[Bug rtl-optimization/78127] New: [5/6/7 Regression] AArch64 internal compiler error: in lra_eliminate, at lra-eliminations.c:1440

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78127

            Bug ID: 78127
           Summary: [5/6/7 Regression] AArch64 internal compiler error: in
                    lra_eliminate, at lra-eliminations.c:1440
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
  Target Milestone: ---

The fortran OpenMP testcase gfortran.dg/gomp/pr39354.f90  ICEs when run with an
explicit -O2:

aarch64-none-linux-gnu-gfortran -O2 -fopenmp -S pr39354.f90

pr39354.f90:37:0:

       END

internal compiler error: in lra_eliminate, at lra-eliminations.c:1439
0xa3599f lra_eliminate(bool, bool)
        $SRC/gcc/lra-eliminations.c:1439
0xa1df1a lra(_IO_FILE*)
        $SRC/gcc/lra.c:2481
0x9d608d do_reload
        $SRC/gcc/ira.c:5371
0x9d608d execute
        $SRC/gcc/ira.c:5555
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.