Re: [gentoo-user] Re: GCC 4.7 and LTO: it works

2012-06-05 Thread Stefan G. Weichinger
Am 2012-06-05 18:56, schrieb Stefan G. Weichinger: > Am 05.06.2012 17:54, schrieb Nikos Chantziaras: > >> Kernel builds and runs fine with 4.7. But I didn't try to use LTO on >> it. I actually never try to force any custom CFLAGS on the kernel >> build. I trust upstream to pick safe and fast on

Re: [gentoo-user] Re: GCC 4.7 and LTO: it works

2012-06-05 Thread Stefan G. Weichinger
Am 05.06.2012 17:54, schrieb Nikos Chantziaras: > Kernel builds and runs fine with 4.7. But I didn't try to use LTO on > it. I actually never try to force any custom CFLAGS on the kernel > build. I trust upstream to pick safe and fast ones. Good choice. Yes, I also run gentoo-sources-3.4.0 (w

[gentoo-user] Re: GCC 4.7 and LTO: it works

2012-06-05 Thread Nikos Chantziaras
On 05/06/12 17:28, Stefan G. Weichinger wrote: Am 04.06.2012 22:19, schrieb Nikos Chantziaras: I've emerged system and world with gcc-4.7.0 and LTO. I'm posting from it right now :-) It's a KDE system with 1043 packages installed. I've posted details on how to do this (including info on how to

[gentoo-user] Re: GCC 4.7 and LTO: it works

2012-06-04 Thread Nikos Chantziaras
On 05/06/12 01:37, Paul Hartman wrote: On Mon, Jun 4, 2012 at 4:39 PM, Nikos Chantziaras wrote: Did you use gold or the standard linker? The standard one. I didn't actually think about the importance of this. Does gold work better with LTO? I don't know much about it, but AFAIK gold i

Re: [gentoo-user] Re: GCC 4.7 and LTO: it works

2012-06-04 Thread Paul Hartman
On Mon, Jun 4, 2012 at 4:39 PM, Nikos Chantziaras wrote: > >> Did you use gold or the standard linker? > > > The standard one.  I didn't actually think about the importance of this. >  Does gold work better with LTO? I don't know much about it, but AFAIK gold is supposed to be several times faste

[gentoo-user] Re: GCC 4.7 and LTO: it works

2012-06-04 Thread Nikos Chantziaras
On 05/06/12 00:21, Paul Hartman wrote: On Mon, Jun 4, 2012 at 3:19 PM, Nikos Chantziaras wrote: I've emerged system and world with gcc-4.7.0 and LTO. I'm posting from it right now :-) It's a KDE system with 1043 packages installed. I've posted details on how to do this (including info on how