[PowerPC] Remove unused includes (NFC) (llvm#141449)

These are identified by misc-include-cleaner.  I've filtered out those
that break builds.  Also, I'm staying away from llvm-config.h,
config.h, and Compiler.h, which likely cause platform- or
compiler-specific build failures.

Author: kazutakahirata

llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.cpp

@@ -7,14 +7,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "PPCMCExpr.h"
-#include "PPCFixupKinds.h"
-#include "llvm/BinaryFormat/ELF.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCObjectStreamer.h"
-#include "llvm/MC/MCSymbolELF.h"
-#include "llvm/Support/Casting.h"
 
 using namespace llvm;
 

llvm/lib/Target/PowerPC/PPCCTRLoops.cpp

@@ -39,9 +39,7 @@
 #include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/Register.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
-#include "llvm/PassRegistry.h"
 #include "llvm/Support/ErrorHandling.h"
 #include <cassert>
 

llvm/lib/Target/PowerPC/PPCLoopInstrFormPrep.cpp

@@ -95,7 +95,6 @@
 #include "llvm/IR/IntrinsicsPowerPC.h"
 #include "llvm/IR/Type.h"
 #include "llvm/IR/Value.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/CommandLine.h"

llvm/lib/Target/PowerPC/PPCMIPeephole.cpp

@@ -42,7 +42,6 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachinePostDominators.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/DebugCounter.h"
 

llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp

@@ -24,7 +24,6 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/Config/llvm-config.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Support/Debug.h"
 
 using namespace llvm;

llvm/lib/Target/PowerPC/PPCTLSDynamicCall.cpp

@@ -27,7 +27,6 @@
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 

llvm/lib/Target/PowerPC/PPCTargetMachine.cpp

@@ -24,7 +24,6 @@
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/CodeGen/GlobalISel/IRTranslator.h"
 #include "llvm/CodeGen/GlobalISel/InstructionSelect.h"
-#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
 #include "llvm/CodeGen/GlobalISel/Legalizer.h"
 #include "llvm/CodeGen/GlobalISel/Localizer.h"
 #include "llvm/CodeGen/GlobalISel/RegBankSelect.h"

llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp

@@ -25,7 +25,6 @@
 #include "llvm/CodeGen/PseudoSourceValue.h"
 #include "llvm/CodeGen/ScheduleDAG.h"
 #include "llvm/CodeGen/SlotIndexes.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/MC/TargetRegistry.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"