diff options
Diffstat (limited to 'gcc/fortran/trans-array.c')
| -rw-r--r-- | gcc/fortran/trans-array.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/gcc/fortran/trans-array.c b/gcc/fortran/trans-array.c index 731fb19..62ecafe 100644 --- a/gcc/fortran/trans-array.c +++ b/gcc/fortran/trans-array.c @@ -288,27 +288,26 @@ gfc_conv_descriptor_ubound (tree desc, tree dim) } -/* Generate an initializer for a static pointer or allocatable array. */ +/* Build an null array descriptor constructor. */ -void -gfc_trans_static_array_pointer (gfc_symbol * sym) +tree +gfc_build_null_descriptor (tree type) { - tree tmp; tree field; - tree type; + tree tmp; - assert (TREE_STATIC (sym->backend_decl)); - /* Just zero the data member. */ - type = TREE_TYPE (sym->backend_decl); assert (GFC_DESCRIPTOR_TYPE_P (type)); assert (DATA_FIELD == 0); field = TYPE_FIELDS (type); + /* Set a NULL data pointer. */ tmp = tree_cons (field, null_pointer_node, NULL_TREE); tmp = build1 (CONSTRUCTOR, type, tmp); TREE_CONSTANT (tmp) = 1; TREE_INVARIANT (tmp) = 1; - DECL_INITIAL (sym->backend_decl) = tmp; + /* All other fields are ignored. */ + + return tmp; } @@ -422,6 +421,20 @@ gfc_add_ss_to_loop (gfc_loopinfo * loop, gfc_ss * head) } +/* Generate an initializer for a static pointer or allocatable array. */ + +void +gfc_trans_static_array_pointer (gfc_symbol * sym) +{ + tree type; + + assert (TREE_STATIC (sym->backend_decl)); + /* Just zero the data member. */ + type = TREE_TYPE (sym->backend_decl); + DECL_INITIAL (sym->backend_decl) =gfc_build_null_descriptor (type); +} + + /* Generate code to allocate an array temporary, or create a variable to hold the data. */ |