From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by sourceware.org (Postfix) with ESMTPS id 17A10383F859 for ; Fri, 7 Aug 2020 15:00:02 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 17A10383F859 Received: by mail-pf1-x432.google.com with SMTP id d188so1128881pfd.2 for ; Fri, 07 Aug 2020 08:00:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-transfer-encoding:content-language; bh=rpepBXU6rQt4H8SB69t4Vn3D4ypxo/42DypNELa/u2o=; b=O89TuRUlYUnr+kqNFov69jNheNiukkSNfXJWHdCwpXQQj5ijXWROcJBUlwtt8b2efU JdKPIYE9OOI62EXOh+ORreE1zJByFy7F0f91Bps9ECJ5c20RdgjkEwpvY8zpglKVgfku sVwySpZixDzanhWwVQA3T1M9NUZxo43CFwCTeZCZ1S2Yag8x8z7aH1PZ6vPmRQfyzEZw J3IZH9w2uNZLRBoI2yLSm5wfo7NChUTTBdeQNftckE4EPBeR2+C12bRHqRtxJQr8QQj9 nAXv1rLhlssjCEOY5GUzJz2rawwy1YFmNa6HIWyXFzkjHfn2PRKFaIbkG7Lxng9MM9GH ppfA== X-Gm-Message-State: AOAM5308Ai9QzPIFj2x5zHK9zilIk04BswlKv1EM4TV5hvSPKyOBNIXj s50bC0yvNfBMgnZ13ZgTP6h2R5zduCo= X-Google-Smtp-Source: ABdhPJx2VA0ZZlznJnCpGzmuHOh1YIPiuHtrvcWmz4+PQiMk5EzKgfRDP4QhDojkls3G5mjp5d3GdQ== X-Received: by 2002:a63:485f:: with SMTP id x31mr12029252pgk.49.1596812400702; Fri, 07 Aug 2020 08:00:00 -0700 (PDT) Received: from [192.168.2.206] (S0106306023d77311.pk.shawcable.net. [24.69.84.145]) by smtp.gmail.com with ESMTPSA id y6sm12854837pfr.61.2020.08.07.07.59.59 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 07 Aug 2020 08:00:00 -0700 (PDT) To: gcc-help@gcc.gnu.org From: dave Subject: making double type default to 80 or 128 bytes Message-ID: Date: Fri, 7 Aug 2020 07:59:58 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-help@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-help mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Aug 2020 15:00:03 -0000 Is it possible to modify the gcc compiler so that recompiling existing code and libraries will produce longer doubles (80 or 128 bytes) without having to re declare all the double types.  This may be a stupid question but I'm looking for a quick fix to see if extra precision helps with an optimization problem. Thanks.