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| author | Paul Thomas <pault@gcc.gnu.org> | 2007-12-31 18:05:10 +0000 |
|---|---|---|
| committer | Paul Thomas <pault@gcc.gnu.org> | 2007-12-31 18:05:10 +0000 |
| commit | 63287e10a8527f9ed9d7c3939943ab1bc66aa46b (patch) | |
| tree | daf721ae8c46819c335ccc6f7647203507b90390 /gcc/fortran/interface.c | |
| parent | 881466d851f3c806692bda4569a4534d89848104 (diff) | |
| download | gcc-63287e10a8527f9ed9d7c3939943ab1bc66aa46b.zip gcc-63287e10a8527f9ed9d7c3939943ab1bc66aa46b.tar.gz gcc-63287e10a8527f9ed9d7c3939943ab1bc66aa46b.tar.bz2 | |
re PR fortran/34558 (ICE with same TYPE in both program and interface)
2007-12-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/34558
* interface.c (gfc_compare_types): Prevent linked lists from
putting this function into an endless recursive loop.
2007-12-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/34558
* gfortran.dg/linked_list_1.f90: New test.
From-SVN: r131238
Diffstat (limited to 'gcc/fortran/interface.c')
| -rw-r--r-- | gcc/fortran/interface.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/fortran/interface.c b/gcc/fortran/interface.c index b242d07..717f3b7 100644 --- a/gcc/fortran/interface.c +++ b/gcc/fortran/interface.c @@ -407,7 +407,17 @@ gfc_compare_derived_types (gfc_symbol *derived1, gfc_symbol *derived2) if (dt1->dimension && gfc_compare_array_spec (dt1->as, dt2->as) == 0) return 0; - if (gfc_compare_types (&dt1->ts, &dt2->ts) == 0) + /* Make sure that link lists do not put this function in an + endless loop! */ + if (!(dt1->ts.type == BT_DERIVED && derived1 == dt1->ts.derived) + && !(dt1->ts.type == BT_DERIVED && derived1 == dt1->ts.derived) + && gfc_compare_types (&dt1->ts, &dt2->ts) == 0) + return 0; + + else if (dt1->ts.type != BT_DERIVED + || derived1 != dt1->ts.derived + || dt2->ts.type != BT_DERIVED + || derived2 != dt2->ts.derived) return 0; dt1 = dt1->next; |