[Bug tree-optimization/109075] [13 Regression] rnflow hangs at -O3

[pault at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109075

Paul Thomas <pault at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|DUPLICATE                   |INVALID
                 CC|                            |pault at gcc dot gnu.org
      Known to work|12.2.0                      |
           Keywords|                            |needs-bisection

--- Comment #10 from Paul Thomas <pault at gcc dot gnu.org> ---
See comment at rnflow.f90:899 - As Richard Biener suggested to the list
-fdefault-integer-8 fixes the problem but breaks tfft2 of the polyhedron suite.

Better is:
      integer(8), parameter   :: jmul =  843314861  ! multiplicateur
      integer(8), parameter   :: jadd =  453816693  ! constante additive

Cheers

Paul