diff options
Diffstat (limited to 'gcc/fortran/trans-decl.c')
| -rw-r--r-- | gcc/fortran/trans-decl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c index 8420870..7cf1ec54 100644 --- a/gcc/fortran/trans-decl.c +++ b/gcc/fortran/trans-decl.c @@ -2516,7 +2516,11 @@ create_function_arglist (gfc_symbol * sym) DECL_ARG_TYPE (length) = len_type; TREE_READONLY (length) = 1; gfc_finish_decl (length); - if (f->sym->ts.u.cl + + /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead + to tail calls being disabled. Only do that if we + potentially have broken callers. */ + if (flag_broken_callers && f->sym->ts.u.cl && f->sym->ts.u.cl->length && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT) DECL_HIDDEN_STRING_LENGTH (length) = 1; |