diff options
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index 3c23d6a674b..120e2741f3c 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -2138,6 +2138,7 @@ back_branch_in_range_p (insn, loop_start, loop_end) rtx loop_start, loop_end; { rtx p, q, target_insn; + rtx orig_loop_end = loop_end; /* Stop before we get to the backward branch at the end of the loop. */ loop_end = prev_nonnote_insn (loop_end); @@ -2149,8 +2150,10 @@ back_branch_in_range_p (insn, loop_start, loop_end) while (INSN_DELETED_P (insn)) insn = NEXT_INSN (insn); - /* Check for the case where insn is the last insn in the loop. */ - if (insn == loop_end) + /* Check for the case where insn is the last insn in the loop. Deal + with the case where INSN was a deleted loop test insn, in which case + it will now be the NOTE_LOOP_END. */ + if (insn == loop_end || insn == orig_loop_end) return 0; for (p = NEXT_INSN (insn); p != loop_end; p = NEXT_INSN (p)) |