5XKJxQ9jDTj8a6vZ2TK he0LBZkb50dE2620Qo5lISaZLTWhTMums+M/jS6tr7b0u31Ic8QnUi0/PB6kfU9wzDOB 1w+Q== X-Gm-Message-State: AOAM530tsVX0OM77YNZUUof6Hzkyie4N/BMHFCe3EEE0N6zlsTB+KM1l 02E/l72M31J6kwjlySSTjJZEBcsXMd0= X-Google-Smtp-Source: ABdhPJzNEOy2tb8AVyGiVSXuIiXjfzDRKwUTxlaOh+75VrdS7ZVm7gUDcejMr5rmIFYBcSy+H3GGIA== X-Received: by 2002:aa7:d656:: with SMTP id v22mr5461050edr.119.1615414265955; Wed, 10 Mar 2021 14:11:05 -0800 (PST) Received: from localhost.localdomain ([2a02:a03f:b7fe:f700:196c:c08:d4ab:a1ba]) by smtp.gmail.com with ESMTPSA id ld19sm344326ejb.102.2021.03.10.14.11.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Mar 2021 14:11:05 -0800 (PST) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Luc Van Oostenryck Subject: [PATCH 8/9] simplify (x | M) cmps C Date: Wed, 10 Mar 2021 22:49:49 +0100 Message-Id: <20210310214950.84192-9-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210310214950.84192-1-luc.vanoostenryck@gmail.com> References: <20210310214950.84192-1-luc.vanoostenryck@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org Signed-off-by: Luc Van Oostenryck --- simplify.c | 14 ++++++++++++++ validation/optim/cmps-or0.c | 1 - 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/simplify.c b/simplify.c index 865fadfb590e..e721f9f860a0 100644 --- a/simplify.c +++ b/simplify.c @@ -1324,6 +1324,20 @@ static int simplify_compare_constant(struct instruction *insn, long long value) if ((value & bits) != bits) return replace_with_value(insn, 1); break; + case OP_SET_LE: + value = sign_extend(value, def->size); + if (bits & sign_bit(def->size)) { + if (value >= -1) + return replace_with_value(insn, 1); + } + break; + case OP_SET_GT: + value = sign_extend(value, def->size); + if (bits & sign_bit(def->size)) { + if (value >= -1) + return replace_with_value(insn, 0); + } + break; } break; case OP_SEXT: // sext(x) cmp C --> x cmp trunc(C) diff --git a/validation/optim/cmps-or0.c b/validation/optim/cmps-or0.c index 40a2092c58a4..70fcb024a846 100644 --- a/validation/optim/cmps-or0.c +++ b/validation/optim/cmps-or0.c @@ -15,7 +15,6 @@ int cmps_ior_gt_0(int a) { return ((a | MASK) > 0) EQ(0); } /* * check-name: cmps-or0 * check-command: test-linearize -Wno-decl $file - * check-known-to-fail * * check-output-ignore * check-output-returns: 1 -- 2.30.0