[Bug tree-optimization/46590] [4.6 Regression] long compile time with -O2 and many loops

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46590

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.4.1
            Summary|long compile time with -O2  |[4.6 Regression] long
                   |and many loops              |compile time with -O2 and
                   |                            |many loops
      Known to fail|                            |4.6.0

--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2010-11-21 
21:13:24 UTC ---
4.4 compile time is much lower:

i...@linux-fd1f:~/Krempel/Dep-c> time /usr/bin/gfortran-4.4 -O2 gener-4.f90

real    0m59.893s
user    0m58.172s
sys     0m0.664s