[Bug tree-optimization/62079] [4.9/5 Regression] ICE: in calc_dfs_tree, at dominance.c:401 with -fnon-call-exceptions

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62079

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bernds at gcc dot gnu.org

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Funny that peep2s peep2_do_cleanup_cfg variable is write-only.  Bernd
introduced that, a simple

Index: recog.c
===================================================================
--- recog.c     (revision 213909)
+++ recog.c     (working copy)
@@ -3553,6 +3553,8 @@ peephole2_optimize (void)
   BITMAP_FREE (live);
   if (peep2_do_rebuild_jump_labels)
     rebuild_jump_labels (get_insns ());
+  if (peep2_do_cleanup_cfg)
+    cleanup_cfg (CLEANUP_CFG_CHANGED);
 }
 #endif /* HAVE_peephole2 */

fixes the testcase.