[Bug tree-optimization/83053] [8 Regression] ICE in vrp_prop::check_array_ref at cc/tree-vrp.c:4811

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83053

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2017-11-19
     Ever confirmed|0                           |1

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
I can't reproduce the ICE with the current top of trunk.  My output is below. 
Running GCC through Valgrind also doesn't show any unexpected errors.  I do see
a ton of test suite failures with this build, though.

$ /opt/notnfs/msebor/build/gcc-git/gcc/gfortran -B
/opt/notnfs/msebor/build/gcc-git/gcc -O1 -S -Wall -Warray-bounds=1
/opt/notnfs/msebor/src/gcc/git/gcc/testsuite/gfortran.dg/actual_array_offset_1.f90
/opt/notnfs/msebor/src/gcc/git/gcc/testsuite/gfortran.dg/actual_array_offset_1.f90:65:16:

     integer :: k
                1
Warning: Unused variable ‘k’ declared at (1) [-Wunused-variable]
/opt/notnfs/msebor/src/gcc/git/gcc/testsuite/gfortran.dg/actual_array_offset_1.f90:129:0:

 end function lower_sortable

Warning: ‘__result_lower_sortable’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
/opt/notnfs/msebor/src/gcc/git/gcc/testsuite/gfortran.dg/actual_array_offset_1.f90:121:0:

 logical function lower_sortable( op1, op2 )

note: ‘__result_lower_sortable’ was declared here