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author | Thomas Koenig <tkoenig@gcc.gnu.org> | 2020-08-10 19:10:26 +0200 |
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committer | Giuliano Belinassi <giuliano.belinassi@usp.br> | 2020-08-17 15:07:55 -0300 |
commit | 74cbd48dcd928de8cc60fae9ca345514f074c58a (patch) | |
tree | 98441ee58487759bc4e748c084b1266153ba60c4 /gcc/testsuite | |
parent | c2574d63c52a690a703b802142ffaeca115fad84 (diff) |
Fix NULL pointer dereference in doloop_contained_function_call.
gcc/fortran/ChangeLog:
PR fortran/96556
* frontend-passes.c (doloop_contained_function_call):
Do not dereference a NULL pointer for value.function.esym.
gcc/testsuite/ChangeLog:
PR fortran/96556
* gfortran.dg/do_check_15.f90: New test.
Diffstat (limited to 'gcc/testsuite')
-rw-r--r-- | gcc/testsuite/gfortran.dg/do_check_15.f90 | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/do_check_15.f90 b/gcc/testsuite/gfortran.dg/do_check_15.f90 new file mode 100644 index 00000000000..f67452b4660 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/do_check_15.f90 @@ -0,0 +1,58 @@ +! { dg-do compile } +! PR fortran/96556 - this used to cause an ICE. +! Test case by Juergen Reuter. +module polarizations + + implicit none + private + + type :: smatrix_t + private + integer :: dim = 0 + integer :: n_entry = 0 + integer, dimension(:,:), allocatable :: index + contains + procedure :: write => smatrix_write + end type smatrix_t + + type, extends (smatrix_t) :: pmatrix_t + private + contains + procedure :: write => pmatrix_write + procedure :: normalize => pmatrix_normalize + end type pmatrix_t + +contains + + subroutine msg_error (string) + character(len=*), intent(in), optional :: string + end subroutine msg_error + + subroutine smatrix_write (object) + class(smatrix_t), intent(in) :: object + end subroutine smatrix_write + + subroutine pmatrix_write (object) + class(pmatrix_t), intent(in) :: object + call object%smatrix_t%write () + end subroutine pmatrix_write + + subroutine pmatrix_normalize (pmatrix) + class(pmatrix_t), intent(inout) :: pmatrix + integer :: i, hmax + logical :: fermion, ok + do i = 1, pmatrix%n_entry + associate (index => pmatrix%index(:,i)) + if (index(1) == index(2)) then + call error ("diagonal must be real") + end if + end associate + end do + contains + subroutine error (msg) + character(*), intent(in) :: msg + call pmatrix%write () + end subroutine error + end subroutine pmatrix_normalize + +end module polarizations |