diff options
Diffstat (limited to 'gcc/sched-ebb.c')
| -rw-r--r-- | gcc/sched-ebb.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/gcc/sched-ebb.c b/gcc/sched-ebb.c index d7a3db9..b220348 100644 --- a/gcc/sched-ebb.c +++ b/gcc/sched-ebb.c @@ -166,7 +166,8 @@ begin_schedule_ready (rtx insn, rtx last) gcc_assert (NOTE_INSN_BASIC_BLOCK_P (BB_END (bb))); } else - bb = create_basic_block (insn, 0, last_bb); + /* Create an empty unreachable block after the INSN. */ + bb = create_basic_block (NEXT_INSN (insn), NULL_RTX, last_bb); /* split_edge () creates BB before E->DEST. Keep in mind, that this operation extends scheduling region till the end of BB. @@ -728,10 +729,19 @@ advance_target_bb (basic_block bb, rtx insn) else return 0; } - else if (bb != last_bb) - return bb->next_bb; else - gcc_unreachable (); + /* Return next non empty block. */ + { + do + { + gcc_assert (bb != last_bb); + + bb = bb->next_bb; + } + while (bb_note (bb) == BB_END (bb)); + + return bb; + } } /* Fix internal data after interblock movement of jump instruction. |