| commit | 8ac7be5005ee6567bcdeb4ea83c8e477cf2f6d68 | [log] [tgz] |
|---|---|---|
| author | David Majnemer <david.majnemer@gmail.com> | Thu May 26 07:11:09 2016 +0000 |
| committer | David Majnemer <david.majnemer@gmail.com> | Thu May 26 07:11:09 2016 +0000 |
| tree | 09ac41c1adf4b91fd38280c27e3695be01008211 | |
| parent | b09e1d33f63e862e27cd3dd9795262c905ac7445 [diff] |
[MergedLoadStoreMotion] Don't transform across may-throw calls It is unsafe to hoist a load before a function call which may throw, the throw might prevent a pointer dereference. Likewise, it is unsafe to sink a store after a call which may throw. The caller might be able to observe the difference. This fixes PR27858. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270828 91177308-0d34-0410-b5e6-96231b3b80d8