[{"id":3673402,"web_url":"http://patchwork.ozlabs.org/comment/3673402/","msgid":"","list_archive_url":null,"date":"2026-04-04T08:15:02","subject":"Re: [PATCH 1/2] xtensa: Small change to the alternative negsf2\n pattern","submitter":{"id":2793,"url":"http://patchwork.ozlabs.org/api/people/2793/","name":"Max Filippov","email":"jcmvbkbc@gmail.com"},"content":"On Thu, Apr 2, 2026 at 7:02 PM Takayuki 'January June' Suwa\n wrote:\n>\n> The previously added alternative negsf2 pattern (for cases where both\n> source and destination are GP registers) directly specified multiple\n> machine instructions in the output template, but this patch replaces\n> that with an RTL representation using the split pattern, to increase\n> opportunities for instruction reordering.\n>\n> gcc/ChangeLog:\n>\n> * config/xtensa/xtensa.md (negsf2):\n> Change define_insn to define_insn_and_split, and replace the\n> corresponding output template with the split pattern.\n> ---\n> gcc/config/xtensa/xtensa.md | 14 ++++++++++++--\n> 1 file changed, 12 insertions(+), 2 deletions(-)\n\nRegtested for target=xtensa-linux-uclibc, no new regressions.\nCommitted the whole series to master.","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 (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=FHaJ7cmv;\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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