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([2001:16b8:3fec:9600:be03:58ff:fe31:f74]) by smtp.gmail.com with ESMTPSA id v18-20020a170906381200b00a2699a54888sm11219261ejc.64.2024.01.20.01.57.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 20 Jan 2024 01:57:31 -0800 (PST) Message-ID: <94930db9-831d-432c-9d3a-337dba678f09@baylibre.com> Date: Sat, 20 Jan 2024 10:57:29 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: gcc-patches , Thomas Schwinge , Tom de Vries From: Tobias Burnus Subject: [patch] nvptx.opt: Add sm_89 and sm_90a to -march-map= X-Spam-Status: No, score=-13.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, 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 X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788602948965931146 X-GMAIL-MSGID: 1788602948965931146 Stumbled over this as we recently got a sm_89 card. -march-map= is mostly a future proof method for user to ensure to use always the best code gen for a specific card - without needing to know which GCC version added support for what --march=sm_... (or -misa=sm_... - those are aliases). sm_89 was added in CUDA 11.8 (ptx isa 7.8) and sm_90a in CUDA 12.0 (ptx isa 8.0) but that's just FYI as -march-map=sm_xx, xx >= 80 is mapping to -march=sm_80 and implies -mptx=7.0 (i.e. ptx isa 7.0, added in CUDA 11.0); hence, any CUDA 11.0+ will do. OK for mainline? Tobias nvptx.opt: Add sm_89 and sm_90a to -march-map= The -march-map= options maps the compute capability to the closest lower compute capability that has been implemented; for sm_89 and sm_90a, that were previously missing, that's currently -march=sm_80 alias -misa=sm_80. gcc/ChangeLog: * config/nvptx/nvptx.opt (march-map=): Add sm_89 and sm_90a. Signed-off-by: Tobias Burnus diff --git a/gcc/config/nvptx/nvptx.opt b/gcc/config/nvptx/nvptx.opt index 09d75fca037..deb006663d7 100644 --- a/gcc/config/nvptx/nvptx.opt +++ b/gcc/config/nvptx/nvptx.opt @@ -108,9 +108,15 @@ Target RejectNegative Alias(misa=,sm_80) march-map=sm_87 Target RejectNegative Alias(misa=,sm_80) +march-map=sm_89 +Target RejectNegative Alias(misa=,sm_80) + march-map=sm_90 Target RejectNegative Alias(misa=,sm_80) +march-map=sm_90a +Target RejectNegative Alias(misa=,sm_80) + Enum Name(ptx_version) Type(int) Known PTX ISA versions (for use with the -mptx= option):