From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 71328 invoked by alias); 23 Nov 2016 22:14:49 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 69697 invoked by uid 89); 23 Nov 2016 22:14:43 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=cgen, 2s, usi X-HELO: mail-pg0-f66.google.com Received: from mail-pg0-f66.google.com (HELO mail-pg0-f66.google.com) (74.125.83.66) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 23 Nov 2016 22:14:40 +0000 Received: by mail-pg0-f66.google.com with SMTP id 3so1933622pgd.0 for ; Wed, 23 Nov 2016 14:14:40 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=U2up8dVNpsJkPCr6AQye9hHvTo4tCBx4D2j2dpwTjls=; b=eNjeIGsz0NU+aQtahPsqN8V33DFWffv0EOJIrlve/wYGZE45phxeEm3XsIWQSuJVoJ sNWViWzIZJatoprRlxaAQ5NEIreR6CDhH86davnNctU49SOaJ8L83CRKbxQYXnOCJTIO BnK1R5lzrEBRvq0HanCeP8XJ0Y476YfqZ68ZtdHfGucVRp6o+YLApG7KF+ttP4Wcwqv1 a9P/El6eTf0p6CRj3uxO5EEpDntNL2qigCzvwDtYBuhZtua78c/yKIzihoVS7oWKjstB 20XLw5nXWLl7zsbuE1OctNJpBI60gKODkDWQAgtuNBSxpzZGidUrDHvo0TlwLdP6vqNH nEZw== X-Gm-Message-State: AKaTC03z6ssbVuVEtIjYM6hnOB4p1k9Iz8ytbcSIF//6xuIE9O9uZhCn7b5aCGIw5KTt6Q== X-Received: by 10.99.143.90 with SMTP id r26mr8982709pgn.164.1479939279333; Wed, 23 Nov 2016 14:14:39 -0800 (PST) Received: from lianli.shorne-pla.net (z14.124-44-185.ppp.wakwak.ne.jp. [124.44.185.14]) by smtp.gmail.com with ESMTPSA id y29sm54963105pfd.63.2016.11.23.14.14.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 Nov 2016 14:14:38 -0800 (PST) Received: from lianli.shorne-pla.net (localhost [127.0.0.1]) by lianli.shorne-pla.net (8.15.2/8.15.2) with ESMTPS id uANMEan9001920 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 24 Nov 2016 07:14:36 +0900 Received: (from shorne@localhost) by lianli.shorne-pla.net (8.15.2/8.15.2/Submit) id uANMEaGm001919; Thu, 24 Nov 2016 07:14:36 +0900 From: Stafford Horne To: gdb-patches@sourceware.org Cc: openrisc@lists.librecores.org, Peter Gavin Subject: [PATCH 02/18] sim: cgen: add mul-o1flag, mul-o2flag RTL functions to CGEN Date: Wed, 23 Nov 2016 22:16:00 -0000 Message-Id: <1479939272-1754-3-git-send-email-shorne@gmail.com> In-Reply-To: <1479939272-1754-1-git-send-email-shorne@gmail.com> References: <1479939272-1754-1-git-send-email-shorne@gmail.com> X-IsSubscribed: yes X-SW-Source: 2016-11/txt/msg00715.txt.bz2 From: Peter Gavin * sim/common/ChangeLog 2012-03-14 Peter Gavin * add mul-o1flag (1's complement unsigned multiply overflow flag) and mul-o2flag (2's complement signed multiply overflow flag) * cgen-ops.h: (MUL1OFSI) new function: 1's complement (MUL2OFSI) new function: 2's complement --- sim/common/cgen-ops.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/sim/common/cgen-ops.h b/sim/common/cgen-ops.h index 7ff1b4d..81ba02c 100644 --- a/sim/common/cgen-ops.h +++ b/sim/common/cgen-ops.h @@ -631,6 +631,22 @@ SUBOFQI (QI a, QI b, BI c) return res; } +SEMOPS_INLINE BI +MUL2OFSI (SI a, SI b) +{ + DI tmp = MULDI (EXTSIDI(a), EXTSIDI(b)); + BI res = tmp < -0x80000000LL || tmp > 0x7fffffffLL; + return res; +} + +SEMOPS_INLINE BI +MUL1OFSI (USI a, USI b) +{ + UDI tmp = MULDI (ZEXTSIDI(a), ZEXTSIDI(b)); + BI res = (tmp > 0xFFFFFFFFULL); + return res; +} + #else SI ADDCSI (SI, SI, BI); @@ -651,6 +667,8 @@ UBI ADDOFQI (QI, QI, BI); QI SUBCQI (QI, QI, BI); UBI SUBCFQI (QI, QI, BI); UBI SUBOFQI (QI, QI, BI); +BI MUL1OFSI (SI a, SI b); +BI MUL2OFSI (SI a, SI b); #endif -- 2.7.4