On Mon, May 30, 2016 at 11:02 AM, ⚛ <0xe2.0x9a.0...@gmail.com> wrote: > > On Mon, May 30, 2016 at 7:39 PM, Matt Turner <matts...@gmail.com> wrote: >> >> On Mon, May 30, 2016 at 10:28 AM, <0xe2.0x9a.0...@gmail.com> wrote: >> > This patch enables compilation with -flto. >> > >> > The performance benefits of LTO (GCC 4.9 & 6.1) are about 1% for glxgears. >> > Performance changes in OpenGL games haven't been measured yet, my feeling >> > is >> > that they are negligible. >> >> Without a compelling reason, I don't think the build system should be >> adding compiler flags like this. > > > What does it mean "like this". The patched build system only checks whether > -flto works because it needs to be disabled in mesa/src/mapi. > >> >> -flto makes debugging impossible, at least the last time I tried it >> with gcc. I don't think that's something we would want enabled >> whenever it's supported. > > > "Enable LTO compilation" means the person compiling Mesa can choose whether > to use -flto.
Oh, I see. I misunderstood the patch initially. Because src/mapi cannot be compiled with -flto, this patch *disables* -flto in that directory if it is enabled. Interesting. (Please keep mesa-dev@ in Cc on your replies, and don't sent HTML mail) _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
