Remove some more unused headers from MachineFunction.h and friends.

Most of these headers are still included via transitive includes and
so won't likely show any problems or improvements in incremental
rebuild time.

Differential Revision: https://reviews.llvm.org/D60741

llvm-svn: 358468

llvm/include/llvm/CodeGen/MachineFunction.h

@@ -30,10 +30,6 @@
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineMemOperand.h"
-#include "llvm/IR/DebugLoc.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Metadata.h"
-#include "llvm/MC/MCSymbol.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/ArrayRecycler.h"
 #include "llvm/Support/AtomicOrdering.h"
@@ -51,6 +47,7 @@ namespace llvm {
 class BasicBlock;
 class BlockAddress;
 class DataLayout;
+class DebugLoc;
 class DIExpression;
 class DILocalVariable;
 class DILocation;
@@ -65,6 +62,7 @@ class MachineModuleInfo;
 class MachineRegisterInfo;
 class MCContext;
 class MCInstrDesc;
+class MCSymbol;
 class Pass;
 class PseudoSourceValueManager;
 class raw_ostream;

llvm/include/llvm/CodeGen/MachineMemOperand.h

@@ -18,8 +18,6 @@
 #include "llvm/ADT/BitmaskEnum.h"
 #include "llvm/ADT/PointerUnion.h"
 #include "llvm/CodeGen/PseudoSourceValue.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Metadata.h"
 #include "llvm/IR/Value.h" // PointerLikeTypeTraits<Value*>
 #include "llvm/Support/AtomicOrdering.h"
 #include "llvm/Support/DataTypes.h"

llvm/include/llvm/CodeGen/PseudoSourceValue.h

@@ -15,7 +15,6 @@
 
 #include "llvm/ADT/StringMap.h"
 #include "llvm/IR/GlobalValue.h"
-#include "llvm/IR/Value.h"
 #include "llvm/IR/ValueMap.h"
 #include <map>