[Bug middle-end/45422] [4.6 Regression] compile time increases 3x.

[Joost.VandeVondele at pci dot uzh.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45422

--- Comment #33 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 2011-01-25 09:47:10 UTC ---
I just note that the timings reported by David and Jakub are not for the
compile options I originally reported.

With 4.6 (20110117) I now have 

gfortran -c -ftime-report -cpp -fbounds-check -g -O3 -ffast-math -funroll-loops
-ftree-vectorize -march=native -ffree-form PR45422.F90
TOTAL                 : 102.15 

while with the options used by David / Jakub I have timings similar to theirs.

gfortran -O3 -fbounds-check -ftime-report -c PR45422.F90
 TOTAL                 :  42.87

With 4.5 timings remain ~44s