[Bug fortran/102330] New: [12 Regression] ICE in expand_gimple_stmt_1, at cfgexpand.c:3932

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102330

            Bug ID: 102330
           Summary: [12 Regression] ICE in expand_gimple_stmt_1, at
                    cfgexpand.c:3932
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

Started between 20210530 and 20210606 :


$ cat z1.f90
program p
  !$omp master taskloop simd
  do i = 1, 8
  end do
  !$acc parallel loop
  do i = 1, 8
  end do
end


$ gfortran-12-20210905 -c z1.f90 -fopenmp -fopenacc
during RTL pass: expand
z1.f90:5:21:

    5 |   !$acc parallel loop
      |                     ^
internal compiler error: in expand_gimple_stmt_1, at cfgexpand.c:3932
0x8dd6db expand_gimple_stmt_1
        ../../gcc/cfgexpand.c:3931
0x8dd6db expand_gimple_stmt
        ../../gcc/cfgexpand.c:4040
0x8e2bd7 expand_gimple_basic_block
        ../../gcc/cfgexpand.c:6082
0x8e553e execute
        ../../gcc/cfgexpand.c:6808

---

z1.f90:8:3:

    8 | end
      |   ^
Error: non-register as LHS of binary operation
# .MEM_25 = VDEF <.MEM_3>
i = 1 + .offset.9_2;
z1.f90:8:3: Error: non-register as LHS of binary operation
# .MEM_28 = VDEF <.MEM_4>
i = 1 + 8;
during GIMPLE pass: ssa
z1.f90:8:3: internal compiler error: verify_gimple failed
0xf05dd4 verify_gimple_in_cfg(function*, bool)
        ../../gcc/tree-cfg.c:5531
0xdb304e execute_function_todo
        ../../gcc/passes.c:2042
0xdb3ef2 execute_todo
        ../../gcc/passes.c:2096