[{"id":3684587,"web_url":"http://patchwork.ozlabs.org/comment/3684587/","msgid":"","list_archive_url":null,"date":"2026-04-30T10:15:51","subject":"RE: wwwdocs: document some vectorizer GCC 16 changes","submitter":{"id":69689,"url":"http://patchwork.ozlabs.org/api/people/69689/","name":"Tamar Christina","email":"Tamar.Christina@arm.com"},"content":"Oops, I didn't see yours Richi.\n\nI'll just add what's not in yours :)\n\nCheers,\nTamar\n\n> -----Original Message-----\n> From: Tamar Christina \n> Sent: 30 April 2026 11:13\n> To: gcc-patches@gcc.gnu.org\n> Cc: nd ; rdapp.gcc@gmail.com; rguenther@suse.de\n> Subject: wwwdocs: document some vectorizer GCC 16 changes\n> \n> vect: document vectorizer GCC 16 changes\n> \n> ---\n> diff --git a/htdocs/gcc-16/changes.html b/htdocs/gcc-16/changes.html\n> index\n> 41cf540d490d04a2ddf2a640234a8a377ffd429c..d0e4b01efc387426cbd4ce\n> 422b2c80dd4f0d7d93 100644\n> --- a/htdocs/gcc-16/changes.html\n> +++ b/htdocs/gcc-16/changes.html\n> @@ -45,6 +45,18 @@ You may also want to check out our\n> \n>

General Improvements

\n> \n> +
    \n> +
  • The vectorizer now supports vectorizing uncounted loops or loops for\n> + which the number of iterations could not be determined.\n> +
    • \n> +
  • The vectorizer now supports peeling for alignment for vector length\n> + agnostic loops using masking.\n> +
    • \n> +
  • The vectorizer now supports mutual peeling for alignment.
    • \n> +
  • The vectorizer now generates more efficient code for loops with early\n> + breaks by eliminating the vector induction values.
    • \n> +
\n> +\n>

Documentation

\n>
    \n>
  • The documentation for\n> \n> \n> --","headers":{"Return-Path":"","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 (1024-bit key;\n unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256\n header.s=selector1 header.b=BPp9cS67;\n\tdkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com\n header.a=rsa-sha256 header.s=selector1 header.b=BPp9cS67;\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; helo=vm01.sourceware.org;\n envelope-from=gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org;\n receiver=patchwork.ozlabs.org)","sourceware.org;\n\tdkim=pass (1024-bit key,\n unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256\n header.s=selector1 header.b=BPp9cS67;\n\tdkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com\n header.a=rsa-sha256 header.s=selector1 header.b=BPp9cS67","sourceware.org;\n dmarc=pass (p=none dis=none) header.from=arm.com","sourceware.org; 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Ip=[4.158.2.129];\n Helo=[outbound-uk1.az.dlp.m.darktrace.com]","X-MS-Exchange-CrossTenant-AuthSource":"\n AMS0EPF000001A0.eurprd05.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Anonymous","X-MS-Exchange-CrossTenant-FromEntityHeader":"HybridOnPrem","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3684588,"web_url":"http://patchwork.ozlabs.org/comment/3684588/","msgid":"<28qp4q4s-o47n-46rr-61s2-o3nsno5pnq33@fhfr.qr>","list_archive_url":null,"date":"2026-04-30T10:17:15","subject":"Re: wwwdocs: document some vectorizer GCC 16 changes","submitter":{"id":4338,"url":"http://patchwork.ozlabs.org/api/people/4338/","name":"Richard Biener","email":"rguenther@suse.de"},"content":"On Thu, 30 Apr 2026, Tamar Christina wrote:\n\n> vect: document vectorizer GCC 16 changes\n\nPlease re-base, I have added some of these, you expanded list is better\nthan what I added, so feel free to replace.\n\n> ---\n> diff --git a/htdocs/gcc-16/changes.html b/htdocs/gcc-16/changes.html\n> index 41cf540d490d04a2ddf2a640234a8a377ffd429c..d0e4b01efc387426cbd4ce422b2c80dd4f0d7d93 100644\n> --- a/htdocs/gcc-16/changes.html\n> +++ b/htdocs/gcc-16/changes.html\n> @@ -45,6 +45,18 @@ You may also want to check out our\n> \n>

    General Improvements

    \n> \n> +
      \n> +
    • The vectorizer now supports vectorizing uncounted loops or loops for\n> + which the number of iterations could not be determined.\n> +
      • \n> +
    • The vectorizer now supports peeling for alignment for vector length\n> + agnostic loops using masking.\n> +
      • \n> +
    • The vectorizer now supports mutual peeling for alignment.
      • \n> +
    • The vectorizer now generates more efficient code for loops with early\n> + breaks by eliminating the vector induction values.
      • \n> +
    \n> +\n>

    Documentation

    \n>
      \n>
    • The documentation for\n> \n> \n>","headers":{"Return-Path":"","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 (1024-bit key;\n unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256\n header.s=susede2_rsa header.b=W+4tPT5O;\n\tdkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=j25areVv;\n\tdkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de\n header.a=rsa-sha256 header.s=susede2_rsa header.b=AE/E1Vzg;\n\tdkim=neutral header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=mxQozpDo;\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; helo=vm01.sourceware.org;\n envelope-from=gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org;\n receiver=patchwork.ozlabs.org)","sourceware.org;\n\tdkim=pass (1024-bit key,\n unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256\n header.s=susede2_rsa header.b=W+4tPT5O;\n\tdkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=j25areVv;\n\tdkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de\n header.a=rsa-sha256 header.s=susede2_rsa header.b=AE/E1Vzg;\n\tdkim=neutral header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=mxQozpDo","sourceware.org;\n dmarc=pass (p=none dis=none) header.from=suse.de","sourceware.org; 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