diff options
Diffstat (limited to 'gcc/fortran/trans-stmt.c')
-rw-r--r-- | gcc/fortran/trans-stmt.c | 34 |
1 files changed, 9 insertions, 25 deletions
diff --git a/gcc/fortran/trans-stmt.c b/gcc/fortran/trans-stmt.c index 9d3197d11bc..05ed23e4c05 100644 --- a/gcc/fortran/trans-stmt.c +++ b/gcc/fortran/trans-stmt.c @@ -159,31 +159,15 @@ gfc_trans_goto (gfc_code * code) assigned_goto = GFC_DECL_ASSIGN_ADDR (se.expr); - code = code->block; - if (code == NULL) - { - target = fold_build1 (GOTO_EXPR, void_type_node, assigned_goto); - gfc_add_expr_to_block (&se.pre, target); - return gfc_finish_block (&se.pre); - } - - /* Check the label list. */ - do - { - target = gfc_get_label_decl (code->label1); - tmp = gfc_build_addr_expr (pvoid_type_node, target); - tmp = fold_build2 (EQ_EXPR, boolean_type_node, tmp, assigned_goto); - tmp = build3_v (COND_EXPR, tmp, - fold_build1 (GOTO_EXPR, void_type_node, target), - build_empty_stmt (input_location)); - gfc_add_expr_to_block (&se.pre, tmp); - code = code->block; - } - while (code != NULL); - gfc_trans_runtime_check (true, false, boolean_true_node, &se.pre, &loc, - "Assigned label is not in the list"); - - return gfc_finish_block (&se.pre); + /* We're going to ignore a label list. It does not really change the + statement's semantics (because it is just a further restriction on + what's legal code); before, we were comparing label addresses here, but + that's a very fragile business and may break with optimization. So + just ignore it. */ + + target = fold_build1 (GOTO_EXPR, void_type_node, assigned_goto); + gfc_add_expr_to_block (&se.pre, target); + return gfc_finish_block (&se.pre); } |