[Bug tree-optimization/31090] Revision 121302 causes 30% performance regression

[hjl at lucon dot org]

------- Comment #12 from hjl at lucon dot org  2007-03-10 00:04 -------
--param max-aliased-vops=100 works:

[hjl@gnu-25 597]$ make
/usr/gcc-next/bin/gfortran -c -O2 --param max-aliased-vops=100 -o 301.o
test597.f90
/usr/gcc-4.3/bin/gfortran -o 301 301.o -Wl,-rpath,/usr/gcc-4.3/lib64
/usr/gcc-last/bin/gfortran -c -O2 --param max-aliased-vops=100 -o 302.o
test597.f90
/usr/gcc-4.3/bin/gfortran -o 302 302.o -Wl,-rpath,/usr/gcc-4.3/lib64
/usr/gcc-last/bin/gfortran -c -O2 --param max-aliased-vops=100 -o 43.o
test597.f90
/usr/gcc-4.3/bin/gfortran -o 43 43.o -Wl,-rpath,/usr/gcc-4.3/lib64
time ./301
0.86user 0.00system 0:00.87elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2326minor)pagefaults 0swaps
time ./302
0.86user 0.00system 0:00.87elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2326minor)pagefaults 0swaps
time ./43
0.86user 0.00system 0:00.87elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2327minor)pagefaults 0swaps
[hjl@gnu-25 597]$ 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31090