From 8a0b69f0b089c05d233b8e1a941825b1ceac93bd Mon Sep 17 00:00:00 2001 From: Harald Anlauf Date: Fri, 10 Jul 2020 21:00:13 +0200 Subject: PR fortran/96086 - ICE in gfc_match_select_rank, at fortran/match.c:6645 Handle NULL pointer dereference on SELECT RANK with an invalid assumed-rank array declaration. gcc/fortran/ PR fortran/96086 * match.c (gfc_match_select_rank): Catch NULL pointer dereference. * resolve.c (resolve_assoc_var): Catch NULL pointer dereference that may occur after an illegal declaration. --- gcc/fortran/resolve.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'gcc/fortran/resolve.c') diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index 6bc1c46..d7e6acd 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -9012,7 +9012,9 @@ resolve_assoc_var (gfc_symbol* sym, bool resolve_target) if (as->corank != 0) sym->attr.codimension = 1; } - else if (sym->ts.type == BT_CLASS && (!CLASS_DATA (sym)->as || sym->assoc->rankguessed)) + else if (sym->ts.type == BT_CLASS + && CLASS_DATA (sym) + && (!CLASS_DATA (sym)->as || sym->assoc->rankguessed)) { if (!CLASS_DATA (sym)->as) CLASS_DATA (sym)->as = gfc_get_array_spec (); -- cgit v1.1