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| author | Jakub Jelinek <jakub@redhat.com> | 2019-05-29 16:08:57 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2019-05-29 16:08:57 +0200 |
| commit | ffeebc4ff1100a14f439314f90651b42e30fb81a (patch) | |
| tree | f663fc322b17ac51f7fd85bda31b11ab0a116b9a /gcc/fortran/trans-decl.c | |
| parent | b54ecc769f598fcb7f88c6a7c9217ee7c32be789 (diff) | |
| download | gcc-ffeebc4ff1100a14f439314f90651b42e30fb81a.zip gcc-ffeebc4ff1100a14f439314f90651b42e30fb81a.tar.gz gcc-ffeebc4ff1100a14f439314f90651b42e30fb81a.tar.bz2 | |
re PR fortran/90329 (Incompatibility between gfortran and C lapack calls)
PR fortran/90329
* lang.opt (fbroken-callers): Remove.
(ftail-call-workaround, ftail-call-workaround=): New options.
* gfortran.h (struct gfc_namespace): Add implicit_interface_calls.
* interface.c (gfc_procedure_use): Set implicit_interface_calls
for calls to implicit interface procedures.
* trans-decl.c (create_function_arglist): Use flag_tail_call_workaround
instead of flag_broken_callers. If it is not 2, also require
sym->ns->implicit_interface_calls.
* invoke.texi (fbroken-callers): Remove documentation.
(ftail-call-workaround, ftail-call-workaround=): Document.
From-SVN: r271738
Diffstat (limited to 'gcc/fortran/trans-decl.c')
| -rw-r--r-- | gcc/fortran/trans-decl.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c index 7cf1ec54..b8e0727 100644 --- a/gcc/fortran/trans-decl.c +++ b/gcc/fortran/trans-decl.c @@ -2520,9 +2520,12 @@ create_function_arglist (gfc_symbol * sym) /* 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 + if (flag_tail_call_workaround + && f->sym->ts.u.cl && f->sym->ts.u.cl->length - && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT) + && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT + && (flag_tail_call_workaround == 2 + || f->sym->ns->implicit_interface_calls)) DECL_HIDDEN_STRING_LENGTH (length) = 1; /* Remember the passed value. */ |