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authorJanus Weil <janus@gcc.gnu.org>2019-01-08 20:29:01 +0100
committerJanus Weil <janus@gcc.gnu.org>2019-01-08 20:29:01 +0100
commit903ecc6c2a564e4d3754082e2025e1d80fddf5a4 (patch)
tree6c542493d79d23d00525cdf2894dbeeee6e35f86 /gcc/fortran/class.c
parent6976bc87f162c542c2b92ee222401150af3fcc34 (diff)
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re PR fortran/88047 (ICE in gfc_find_vtab, at fortran/class.c:2843)
2019-01-08 Janus Weil <janus@gcc.gnu.org> PR fortran/88047 * class.c (gfc_find_vtab): For polymorphic typespecs, the components of the class container may not be available (in case of invalid code). 2019-01-08 Janus Weil <janus@gcc.gnu.org> PR fortran/88047 * gfortran.dg/class_69.f90: New test case. From-SVN: r267735
Diffstat (limited to 'gcc/fortran/class.c')
-rw-r--r--gcc/fortran/class.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/fortran/class.c b/gcc/fortran/class.c
index 77f0fca..8809b5b 100644
--- a/gcc/fortran/class.c
+++ b/gcc/fortran/class.c
@@ -2846,7 +2846,10 @@ gfc_find_vtab (gfc_typespec *ts)
case BT_DERIVED:
return gfc_find_derived_vtab (ts->u.derived);
case BT_CLASS:
- return gfc_find_derived_vtab (ts->u.derived->components->ts.u.derived);
+ if (ts->u.derived->components && ts->u.derived->components->ts.u.derived)
+ return gfc_find_derived_vtab (ts->u.derived->components->ts.u.derived);
+ else
+ return NULL;
default:
return find_intrinsic_vtab (ts);
}