------- Comment #12 from dominiq at lps dot ens dot fr 2007-12-10 16:03 ------- > committed, cost model now enabled for i386.
Is it working for Intel Core2Duo? At revision 130743 and Using built-in specs. Target: i686-apple-darwin9 Configured with: ../gcc-4.3-work/configure --prefix=/opt/gcc/gcc4.3w --mandir=/opt/gcc/gcc4.3w/share/man --infodir=/opt/gcc/gcc4.3w/share/info --build=i686-apple-darwin9 --enable-languages=c,c++,fortran,objc,obj-c++,java --with-gmp=/sw --with-libiconv-prefix=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib Thread model: posix gcc version 4.3.0 20071210 (experimental) (GCC) for 'gfc -O3 -ffast-math -funroll-loops induct.f90' (with/without -fvect-cost-model), the execution time is: 93.986u 0.051s 1:34.04 99.9% 0+0k 0+0io 0pf+0w while for 'gfc -O3 -ffast-math -funroll-loops --param min-vect-loop-bound=2 induct.f90', it is: 76.345u 0.048s 1:16.39 99.9% 0+0k 0+0io 0pf+0w If yes, the cost model should be tuned for Core2Duo. If no, did I do something wrong with the configure? Should I open a new PR for these questions? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32086
