Prune some includes and forward declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153414 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Target/Mangler.h

@@ -17,9 +17,7 @@
 #include "llvm/ADT/DenseMap.h"
 
 namespace llvm {
-class StringRef;
 class Twine;
-class Value;
 class GlobalValue;
 template <typename T> class SmallVectorImpl;
 class MCContext;

include/llvm/Target/TargetELFWriterInfo.h

@@ -15,9 +15,6 @@
 #define LLVM_TARGET_TARGETELFWRITERINFO_H
 
 namespace llvm {
-  class Function;
-  class TargetData;
-  class TargetMachine;
 
   //===--------------------------------------------------------------------===//
   //                          TargetELFWriterInfo

include/llvm/Target/TargetFrameLowering.h

@@ -15,8 +15,6 @@
 #define LLVM_TARGET_TARGETFRAMELOWERING_H
 
 #include "llvm/CodeGen/MachineBasicBlock.h"
-#include "llvm/MC/MCDwarf.h"
-#include "llvm/ADT/ArrayRef.h"
 
 #include <utility>
 #include <vector>
@@ -24,8 +22,6 @@
 namespace llvm {
   class CalleeSavedInfo;
   class MachineFunction;
-  class MachineBasicBlock;
-  class MachineMove;
   class RegScavenger;
 
 /// Information about stack frame layout on the target.  It holds the direction

include/llvm/Target/TargetJITInfo.h

@@ -17,9 +17,9 @@
 #ifndef LLVM_TARGET_TARGETJITINFO_H
 #define LLVM_TARGET_TARGETJITINFO_H
 
-#include <cassert>
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/DataTypes.h"
+#include <cassert>
 
 namespace llvm {
   class Function;

include/llvm/Target/TargetLowering.h

@@ -25,7 +25,6 @@
 #include "llvm/CallingConv.h"
 #include "llvm/InlineAsm.h"
 #include "llvm/Attributes.h"
-#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/CodeGen/SelectionDAGNodes.h"
 #include "llvm/CodeGen/RuntimeLibcalls.h"
 #include "llvm/Support/DebugLoc.h"

include/llvm/Target/TargetLoweringObjectFile.h

@@ -19,19 +19,15 @@
 #include "llvm/MC/MCObjectFileInfo.h"
 #include "llvm/MC/SectionKind.h"
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/StringRef.h"
 
 namespace llvm {
   class MachineModuleInfo;
   class Mangler;
-  class MCAsmInfo;
   class MCContext;
   class MCExpr;
   class MCSection;
-  class MCSectionMachO;
   class MCSymbol;
   class MCStreamer;
-  class NamedMDNode;
   class GlobalValue;
   class TargetMachine;
   

include/llvm/Target/TargetMachine.h

@@ -14,8 +14,8 @@
 #ifndef LLVM_TARGET_TARGETMACHINE_H
 #define LLVM_TARGET_TARGETMACHINE_H
 
+#include "llvm/Support/CodeGen.h"
 #include "llvm/Target/TargetOptions.h"
-#include "llvm/MC/MCCodeGenInfo.h"
 #include "llvm/ADT/StringRef.h"
 #include <cassert>
 #include <string>
@@ -27,8 +27,6 @@ class JITCodeEmitter;
 class MCAsmInfo;
 class MCCodeGenInfo;
 class MCContext;
-class Pass;
-class PassManager;
 class PassManagerBase;
 class Target;
 class TargetData;

include/llvm/Target/TargetSubtargetInfo.h

@@ -15,7 +15,7 @@
 #define LLVM_TARGET_TARGETSUBTARGETINFO_H
 
 #include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/Target/TargetMachine.h"
+#include "llvm/Support/CodeGen.h"
 
 namespace llvm {