Remove unneeded #includes. Use forward declarations instead.

llvm-svn: 176782

llvm/include/llvm/Analysis/TargetTransformInfo.h

@@ -22,15 +22,17 @@
 #ifndef LLVM_ANALYSIS_TARGETTRANSFORMINFO_H
 #define LLVM_ANALYSIS_TARGETTRANSFORMINFO_H
 
-#include "llvm/CodeGen/ValueTypes.h"
-#include "llvm/IR/GlobalValue.h"
 #include "llvm/IR/Intrinsics.h"
-#include "llvm/IR/Type.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/DataTypes.h"
 
 namespace llvm {
 
+class GlobalValue;
+class Type;
+class User;
+class Value;
+
 /// TargetTransformInfo - This pass provides access to the codegen
 /// interfaces that are needed for IR-level transformations.
 class TargetTransformInfo {