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Diffstat (limited to 'gcc/testsuite/gfortran.dg/alloc_comp_auto_array_1.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/alloc_comp_auto_array_1.f90 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/alloc_comp_auto_array_1.f90 b/gcc/testsuite/gfortran.dg/alloc_comp_auto_array_1.f90 new file mode 100644 index 000000000..915b2108f --- /dev/null +++ b/gcc/testsuite/gfortran.dg/alloc_comp_auto_array_1.f90 @@ -0,0 +1,42 @@ +! { dg-do run } +! Fix for PR29699 - see below for details. +! +! Contributed by Tobias Burnus <burnus@gcc.gnu.org> +! +PROGRAM vocabulary_word_count + + IMPLICIT NONE + TYPE VARYING_STRING + CHARACTER,DIMENSION(:),ALLOCATABLE :: chars + ENDTYPE VARYING_STRING + + INTEGER :: list_size=200 + + call extend_lists2 + +CONTAINS + +! First the original problem: vocab_swap not being referenced caused +! an ICE because default initialization is used, which results in a +! call to gfc_conv_variable, which calls gfc_get_symbol_decl. + + SUBROUTINE extend_lists1 + type(VARYING_STRING),DIMENSION(list_size) :: vocab_swap + ENDSUBROUTINE extend_lists1 + +! Curing this then uncovered two more problems: If vocab_swap were +! actually referenced, an ICE occurred in the gimplifier because +! the declaration for this automatic array is presented as a +! pointer to the array, rather than the array. Curing this allows +! the code to compile but it bombed out at run time because the +! malloc/free occurred in the wrong order with respect to the +! nullify/deallocate of the allocatable components. + + SUBROUTINE extend_lists2 + type(VARYING_STRING),DIMENSION(list_size) :: vocab_swap + allocate (vocab_swap(1)%chars(10)) + if (.not.allocated(vocab_swap(1)%chars)) call abort () + if (allocated(vocab_swap(10)%chars)) call abort () + ENDSUBROUTINE extend_lists2 + +ENDPROGRAM vocabulary_word_count |