1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/flow.c b/gcc/flow.c
index 56a0bfa..736e5e6 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -4260,7 +4260,10 @@ void
 recompute_reg_usage (rtx f ATTRIBUTE_UNUSED, int loop_step ATTRIBUTE_UNUSED)
 {
   allocate_reg_life_data ();
-  update_life_info (NULL, UPDATE_LIFE_LOCAL, PROP_REG_INFO);
+  /* distribute_notes in combiner fails to convert some of the REG_UNUSED notes
+   to REG_DEAD notes.  This causes CHECK_DEAD_NOTES in sched1 to abort.  To 
+   solve this update the DEATH_NOTES here.  */
+  update_life_info (NULL, UPDATE_LIFE_LOCAL, PROP_REG_INFO | PROP_DEATH_NOTES);
 }
 
 /* Optionally removes all the REG_DEAD and REG_UNUSED notes from a set of