diff options
| author | Jim Wilson <wilson@gcc.gnu.org> | 1994-08-14 16:13:22 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1994-08-14 16:13:22 -0700 |
| commit | 40e81af5f03b079ca6d0dfefc5e5f13241b66271 (patch) | |
| tree | 1d7ac72401277122e1d75c6af2fda1bb891603f7 /gcc/unroll.c | |
| parent | 87fc3db7132e6199bac0e699194ccac8902ebc0a (diff) | |
| download | gcc-40e81af5f03b079ca6d0dfefc5e5f13241b66271.zip gcc-40e81af5f03b079ca6d0dfefc5e5f13241b66271.tar.gz gcc-40e81af5f03b079ca6d0dfefc5e5f13241b66271.tar.bz2 | |
(loop_iterations): Use PREV_INSN not prev_nonnote_insn.
From-SVN: r7925
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index fafa627..7a3c4f9 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -3093,7 +3093,11 @@ loop_iterations (loop_start, loop_end) loop_final_value = 0; loop_iteration_var = 0; - last_loop_insn = prev_nonnote_insn (loop_end); + /* We used to use pren_nonnote_insn here, but that fails because it might + accidentally get the branch for a contained loop if the branch for this + loop was deleted. We can only trust branches immediately before the + loop_end. */ + last_loop_insn = PREV_INSN (loop_end); comparison = get_condition_for_loop (last_loop_insn); if (comparison == 0) |