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| author | Richard Biener <rguenther@suse.de> | 2017-05-30 07:49:00 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-05-30 07:49:00 +0000 |
| commit | 892d61696c447025d6ccc52eb85a4ab688e122a3 (patch) | |
| tree | 08f4e9146de208eae527980905c222ef699cd61b /gcc/cfgexpand.c | |
| parent | 63523736d018998672b707e669d0536d10cb735e (diff) | |
| download | gcc-892d61696c447025d6ccc52eb85a4ab688e122a3.zip gcc-892d61696c447025d6ccc52eb85a4ab688e122a3.tar.gz gcc-892d61696c447025d6ccc52eb85a4ab688e122a3.tar.bz2 | |
re PR tree-optimization/80876 (ICE in verify_loop_structure, at cfgloop.c:1644 (error: loop 1's latch does not have an edge to its header))
2017-05-30 Richard Biener <rguenther@suse.de>
PR middle-end/80876
* cfgexpand.c (expand_gimple_cond): Fixup preserving loops again.
* gcc.dg/torture/pr80876.c: New testcase.
From-SVN: r248633
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index 9965310..c5b4d70 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -2504,9 +2504,9 @@ expand_gimple_cond (basic_block bb, gcond *stmt) new_bb->count = false_edge->count; new_bb->frequency = EDGE_FREQUENCY (false_edge); add_bb_to_loop (new_bb, dest->loop_father); - if (bb->loop_father->latch == bb - && bb->loop_father->header == dest) - bb->loop_father->latch = new_bb; + if (dest->loop_father->latch == bb + && dest->loop_father->header == dest) + dest->loop_father->latch = new_bb; new_edge = make_edge (new_bb, dest, 0); new_edge->probability = REG_BR_PROB_BASE; new_edge->count = new_bb->count; |