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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/102264] [9/10/11/12 Regression] extra spilling when using inline-asm and all registers Date: Thu, 20 Jan 2022 10:14:48 +0000 [thread overview] Message-ID: <bug-102264-4-SplwswrhUz@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-102264-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102264 --- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 52239 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52239&action=edit testcase with the constraints fixed I don't see how 4.9.4 "works", even that spills some regs. It does seem to spill a little less but not sure if AVX512 support which was new in GCC 4.9 is up to speed there. I've attached the testcase with fixed asm constraints, GCC 11 produces 18 spills of zmm and 12 reloads.
next prev parent reply other threads:[~2022-01-20 10:14 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-09 20:43 [Bug inline-asm/102264] New: Macro Intrinsics fail to use all the registers on the machine ntukanov at cmu dot edu 2021-09-09 21:12 ` [Bug inline-asm/102264] " pinskia at gcc dot gnu.org 2021-09-10 3:27 ` ntukanov at cmu dot edu 2021-09-10 7:49 ` [Bug target/102264] " rguenth at gcc dot gnu.org 2021-09-10 8:24 ` pinskia at gcc dot gnu.org 2021-09-10 8:42 ` [Bug target/102264] [9/10/11/12 Regression] extra spilling when using inline-asm and all registers pinskia at gcc dot gnu.org 2021-09-19 23:17 ` pinskia at gcc dot gnu.org 2022-01-20 10:14 ` rguenth at gcc dot gnu.org [this message] 2022-03-23 8:42 ` rguenth at gcc dot gnu.org 2022-05-27 9:46 ` [Bug target/102264] [10/11/12/13 " rguenth at gcc dot gnu.org 2022-06-28 10:46 ` jakub at gcc dot gnu.org 2023-07-07 10:40 ` [Bug target/102264] [11/12/13/14 " rguenth at gcc dot gnu.org 2024-03-10 3:20 ` law at gcc dot gnu.org 2024-03-22 14:08 ` law at gcc dot gnu.org
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