diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-03-14 12:54:25 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-03-14 12:54:25 +0000 |
| commit | 671fe6509b7cf0b182a018b77f91ae494b2e32c1 (patch) | |
| tree | 2e1efaa6b3462efc84836a6f0f0cf7d8df0b5654 /gcc/cfghooks.c | |
| parent | 0f3c9fa8d4f77947e0b699195dc067d7a832b119 (diff) | |
| download | gcc-671fe6509b7cf0b182a018b77f91ae494b2e32c1.tar.gz | |
2014-03-14 Richard Biener <rguenther@suse.de>
PR middle-end/60518
* cfghooks.c (split_block): Properly adjust all loops the
block was a latch of.
* g++.dg/pr60518.C: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208567 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfghooks.c')
| -rw-r--r-- | gcc/cfghooks.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/cfghooks.c b/gcc/cfghooks.c index 7cf3cd50a66..bc1634aac87 100644 --- a/gcc/cfghooks.c +++ b/gcc/cfghooks.c @@ -510,9 +510,13 @@ split_block (basic_block bb, void *i) if (current_loops != NULL) { + edge_iterator ei; + edge e; add_bb_to_loop (new_bb, bb->loop_father); - if (bb->loop_father->latch == bb) - bb->loop_father->latch = new_bb; + /* Identify all loops bb may have been the latch of and adjust them. */ + FOR_EACH_EDGE (e, ei, new_bb->succs) + if (e->dest->loop_father->latch == bb) + e->dest->loop_father->latch = new_bb; } res = make_single_succ_edge (bb, new_bb, EDGE_FALLTHRU); |