[PATCH] D15630: [WinEH] Update LCSSA to handle catchswitch with handlers inside and outside a loop

[Philip Reames via llvm-commits]

reames added a subscriber: reames.
reames added a comment.

I'm a bit concerned by this change.  Specifically, I'm worried that various optimization passes have built in assumptions about what LCSSA means.  If an optimization pass expects to have to only update PHIs in loop exists, this change could lead to crashes or potentially silent miscompiles.  Have you reviewed the loop transform passes to understand the implications of the changed invariant?


Repository:
  rL LLVM

http://reviews.llvm.org/D15630