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[2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id br15-20020a170906d14f00b00991c46d0bb6si11706485ejb.93.2023.08.02.17.05.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Aug 2023 17:05:44 -0700 (PDT) Received-SPF: pass (google.com: domain of binutils-bounces+ouuuleilei=gmail.com@sourceware.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org header.s=default header.b=Wn+0NlON; spf=pass (google.com: domain of binutils-bounces+ouuuleilei=gmail.com@sourceware.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="binutils-bounces+ouuuleilei=gmail.com@sourceware.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id BE5CA38582BE for ; Thu, 3 Aug 2023 00:05:18 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BE5CA38582BE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1691021118; bh=YGzzUABJPCNpktLpdohH7r2IJ0zZ+QNoxX379eWNAdM=; h=To:Cc:Subject:Date:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From:Reply-To:From; b=Wn+0NlONQFB9xmIdETyu2hMWbeFzZXmMqAuw7Y2p5RhgbrhUEsbeu7+a25MrSfkup mEuBFXUMkKi/4zDa3AfFLHtJcTzErT+Efv1myNbrHSrb6lu5sPPuDECngTih77yR0j OUTHEgRSTMFMhXDegr9yTmPpuzOL9bSi9gsHvtnI= X-Original-To: binutils@sourceware.org Delivered-To: binutils@sourceware.org Received: from mail-sender-0.a4lg.com (mail-sender-0.a4lg.com [IPv6:2401:2500:203:30b:4000:6bfe:4757:0]) by sourceware.org (Postfix) with ESMTPS id CA5453857038 for ; Thu, 3 Aug 2023 00:05:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org CA5453857038 Received: from [127.0.0.1] (localhost [127.0.0.1]) by mail-sender-0.a4lg.com (Postfix) with ESMTPSA id B44B1300089; Thu, 3 Aug 2023 00:04:59 +0000 (UTC) To: Tsukasa OI , Palmer Dabbelt , Andrew Waterman , Jim Wilson , Nelson Chu , Kito Cheng Cc: binutils@sourceware.org Subject: [REVIEW ONLY 0/4] UNRATIFIED RISC-V: Add support for BFloat16 extensions Date: Thu, 3 Aug 2023 00:04:52 +0000 Message-ID: Mime-Version: 1.0 X-Spam-Status: No, score=-6.0 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, KAM_MANYTO, 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 X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Tsukasa OI via Binutils From: Tsukasa OI Reply-To: Tsukasa OI Errors-To: binutils-bounces+ouuuleilei=gmail.com@sourceware.org Sender: "Binutils" X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773164187764978012 X-GMAIL-MSGID: 1773164187764978012 Hello, This patch set implements three extensions in the RISC-V BF16 Extensions specification: Each patch implements following extensions one by one (PATCH 1-3/4). 1. 'Zfbfmin' (scalar BF16 conversion extension) 2. 'Zvfbfmin' (vector BF16 narrowing/widening conversion-only extension) 3. 'Zvfbfwma' (vector BF16 widening multiply-accumlate extension) The extension versions are set to "0.8" as in the documentation (not final "1.0"). Although it's small, it covers some of important machine learning workloads (especially 'Zvfbfwma' extension). I hope this patch set helps testing this draft extension on the simulator. PATCH 4/4 is a tentative support of an assembler directive: ".bfloat16". Although not included in the RISC-V Assembly Programmer's Manual, the final assembler directive will be likely ".bfloat16" (like x86 and AArch64). Test cases are ported from AArch64. Thanks, Tsukasa Tsukasa OI (4): UNRATIFIED RISC-V: Add 'Zfbfmin' extension UNRATIFIED RISC-V: Add 'Zvfbfmin' extension UNRATIFIED RISC-V: Add 'Zvfbfwma' extension RISC-V: Tentative ".bfloat16" assembly support bfd/elfxx-riscv.c | 24 ++++++++++++++++++++++-- gas/config/tc-riscv.c | 3 ++- gas/testsuite/gas/riscv/bfloat16-be.d | 10 ++++++++++ gas/testsuite/gas/riscv/bfloat16-le.d | 10 ++++++++++ gas/testsuite/gas/riscv/bfloat16.s | 19 +++++++++++++++++++ gas/testsuite/gas/riscv/zfbfmin.d | 15 +++++++++++++++ gas/testsuite/gas/riscv/zfbfmin.s | 10 ++++++++++ gas/testsuite/gas/riscv/zvfbfmin.d | 12 ++++++++++++ gas/testsuite/gas/riscv/zvfbfmin.s | 5 +++++ gas/testsuite/gas/riscv/zvfbfwma.d | 12 ++++++++++++ gas/testsuite/gas/riscv/zvfbfwma.s | 5 +++++ include/opcode/riscv-opc.h | 24 ++++++++++++++++++++++++ include/opcode/riscv.h | 3 +++ opcodes/riscv-opc.c | 13 +++++++++++++ 14 files changed, 162 insertions(+), 3 deletions(-) create mode 100644 gas/testsuite/gas/riscv/bfloat16-be.d create mode 100644 gas/testsuite/gas/riscv/bfloat16-le.d create mode 100644 gas/testsuite/gas/riscv/bfloat16.s create mode 100644 gas/testsuite/gas/riscv/zfbfmin.d create mode 100644 gas/testsuite/gas/riscv/zfbfmin.s create mode 100644 gas/testsuite/gas/riscv/zvfbfmin.d create mode 100644 gas/testsuite/gas/riscv/zvfbfmin.s create mode 100644 gas/testsuite/gas/riscv/zvfbfwma.d create mode 100644 gas/testsuite/gas/riscv/zvfbfwma.s base-commit: 4b177a76d5b759ba631568fb69e8750e99b43647