From: Bob Wilson <bob.wilson@apple.com>
Date: Tue, 16 Mar 2010 23:40:32 +0000 (+0000)
Subject: Remove a check that can no longer be true, after r84803.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=a1bdfc3c7fcd7bf8e42c6e4805bfb694230c7a55;p=oota-llvm.git

Remove a check that can no longer be true, after r84803.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98694 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index 13ae43daf6d..b45abc7b97d 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -1143,22 +1143,6 @@ ReoptimizeBlock:
           !IsBetterFallthrough(PriorTBB, MBB))
         DoTransform = false;
 
-      // We don't want to do this transformation if we have control flow like:
-      //   br cond BB2
-      // BB1:
-      //   ..
-      //   jmp BBX
-      // BB2:
-      //   ..
-      //   ret
-      //
-      // In this case, we could actually be moving the return block *into* a
-      // loop!
-      if (DoTransform && !MBB->succ_empty() &&
-          (!PriorTBB->canFallThrough() || PriorTBB->empty()))
-        DoTransform = false;
-
-
       if (DoTransform) {
         // Reverse the branch so we will fall through on the previous true cond.
         SmallVector<MachineOperand, 4> NewPriorCond(PriorCond);