From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2205) id A0D443857C44; Thu, 10 Mar 2022 11:22:35 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A0D443857C44 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Tom de Vries To: gcc-cvs@gcc.gnu.org Subject: [gcc r12-7582] [nvptx] Add multilib mptx=3.1 X-Act-Checkin: gcc X-Git-Author: Tom de Vries X-Git-Refname: refs/heads/master X-Git-Oldrev: 831ecddf5bb99e15743f71b6c8257f3ceaa80ddc X-Git-Newrev: 975e7ade35095839b4dd2cc0f2b303bd63950db9 Message-Id: <20220310112235.A0D443857C44@sourceware.org> Date: Thu, 10 Mar 2022 11:22:35 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Mar 2022 11:22:35 -0000 https://gcc.gnu.org/g:975e7ade35095839b4dd2cc0f2b303bd63950db9 commit r12-7582-g975e7ade35095839b4dd2cc0f2b303bd63950db9 Author: Tom de Vries Date: Tue Mar 8 09:25:39 2022 +0100 [nvptx] Add multilib mptx=3.1 With commit 5b5e456f018 ("[nvptx] Build libraries with mptx=3.1") the intention was that the ptx isa version for all libraries was switched back to 3.1 using MULTILIB_EXTRA_OPTS, without changing the default 6.0. Further testing revealed that this is not the case, and some libs were still build with 6.0. Fix this by introducing an mptx=3.1 multilib. Adding a multilib should be avoided if possible, because it adds build time. But I think it's a reasonable trade-off. With --disable-multilib, the default lib with misa=sm_30 and mptx=6.0 should be usable in most scenarios. With --enable-multilib, we can enable older drivers, as well as generate code similar to how that was done in previous gcc releases, which is very useful. Tested on nvptx. gcc/ChangeLog: 2022-03-07 Tom de Vries * config/nvptx/t-nvptx (MULTILIB_EXTRA_OPTS): Move mptx=3.1 ... (MULTILIB_OPTIONS): ... here. Diff: --- gcc/config/nvptx/t-nvptx | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/gcc/config/nvptx/t-nvptx b/gcc/config/nvptx/t-nvptx index a4a5341bb24..b63c4a5a39d 100644 --- a/gcc/config/nvptx/t-nvptx +++ b/gcc/config/nvptx/t-nvptx @@ -30,6 +30,4 @@ s-nvptx-gen-opt: $(srcdir)/config/nvptx/nvptx-sm.def tmp-nvptx-gen.opt $(srcdir)/config/nvptx/nvptx-gen.opt $(STAMP) s-nvptx-gen-opt -MULTILIB_OPTIONS = mgomp - -MULTILIB_EXTRA_OPTS = mptx=3.1 +MULTILIB_OPTIONS = mgomp mptx=3.1