[Bug middle-end/40106] [4.4/4.5 Regression] Time increase for the Polyhedron test air.f90 due to bad optimization

[dominiq at lps dot ens dot fr]

------- Comment #30 from dominiq at lps dot ens dot fr  2009-09-03 07:09 -------
This is a regression from gcc 4.3.4 (gfc=trunk r151295, gfc44=4.4.1,
gfc43=4.3.4):

[ibook-dhum] test/dbg_air% gfc -S -m64 -O2 -funsafe-math-optimizations
air_db.f90                                                                    
[ibook-dhum] test/dbg_air% grep pow air_db.s                                   
                                                                          call 
  _pow
        call    _pow
[ibook-dhum] test/dbg_air% gfc44 -S -m64 -O2 -funsafe-math-optimizations
air_db.f90
[ibook-dhum] test/dbg_air% grep pow air_db.s
        call    _pow
        call    _pow
[ibook-dhum] test/dbg_air% gfc43 -S -m64 -O2 -funsafe-math-optimizations
air_db.f90
[ibook-dhum] test/dbg_air% grep pow air_db.s
[ibook-dhum] test/dbg_air% 


-- 

dominiq at lps dot ens dot fr changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Time increase for the       |[4.4/4.5 Regression] Time
                   |Polyhedron test air.f90 due |increase for the Polyhedron
                   |to bad optimization         |test air.f90 due to bad
                   |                            |optimization


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40106