[Bug middle-end/39210] New: g++ 4.3 takes hours to compile greycstoration

[kurt at garloff dot de]

http://cimg.sourceforge.net/greycstoration/

g++ -I.. -I./plugins -o greycstoration4gimp greycstoration4gimp.cpp
`gimptool-2.0 --cflags` `gimptool-2.0 --libs` -lpthread -O3 -fno-math-errno
-ftree-vectorize -momit-leaf-frame-pointer -funroll-loops -march=native
-mtune=native
takes several hours CPU time on my 2.4GHz Core2.

Using -O0 gets it down to 3s, just using -O2 still results in a number of
hours.

This seems excessive to me.


-- 
           Summary: g++ 4.3 takes hours to compile greycstoration
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kurt at garloff dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39210