Initialize loop data first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55792 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index f9046a1a05539aaca6f1fbd5065e087dc22fec55..691a67a4275141964c45fc142ce023f3d085e9e7 100644 (file)
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -418,6 +418,7 @@ unsigned LoopUnswitch::getLoopUnswitchCost(Value *LIC) {
 /// unswitch the loop, reprocess the pieces, then return true.
 bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val){
 
+  initLoopData();
   Function *F = loopHeader->getParent();
 
   // Do not unswitch if the function is optimized for size.
@@ -441,8 +442,6 @@ bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val){
     return false;
   }
 
-  initLoopData();
-
   Constant *CondVal;
   BasicBlock *ExitBlock;
   if (IsTrivialUnswitchCondition(LoopCond, &CondVal, &ExitBlock)) {