flow.c (merge_blocks_move_successor_nojumps): Delete the BARRIER at the end of the...

        * flow.c (merge_blocks_move_successor_nojumps): Delete the
        BARRIER at the end of the successor, not the BARRIER before
        the successor.

From-SVN: r29545

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9bdf981..38e0c15 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 Tue Sep 21 06:45:31 1999  Jeffrey A Law  (law@cygnus.com)
 
+       * flow.c (merge_blocks_move_successor_nojumps): Delete the
+       BARRIER at the end of the successor, not the BARRIER before
+       the successor.
+
        * pa.c (pa_add_gc_roots): Fix thinko in last change.
 
 Tue Sep 21 05:29:17 1999  Richard Earnshaw (rearnsha@arm.com)

diff --git a/gcc/flow.c b/gcc/flow.c
index 988ccc7..95743d8 100644 (file)
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -1907,10 +1907,13 @@ merge_blocks_move_successor_nojumps (e, a, b)
   end = b->end;
   insertpoint = a->end;
 
-  /* We want to delete the BARRIER before the start of the insns we are
+  /* We want to delete the BARRIER after the end of the insns we are
      going to move.  If we don't find a BARRIER, then do nothing.  This
-     can happen in some cases if we have labels we can not delete.  */
-  barrier = prev_nonnote_insn (start);
+     can happen in some cases if we have labels we can not delete. 
+
+     Similarly, do nothing if we can not delete the label at the start
+     of the target block.  */
+  barrier = next_nonnote_insn (end);
   if (GET_CODE (barrier) != BARRIER
       || (GET_CODE (b->head) == CODE_LABEL
          && ! can_delete_label_p (b->head)))