This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

[PATCH/AARCH64] Fix -mcpu/arch=native support for LSE

From: Andrew Pinski <pinskia at gmail dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Fri, 11 Dec 2015 11:54:45 -0800
Subject: [PATCH/AARCH64] Fix -mcpu/arch=native support for LSE
Authentication-results: sourceware.org; auth=none

Hi,
  The Linux kernel calls lse as atomics in /proc/cpuinfo.  We should
change aarch64-option-extensions.def to take that into account.

OK?  Bootstrapped and tested on aarch64-linux-gnu with no regressions
and tested with -mcpu=native on ThunderX T88 pass 2 with Linux 4.4 to
see if lse gets enabled.

Thanks,
Andrew Pinski

ChangeLog:
 * config/aarch64/aarch64-option-extensions.def (LSE): Change
FEAT_STRING to "atomics".

Attachment: fixlse.diff.txt
Description: Text document

Follow-Ups:
- Re: [PATCH/AARCH64] Fix -mcpu/arch=native support for LSE
  - From: Andrew Pinski
- Re: [PATCH/AARCH64] Fix -mcpu/arch=native support for LSE
  - From: Richard Earnshaw (lists)

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]