diff options
Diffstat (limited to 'gcc/sched.c')
| -rw-r--r-- | gcc/sched.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index 9da35d0..48b13ff 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -4497,9 +4497,17 @@ schedule_insns (dump_file) /* Schedule each basic block, block by block. */ - if (NEXT_INSN (basic_block_end[n_basic_blocks-1]) == 0 - || (GET_CODE (basic_block_end[n_basic_blocks-1]) != NOTE - && GET_CODE (basic_block_end[n_basic_blocks-1]) != CODE_LABEL)) + /* ??? Add a NOTE after the last insn of the last basic block. It is not + known why this is done. */ + + insn = basic_block_end[n_basic_blocks-1]; + if (NEXT_INSN (insn) == 0 + || (GET_CODE (insn) != NOTE + && GET_CODE (insn) != CODE_LABEL + /* Don't emit a NOTE if it would end up between an unconditional + jump and a BARRIER. */ + && ! (GET_CODE (insn) == JUMP_INSN + && GET_CODE (NEXT_INSN (insn)) == BARRIER))) emit_note_after (NOTE_INSN_DELETED, basic_block_end[n_basic_blocks-1]); for (b = 0; b < n_basic_blocks; b++) |