re PR middle-end/86979 (ICE: in maybe_record_trace_start, at dwarf2cfi.c:2348 with -m32 on darwin)

	PR middle-end/86979
	* gcc.dg/pr86979.c: New test.

From-SVN: r269752

gcc/ChangeLog

 2019-03-18  Andrey Belevantsev  <abel@ispras.ru>
 
-	PR middle-end/89676
+	PR middle-end/86979
 	* sel-sched.c (compute_av_set_at_bb_end): When we have an ineligible
 	successor, use NULL as its av set.
 

gcc/testsuite/ChangeLog

+2019-03-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/86979
+	* gcc.dg/pr86979.c: New test.
+
 2019-03-17  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/88008

gcc/testsuite/gcc.dg/pr86979.c

+/* { dg-options "-Og -fPIC -fschedule-insns2 -fselective-scheduling2 -fno-tree-fre --param=max-sched-extend-regions-iters=2" } */
+/* { dg-require-effective-target scheduling } */
+/* { dg-require-effective-target fpic } */
+
+#include "../gcc.c-torture/compile/pr69102.c"