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| author | J"orn Rennecke <joern.rennecke@superh.com> | 2002-07-30 17:37:58 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2002-07-30 18:37:58 +0100 |
| commit | 0a7564014ae889d9eea364e919d7b0367ecf8816 (patch) | |
| tree | c892a9f2d4f2ace90160912d9862852da9b8fb9a /gcc/unroll.c | |
| parent | 68e82b83349899173cd32116c387c7b56c917341 (diff) | |
| download | gcc-0a7564014ae889d9eea364e919d7b0367ecf8816.zip gcc-0a7564014ae889d9eea364e919d7b0367ecf8816.tar.gz gcc-0a7564014ae889d9eea364e919d7b0367ecf8816.tar.bz2 | |
* unroll.c (copy_loop_body): Don't copy NOTE_INSN_LOOP_CONT.
From-SVN: r55877
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index 85fd5d2..85dff19 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)); } } |