Convert several more passes to use getAnalysisIfAvailable<TargetData>()
instead of getAnalysis<TargetData>().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76982 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp b/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
index 4aad17d..80eac87 100644
--- a/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
+++ b/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
@@ -39,7 +39,6 @@
     bool runOnFunction(Function &F);
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
-      AU.addRequired<TargetData>();
     }
 
     Instruction *
@@ -123,7 +122,7 @@
 /// runOnFunction - Top level algorithm.
 ///
 bool SimplifyHalfPowrLibCalls::runOnFunction(Function &F) {
-  TD = &getAnalysis<TargetData>();
+  TD = getAnalysisIfAvailable<TargetData>();
   
   bool Changed = false;
   std::vector<Instruction *> HalfPowrs;