* unroll.c (copy_loop_body): Don't copy NOTE_INSN_LOOP_CONT.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@55877 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 6 insertions, 6 deletions

diff --git a/gcc/unroll.c b/gcc/unroll.c
index 85fd5d23e30..85dff19284f 100644
--- a/gcc/unroll.c
+++ b/gcc/unroll.c
@@ -2258,15 +2258,15 @@ copy_loop_body (loop, copy_start, copy_end, map, exit_label, last_iteration,
 	{
 	  /* VTOP notes are valid only before the loop exit test.
 	     If placed anywhere else, loop may generate bad code.
-	     There is no need to test for NOTE_INSN_LOOP_CONT notes
-	     here, since COPY_NOTES_FROM will be at most one or two (for cc0)
-	     instructions before the last insn in the loop, and if the
-	     end test is that short, there will be a VTOP note between
-	     the CONT note and the test.  */
+	     Although COPY_NOTES_FROM will be at most one or two (for cc0)
+	     instructions before the last insn in the loop, COPY_NOTES_FROM
+	     can be a NOTE_INSN_LOOP_CONT note if there is no VTOP note,
+	     as in a do .. while loop.  */
 	  if (GET_CODE (insn) == NOTE
 	      && NOTE_LINE_NUMBER (insn) != NOTE_INSN_DELETED
 	      && NOTE_LINE_NUMBER (insn) != NOTE_INSN_BASIC_BLOCK
-	      && NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_VTOP)
+	      && NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_VTOP
+	      && NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_CONT)
 	    emit_note (NOTE_SOURCE_FILE (insn), NOTE_LINE_NUMBER (insn));
 	}
     }