[Bug fortran/26832] New: ICE: verify_ssa failed

[anlauf at gmx dot de]

Howdy,

there is a recent regression which shows up in the
attached code which is stripped down from LAPACK's
dlasv2.f

% gfc --version
GNU Fortran 95 (GCC) 4.2.0 20060323 (experimental)
% gfc -c dlasv2.f -O               
dlasv2.f: In function 'dlasv2':
dlasv2.f:3: error: missing definition
for SSA_NAME: t_35 in statement:
D.922_38 = t_35 + mm_36;
dlasv2.f:3: internal compiler error: verify_ssa failed

Interestingly, the ICE does *NOT* show up when
enabling -ffast-math, commenting out the marked line
in the code or playing around with the IF constructs.

Cheers,
-ha


-- 
           Summary: ICE: verify_ssa failed
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: anlauf at gmx dot de
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26832