From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-x42d.google.com (mail-pf1-x42d.google.com [IPv6:2607:f8b0:4864:20::42d]) by sourceware.org (Postfix) with ESMTPS id 72F873857718 for ; Mon, 15 May 2023 13:41:57 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 72F873857718 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pf1-x42d.google.com with SMTP id d2e1a72fcca58-643a1fed360so7764009b3a.3 for ; Mon, 15 May 2023 06:41:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684158116; x=1686750116; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=zvnQVFFI5JCPPlHFCnMGSLwjcYDd6p2T/820lPKV9Zs=; b=lDAkUXuJVvnY1qDr+Bosba3s1W8gFLFxljQ+svoqP/i2Y+syS0cKa1I7aHR0lTLi5r 3jnfpVy3RcSpaKMSX037K/HODGE5CHqcVq95aq5Bb9h5tkrrO/a/q0h7hxRUwjq2TOIe M6YyZ0cjX81Hpmb+tqbLZucpOm8mfnCpyNPVj4vrLmFWBRjxq/dk70Qmro33sDtEzYVt ibsiIwsxMB8vNmmZvZzLayq4LvYyvyotLKg8NNJ9iR0QS+AI4uWrX0GZm8RYigpryLL+ tsPXzzDioCaGxii/L2PEcOpbVi7JeuR4WsBD/6cQWQMno62gV4+DIGzOgMArEhSIpsqH Zedg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684158116; x=1686750116; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=zvnQVFFI5JCPPlHFCnMGSLwjcYDd6p2T/820lPKV9Zs=; b=Ja++BZY7RwCZ28erQ9fqGk4Sfow/hzyBXgcFbVQB3iVypN6Ok92c0ZNCnC9LU2b7OM 8cbIHAw8JzoMU9CNiaM/N4fXdseMLHXp7ZPKAIT8ppqRkPTW+4QMUU6flhEaPzGgI173 AfXqxqu1oER8qhdyxWlr1X+4Fg7isrMY/9m1zPyOTWOK8EDYotlou+YB2mOl/xDa29RX 2FBQHT+tdxKE8cN9KtVXtTgFfz6SNJ5Z0UlTfNnrLvOZcSMMO7LlZNjrQFe9C2ZTQzdS 3yBZnYThcm6G/mzCxWkmY9weMo3U1Fh/KmxnlIBftZ2tX+kK0tpP2uM0iOsKlQsX9cXx 5EXg== X-Gm-Message-State: AC+VfDxmVs4569ncgmAnM9cTUAY3Lp7qEnxXN+xv5GbcGdjSaytsbGfi jVy48E+nCNIPj1G+nRJa34GfgnjVev0= X-Google-Smtp-Source: ACHHUZ6FIU5TDyhdA0bTZGJfzL2oCku34ftJ3rlYMVOVRaOL98SLFIdeH71LyJodF/9kSnC26a+5aw== X-Received: by 2002:a05:6a00:1390:b0:646:3162:31a2 with SMTP id t16-20020a056a00139000b00646316231a2mr35667238pfg.17.1684158116216; Mon, 15 May 2023 06:41:56 -0700 (PDT) Received: from ?IPV6:2601:681:8600:13d0::f0a? ([2601:681:8600:13d0::f0a]) by smtp.gmail.com with ESMTPSA id fe25-20020a056a002f1900b0062dfe944c61sm11677377pfb.218.2023.05.15.06.41.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 May 2023 06:41:55 -0700 (PDT) Message-ID: <65411c00-1c43-88d6-220b-5e18ed153bdf@gmail.com> Date: Mon, 15 May 2023 07:41:54 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Subject: Re: [PATCH V3] RISC-V: Add rounding mode operand for fixed-point patterns Content-Language: en-US To: juzhe.zhong@rivai.ai, gcc-patches@gcc.gnu.org Cc: kito.cheng@gmail.com, kito.cheng@sifive.com, palmer@dabbelt.com, palmer@rivosinc.com, rdapp.gcc@gmail.com References: <20230515102550.228989-1-juzhe.zhong@rivai.ai> From: Jeff Law In-Reply-To: <20230515102550.228989-1-juzhe.zhong@rivai.ai> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,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 List-Id: On 5/15/23 04:25, juzhe.zhong@rivai.ai wrote: > From: Juzhe-Zhong > > Since we are going to have fixed-point intrinsics that are modeling rounding mode > https://github.com/riscv-non-isa/rvv-intrinsic-doc/pull/222 > > We should have operand to specify rounding mode in fixed-point instructions. > We don't support these modeling rounding mode intrinsics yet but we will definetely > support them later. > > This is the preparing patch for new coming intrinsics. > > gcc/ChangeLog: > > * config/riscv/riscv-protos.h (enum vxrm_field_enum): New enum. > * config/riscv/riscv-vector-builtins.cc (function_expander::use_exact_insn): Add default rounding mode operand. > * config/riscv/riscv.cc (riscv_hard_regno_nregs): Add VXRM_REGNUM. > (riscv_hard_regno_mode_ok): Ditto. > (riscv_conditional_register_usage): Ditto. > * config/riscv/riscv.h (DWARF_FRAME_REGNUM): Ditto. > (VXRM_REG_P): Ditto. > (RISCV_DWARF_VXRM): Ditto. > * config/riscv/riscv.md: Ditto. > * config/riscv/vector.md: Ditto. OK. jeff