Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-14 Thread Szabolcs Nagy
The 04/30/2020 12:26, Kyrylo Tkachov wrote: > > > From: Gcc On Behalf Of Andrew Pinski via Gcc > > > On Wed, Apr 29, 2020 at 6:25 AM Florian Weimer via Gcc > > > wrote: > > > > Distributions are receiving requests to build things with > > > > -moutline-atomics: > > > > > > > >

Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-05 Thread Andrew Haley via Gcc-patches
On 5/1/20 11:48 AM, JiangNing OS via Gcc-patches wrote: > In reality, a lot of users are still using old gcc versions running on new > hardware. OpenJDK is a typical example, I think. We can change the OpenJDK build scripts to use -moutline-atomics if it's available. I agree with Richard that we

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-04 Thread Kyrylo Tkachov
Hi all, > -Original Message- > From: Florian Weimer > Sent: 04 May 2020 09:35 > To: Joseph Myers > Cc: Kyrylo Tkachov ; Andrew Pinski > ; gcc-patches@gcc.gnu.org; nmeye...@amzn.com > Subject: Re: Should ARMv8-A generic tuning default to -moutline-atomics > &g

Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-04 Thread Florian Weimer via Gcc-patches
* Joseph Myers: > I think this change is what introduced a glibc testsuite regression in the > localplt test. > > https://sourceware.org/pipermail/libc-testresults/2020q2/006097.html > > Contents of elf/check-localplt.out: > > Extra PLT reference: libc.so: getauxval > > A reference to getauxval

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread Joseph Myers
I think this change is what introduced a glibc testsuite regression in the localplt test. https://sourceware.org/pipermail/libc-testresults/2020q2/006097.html Contents of elf/check-localplt.out: Extra PLT reference: libc.so: getauxval A reference to getauxval from libgcc is also a namespace

Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread Jeff Law via Gcc-patches
> > From: JiangNing OS > > > Sent: 01 May 2020 11:49 > > > To: Richard Earnshaw ; Kyrylo Tkachov > > > ; Andrew Pinski ; Florian > > > Weimer > > > Cc: gcc-patches@gcc.gnu.org; nmeye...@amzn.com > > > Subject: RE: Should ARMv8-A generic

Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread Richard Earnshaw
Kyrylo Tkachov >> ; Andrew Pinski ; Florian >> Weimer >> Cc: gcc-patches@gcc.gnu.org; nmeye...@amzn.com >> Subject: RE: Should ARMv8-A generic tuning default to -moutline-atomics >> >> In reality, a lot of users are still using old gcc versions running on new >>

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread Kyrylo Tkachov
es@gcc.gnu.org; nmeye...@amzn.com > Subject: RE: Should ARMv8-A generic tuning default to -moutline-atomics > > In reality, a lot of users are still using old gcc versions running on new > hardware. OpenJDK is a typical example, I think. Although this option is not an ABI change an

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread JiangNing OS via Gcc-patches
> Weimer > Cc: gcc-patches@gcc.gnu.org; nmeye...@amzn.com > Subject: Re: Should ARMv8-A generic tuning default to -moutline-atomics > > On 01/05/2020 11:38, JiangNing OS via Gcc-patches wrote: > > Hi Kyrill, > > > > Can it be backported to gcc 8/9/10 branches? >

Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread Richard Earnshaw
u.org; nmeye...@amzn.com >> Subject: RE: Should ARMv8-A generic tuning default to -moutline-atomics >> >> >> >>> -Original Message- >>> From: Gcc-patches On Behalf Of >>> Kyrylo Tkachov >>> Sent: 30 April 2020 11:57 >>> To: A

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-05-01 Thread JiangNing OS via Gcc-patches
es@gcc.gnu.org; nmeye...@amzn.com > Subject: RE: Should ARMv8-A generic tuning default to -moutline-atomics > > > > > -Original Message- > > From: Gcc-patches On Behalf Of > > Kyrylo Tkachov > > Sent: 30 April 2020 11:57 > > To: Andrew Pinski ; Florian

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-04-30 Thread Kyrylo Tkachov
> -Original Message- > From: Gcc-patches On Behalf Of Kyrylo > Tkachov > Sent: 30 April 2020 11:57 > To: Andrew Pinski ; Florian Weimer > > Cc: gcc-patches@gcc.gnu.org; nmeye...@amzn.com > Subject: RE: Should ARMv8-A generic tuning default to -moutline-ato

Re: Should ARMv8-A generic tuning default to -moutline-atomics

2020-04-30 Thread Richard Earnshaw
On 30/04/2020 11:56, Kyrylo Tkachov wrote: > [Moving to gcc-patches] > >> -Original Message- >> From: Gcc On Behalf Of Andrew Pinski via Gcc >> Sent: 30 April 2020 07:21 >> To: Florian Weimer >> Cc: GCC Mailing List ; nmeye...@amzn.com >>

RE: Should ARMv8-A generic tuning default to -moutline-atomics

2020-04-30 Thread Kyrylo Tkachov
[Moving to gcc-patches] > -Original Message- > From: Gcc On Behalf Of Andrew Pinski via Gcc > Sent: 30 April 2020 07:21 > To: Florian Weimer > Cc: GCC Mailing List ; nmeye...@amzn.com > Subject: Re: Should ARMv8-A generic tuning default to -moutline-atomics > &