On Fri, 2006-07-14 at 11:48 +0200, dragoran wrote: > Arjan van de Ven wrote: > > On Fri, 2006-07-14 at 09:03 +0000, Kevin Kofler wrote: > > > >> Arjan van de Ven <arjan <at> fenrus.demon.nl> writes: > >> > >>> SSE in 32 bit is not "just used" by gcc > >>> > >> What about -ftree-vectorize? > >> > > > > that is, on 32 bit, not so cheap since it means transfering FP from the > > x87 fpu to sse and back a lot. > > > > > ok but why isn't it enabled on x86_64 (for 64bit apps) > the packages are compiled with > -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions > -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic > (this is shown in about:buildconfig in 64bit mozilla) perhaps because it's default enabled in -O2 ? (also iirc mozilla doesn't use the same CFLAGs as the rest of the distro does; but that could have gotten fixed recently of course) -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
