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

From-SVN: r55877

gcc/ChangeLog

+Tue Jul 30 11:21:44 2002  J"orn Rennecke <joern.rennecke@superh.com>
+
+	* unroll.c (copy_loop_body): Don't copy NOTE_INSN_LOOP_CONT.
+
 2002-07-30  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* fold-const.c: Fix comment typos.

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));
 	}
     }