Create a wrapper pass for BranchProbabilityInfo.

This new wrapper pass is useful when we want to do branch probability analysis conditionally (e.g. only in PGO mode) but don't want to add one more pass dependence.

http://reviews.llvm.org/D11241

llvm-svn: 242349

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
index cbdacad8f28..08fdcc38c04 100644
--- a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
@@ -215,7 +215,7 @@ public:
     AU.addRequiredID(LoopSimplifyID);
     AU.addRequiredID(LCSSAID);
     AU.addRequired<ScalarEvolution>();
-    AU.addRequired<BranchProbabilityInfo>();
+    AU.addRequired<BranchProbabilityInfoWrapperPass>();
   }
 
   bool runOnLoop(Loop *L, LPPassManager &LPM) override;
@@ -1400,7 +1400,8 @@ bool InductiveRangeCheckElimination::runOnLoop(Loop *L, LPPassManager &LPM) {
   InductiveRangeCheck::AllocatorTy IRCAlloc;
   SmallVector<InductiveRangeCheck *, 16> RangeChecks;
   ScalarEvolution &SE = getAnalysis<ScalarEvolution>();
-  BranchProbabilityInfo &BPI = getAnalysis<BranchProbabilityInfo>();
+  BranchProbabilityInfo &BPI =
+      getAnalysis<BranchProbabilityInfoWrapperPass>().getBPI();
 
   for (auto BBI : L->getBlocks())
     if (BranchInst *TBI = dyn_cast<BranchInst>(BBI->getTerminator()))