[PATCH] D22320: Codegen: Tail Duplication: Only duplicate into layout pred if it is a CFG Pred.

[Eric Christopher via llvm-commits]

echristo added inline comments.

================
Comment at: lib/CodeGen/TailDuplicator.cpp:817
@@ -816,2 +816,3 @@
   if (PrevBB->succ_size() == 1 &&
+      *PrevBB->succ_begin() == TailBB &&
       !TII->AnalyzeBranch(*PrevBB, PriorTBB, PriorFBB, PriorCond, true) &&
----------------
Can you update and elaborate on the comment for this?


Repository:
  rL LLVM

http://reviews.llvm.org/D22320