| commit | acdb4aaf9b1f2edd96163c27bcc4e0557014f51e | [log] [tgz] |
|---|---|---|
| author | Andrew Trick <atrick@apple.com> | Sat Jan 07 03:16:50 2012 +0000 |
| committer | Andrew Trick <atrick@apple.com> | Sat Jan 07 03:16:50 2012 +0000 |
| tree | 41ec44bb17baa2ee5521ab042ef949a6a5b782bb | |
| parent | 99b4237c1647156f0e1d3d7e03efdab23ed79778 [diff] |
LSR: Don't optimize loops if an outer loop has no preheader. LoopSimplify may not run on some outer loops, e.g. because of indirect branches. SCEVExpander simply cannot handle outer loops with no preheaders. Fixes rdar://10655343 SCEVExpander segfault. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147718 91177308-0d34-0410-b5e6-96231b3b80d8