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| author | Jeff Law <law@gcc.gnu.org> | 1997-12-06 17:31:01 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-12-06 17:31:01 -0700 |
| commit | 956d69504d77d301015532d2f0564213f0efc706 (patch) | |
| tree | ec80f8d1e46852ac1ba45aecdcda7201c302ac6f /gcc/unroll.c | |
| parent | 27b6b158c29b45fd80c2f104d5da1f4bc818d7ab (diff) | |
| download | gcc-956d69504d77d301015532d2f0564213f0efc706.zip gcc-956d69504d77d301015532d2f0564213f0efc706.tar.gz gcc-956d69504d77d301015532d2f0564213f0efc706.tar.bz2 | |
Merge from gcc-2.8
From-SVN: r16987
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 688ee64..b2879b3 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -2160,6 +2160,7 @@ 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); @@ -2171,8 +2172,10 @@ 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)) |