| commit | 6f8a5ddcd8d7e5b041ff083009ae84de0e6e588b | [log] [tgz] |
|---|---|---|
| author | Duncan Sands <baldrick@free.fr> | Wed Nov 17 20:49:12 2010 +0000 |
| committer | Duncan Sands <baldrick@free.fr> | Wed Nov 17 20:49:12 2010 +0000 |
| tree | 5bc9a4b56f9ba384112ab0b5cae746282ba66aa7 | |
| parent | 5aba9f694fbfb78df2aa2a228e85ba4c27f3037b [diff] |
Before replacing a phi node with a different value, it needs to be checked that this won't break LCSSA form. Change the existing checking method to a more direct one: rather than seeing if all predecessors belong to the loop, check that the replacing value is either not in any loop or is in a loop that contains the phi node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119556 91177308-0d34-0410-b5e6-96231b3b80d8