[Bug fortran/102460] New: fortran internal compile error in coverage.c

[davidsch at fedoraproject dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102460

            Bug ID: 102460
           Summary: fortran internal compile error in coverage.c
           Product: gcc
           Version: 11.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: davidsch at fedoraproject dot org
  Target Milestone: ---

Created attachment 51495
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51495&action=edit
two source files and the compile commands to reproduce the issue

the exact version of GCC:
gcc-gfortran-11.2.1-1.fc34.x86_64
GNU Fortran (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1)

the system type:
Fedora 34

the options given when GCC was configured/built:
Not sure, Fedoras default

the complete command line that triggers the bug:
f95 -ftest-coverage -save-temps -c MOD2.f

the compiler output (error messages, warnings, etc.):
during IPA pass: profile
MOD2.f:6:9:

    6 |       USE MOD1,only : f1
      |         ^
internal compiler error: in coverage_begin_function, at coverage.c:662
Please submit a full bug report,
with preprocessed source if appropriate.

the preprocessed file (*.i*) that triggers the bug:
No *.i* files are generated.

I have attached two source files and the compile commands as attachment.

PS: I have observed the same issue on debian with gcc 10, while gcc 8 works.
PPS: Without coverage instruction, no error is raised.