------- Comment #62 from lucier at math dot purdue dot edu 2008-05-15 02:48 ------- I thought I might test the ira branch with
euler-3% /pkgs/gcc-ira/bin/gcc -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../../ira/configure --enable-checking=release --with-gmp=/pkgs/gmp-4.2.2/ --with-mpfr=/pkgs/gmp-4.2.2/ --prefix=/pkgs/gcc-ira --enable-languages=c --enable-gather-detailed-mem-stats Thread model: posix gcc version 4.4.0 20080328 (experimental) [ira revision 135280] (GCC) The command line was /pkgs/gcc-ira/bin/gcc -fno-ira -Wall -W -Wno-unused -O1 -fno-math-errno -fschedule-insns2 -fno-trapping-math -fno-strict-aliasing -fwrapv -fomit-frame-pointer -fPIC -ftime-report -fmem-report -c all.i with -fira and with -fno-ira. The ira branch takes a lot longer to compile this code with -fira than without it; the relevant lines seem to be: for -fira: integrated RA : 373.36 (66%) usr 0.33 ( 2%) sys 375.87 (64%) wall 12064 kB ( 2%) ggc TOTAL : 563.85 15.94 582.98 763565 kB for -fno-ira: local alloc : 8.42 ( 4%) usr 0.03 ( 0%) sys 8.43 ( 4%) wall 7073 kB ( 1%) ggc global alloc : 20.91 (11%) usr 0.30 ( 2%) sys 21.23 (10%) wall 4961 kB ( 1%) ggc TOTAL : 196.25 17.55 213.84 766052 kB I'll add the complete reports as the next two attachments. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854
