------- Comment #15 from tehila at il dot ibm dot com 2008-11-27 12:57 ------- (In reply to comment #14) > (In reply to comment #13) > > (In reply to comment #12) > > Thanks, Andrey. > > I think there are 2 "issues" here: > > 1. register-renaming. (more related to this PR, I think) > > 2. schuedule-insns. > > Both of them slows compilation. > > With ARG4, on SPU, I see: > > -O1: 9m28.355s > > -O1 -fno-rename-registers: 0m19.196s > > -O2: 184m37.492s (not >1000 as I wrote, but >100) > > -O2 -fno-rename-registers: 31m29.482s > > -O2 -fno-schedule-insns: 10m26.851s > > -O2 -fno-rename-registers -fno-schedule-insns: 0m39.425s > Do you see this on ppc to spu cross? How was your compiler configured?
Yes (ppc(ppu) to spu cross). Configuration: --target=spu --disable-shared --disable-threads --disable-checking --with-headers --with-newlib --with-system-zlib --enable-languages=c --disable-nls --enable-version-specific-runtime-libs --disable-libssp --program-prefix=spu -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31850
