{"id":2220972,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2220972/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/c54fb9ba-b8eb-4552-a97c-3549875a63cc@baylibre.com/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/1.1/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<c54fb9ba-b8eb-4552-a97c-3549875a63cc@baylibre.com>","date":"2026-04-08T14:12:41","name":"[wwwdocs] gcc-16/changes.html - GCN: offload launch overhead reduced","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"24bba384fb3d9f7766492c8186f9514603407704","submitter":{"id":87873,"url":"http://patchwork.ozlabs.org/api/1.1/people/87873/?format=json","name":"Tobias Burnus","email":"tburnus@baylibre.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/c54fb9ba-b8eb-4552-a97c-3549875a63cc@baylibre.com/mbox/","series":[{"id":499147,"url":"http://patchwork.ozlabs.org/api/1.1/series/499147/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=499147","date":"2026-04-08T14:12:41","name":"[wwwdocs] gcc-16/changes.html - GCN: offload launch overhead reduced","version":1,"mbox":"http://patchwork.ozlabs.org/series/499147/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2220972/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2220972/checks/","tags":{},"headers":{"Return-Path":"<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=baylibre-com.20251104.gappssmtp.com\n header.i=@baylibre-com.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=CbHtRC9L;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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boundary=\"------------ffmtxrJWX9vNoivRRazgYddD\"","Message-ID":"<c54fb9ba-b8eb-4552-a97c-3549875a63cc@baylibre.com>","Date":"Wed, 8 Apr 2026 16:12:41 +0200","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Content-Language":"en-US","To":"gcc-patches <gcc-patches@gcc.gnu.org>, Andrew Stubbs <ams@baylibre.com>,\n\t=?utf-8?q?Arsen_Arsenovi=C4=87?= <aarsenovic@baylibre.com>","From":"Tobias Burnus <tburnus@baylibre.com>","Subject":"[wwwdocs] gcc-16/changes.html - GCN: offload launch overhead reduced","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list <gcc-patches.gcc.gnu.org>","List-Unsubscribe":"<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>","List-Archive":"<https://gcc.gnu.org/pipermail/gcc-patches/>","List-Post":"<mailto:gcc-patches@gcc.gnu.org>","List-Help":"<mailto:gcc-patches-request@gcc.gnu.org?subject=help>","List-Subscribe":"<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"I am not quite sure where to put it - generic, OpenMP/OpenACC language,\nbut settled for AMD GPU.\nI am also not sure how to word it best, one wording variant is attached.\n\nComments - better suggestions?\nOK?\n\nTobias","diff":"gcc-16/changes.html - GCN: offload launch overhead reduced\n\ndiff --git a/htdocs/gcc-16/changes.html b/htdocs/gcc-16/changes.html\nindex a921e805..500ab53a 100644\n--- a/htdocs/gcc-16/changes.html\n+++ b/htdocs/gcc-16/changes.html\n@@ -436,6 +436,8 @@ struct Affected : E\n   <li>Experimental support for AMD Instinct MI300 (<code>gfx942</code>) devices\n       has been added, including the generic <code>gfx9-4-generic</code> and\n       mostly compatible <code>gfx950</code>.</li>\n+  <li>For offloading to AMD GPUs: The launch overhead of OpenMP target regions\n+      and OpenACC compute regions has been drastically reduced.</li>\n   <li>By default, the following multilibs are now built: <code>gfx908</code>,\n       <code>gfx90a</code>, <code>gfx9-generic</code>,\n       <code>gfx9-4-generic</code>, <code>gfx10-3-generic</code>, and\n","prefixes":["wwwdocs"]}