diff options
Diffstat (limited to 'gcc/loop-unswitch.c')
| -rw-r--r-- | gcc/loop-unswitch.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c index f276b7307a4..25728c2bf62 100644 --- a/gcc/loop-unswitch.c +++ b/gcc/loop-unswitch.c @@ -402,5 +402,9 @@ unswitch_loop (struct loops *loops, struct loop *loop, basic_block unswitch_on) fix_loop_placement (loop); fix_loop_placement (nloop); + /* Preserve the simple loop preheaders. */ + loop_split_edge_with (loop_preheader_edge (loop), NULL_RTX, loops); + loop_split_edge_with (loop_preheader_edge (nloop), NULL_RTX, loops); + return nloop; } |
