Re: Future debug options: -f* or -g*?

2020-08-31 Thread David Blaikie via Gcc
Hey Mark - saw a little of/bits about your presentation at LPC 2020 GNU Tools Track (& your thread on on the gdb list about debug_names). Wondering if you (or anyone else you know who's contributing to debug info in GCC) have some thoughts on this flag naming issue. It'd be great to get some alignm

Re: Built-in Specs ignored... unless -specs=dump is specified

2020-08-31 Thread Andrew Pinski via Gcc
On Mon, Aug 31, 2020 at 4:34 PM Giacomo Tesio wrote: > > Hello everybody! > > To cleanup my port of GCC (9.2.0) to Jehanne OS (http://jehanne.io) > I'd like to add a `--posixly` command line options to the gcc driver > that should be expanded to a couple of -isystem and -L options > to ease the co

Built-in Specs ignored... unless -specs=dump is specified

2020-08-31 Thread Giacomo Tesio
Hello everybody! To cleanup my port of GCC (9.2.0) to Jehanne OS (http://jehanne.io) I'd like to add a `--posixly` command line options to the gcc driver that should be expanded to a couple of -isystem and -L options to ease the compilation of POSIX programs (Jehanne is a Plan 9 derivative so it's

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Richard Biener via Gcc
On August 31, 2020 6:21:27 PM GMT+02:00, Giuliano Belinassi wrote: >Hi, Richi. > >On 08/31, Richard Biener wrote: >> On Mon, Aug 31, 2020 at 1:15 PM Jan Hubicka wrote: >> > >> > > On Fri, Aug 28, 2020 at 10:32 PM Giuliano Belinassi >> > > wrote: >> > > > >> > > > Hi, >> > > > >> > > > This is t

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Jan Hubicka
> > I guess before investigating the current state in detail > > it might be worth exploring Honzas wish of sharing > > the actual partitioning code between LTO and -fparallel-jobs. > > > > Note that larger objects take a bigger hit from the GC COW > > issue so at some point that becomes dominant

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Giuliano Belinassi via Gcc
Hi, Richi. On 08/31, Richard Biener wrote: > On Mon, Aug 31, 2020 at 1:15 PM Jan Hubicka wrote: > > > > > On Fri, Aug 28, 2020 at 10:32 PM Giuliano Belinassi > > > wrote: > > > > > > > > Hi, > > > > > > > > This is the final report of the "Automatic Parallel Compilation > > > > Viability" projec

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Giuliano Belinassi via Gcc
Hi, Richi. On 08/31, Richard Biener wrote: > On Fri, Aug 28, 2020 at 10:32 PM Giuliano Belinassi > wrote: > > > > Hi, > > > > This is the final report of the "Automatic Parallel Compilation > > Viability" project. Please notice that this report is pretty > > similar to the delivered from the 2nd

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Richard Biener via Gcc
On Mon, Aug 31, 2020 at 1:15 PM Jan Hubicka wrote: > > > On Fri, Aug 28, 2020 at 10:32 PM Giuliano Belinassi > > wrote: > > > > > > Hi, > > > > > > This is the final report of the "Automatic Parallel Compilation > > > Viability" project. Please notice that this report is pretty > > > similar to

Re: LTO slows down calculix by more than 10% on aarch64

2020-08-31 Thread Jan Hubicka
> Thanks for the suggestions. > Is it possible to modify assembly files emitted after ltrans phase ? > IIUC, the linker invokes lto1 twice, for wpa and ltrans,and then links > the obtained object files which doesn't make it possible to hand edit > assembly files post ltrans ? > In particular, I wan

Re: LTO slows down calculix by more than 10% on aarch64

2020-08-31 Thread Prathamesh Kulkarni via Gcc
On Fri, 28 Aug 2020 at 17:33, Alexander Monakov wrote: > > On Fri, 28 Aug 2020, Prathamesh Kulkarni via Gcc wrote: > > > I wonder if that's (one of) the main factor(s) behind slowdown or it's > > not too relevant ? > > Probably not. Some advice to make your search more directed: > > Pass '-n' to '

Re: LTO slows down calculix by more than 10% on aarch64

2020-08-31 Thread Prathamesh Kulkarni via Gcc
On Fri, 28 Aug 2020 at 17:27, Richard Biener wrote: > > On Fri, Aug 28, 2020 at 1:17 PM Prathamesh Kulkarni > wrote: > > > > On Wed, 26 Aug 2020 at 16:50, Richard Biener > > wrote: > > > > > > On Wed, Aug 26, 2020 at 12:34 PM Prathamesh Kulkarni via Gcc > > > wrote: > > > > > > > > Hi, > > > >

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Jan Hubicka
> On Fri, Aug 28, 2020 at 10:32 PM Giuliano Belinassi > wrote: > > > > Hi, > > > > This is the final report of the "Automatic Parallel Compilation > > Viability" project. Please notice that this report is pretty > > similar to the delivered from the 2nd evaluation, as this phase > > consisted of

Re: [GSoC] Automatic Parallel Compilation Viability -- Final Report

2020-08-31 Thread Richard Biener via Gcc
On Fri, Aug 28, 2020 at 10:32 PM Giuliano Belinassi wrote: > > Hi, > > This is the final report of the "Automatic Parallel Compilation > Viability" project. Please notice that this report is pretty > similar to the delivered from the 2nd evaluation, as this phase > consisted of mostly rebasing an