[Bug tree-optimization/44508] New: libgomp.fortran/vla1.f90 ICE on s390

[jakub at gcc dot gnu dot org]

./f951 -m31 -O3 vla1.f90 -I ../s390*/libgomp/ -fopenmp -march=z9-109 -mtune=z10
ICEs on 4.4 branch, even in frozz-compiler.  The problem seems to be that
substitute_and_fold DCEs some trivially dead stmts and the removal release_defs
the LHS SSA_NAMEs, which are still referenced in various vrp structures.
Then identify_jump_threads is called and ICEs on those already freed ssa-names.


-- 
           Summary: libgomp.fortran/vla1.f90 ICE on s390
           Product: gcc
           Version: 4.4.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44508