+Wed May 5 23:44:15 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
+
+ * unroll.c (copy_loop_body): Don't copy VTOP notes from copy_notes_from.
+
Wed May 5 16:26:13 1999 Vladimir Makarov <vmakarov@tofu.to.cygnus.com>
* function.c (purge_addressof_replacements): Rename into
{
for (insn = copy_notes_from; insn != loop_end; insn = NEXT_INSN (insn))
{
+ /* 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. */
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_BASIC_BLOCK
+ && NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_VTOP)
emit_note (NOTE_SOURCE_FILE (insn), NOTE_LINE_NUMBER (insn));
}
}