[Bug tree-optimization/43627] New: [4.5 Regression] slow compilation

[jv244 at cam dot ac dot uk]

The to-be-attached file compiles very slowly with 4.5:

4.3 ([gcc-4_3-branch revision 135036]): 37s
4.4 ([gcc-4_4-branch revision 150482]): 30s
4.5 ([trunk revision 157940]):        6m35s

 gfortran -fbounds-check -g -O3 -ffast-math -funroll-loops -ftree-vectorize
-march=native -c hog.f90


-- 
           Summary: [4.5 Regression] slow compilation
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: compile-time-hog
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43627