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diff --git a/contrib/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp b/contrib/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
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+++ b/contrib/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
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+//===-- HexagonTargetMachine.cpp - Define TargetMachine for Hexagon -------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Implements the info about Hexagon target spec.
+//
+//===----------------------------------------------------------------------===//
+
+#include "HexagonTargetMachine.h"
+#include "Hexagon.h"
+#include "HexagonISelLowering.h"
+#include "HexagonMachineScheduler.h"
+#include "HexagonTargetObjectFile.h"
+#include "HexagonTargetTransformInfo.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Transforms/Scalar.h"
+
+using namespace llvm;
+
+static cl:: opt<bool> DisableHardwareLoops("disable-hexagon-hwloops",
+  cl::Hidden, cl::desc("Disable Hardware Loops for Hexagon target"));
+
+static cl::opt<bool> DisableHexagonCFGOpt("disable-hexagon-cfgopt",
+  cl::Hidden, cl::ZeroOrMore, cl::init(false),
+  cl::desc("Disable Hexagon CFG Optimization"));
+
+static cl::opt<bool> DisableStoreWidening("disable-store-widen",
+  cl::Hidden, cl::init(false), cl::desc("Disable store widening"));
+
+static cl::opt<bool> EnableExpandCondsets("hexagon-expand-condsets",
+  cl::init(true), cl::Hidden, cl::ZeroOrMore,
+  cl::desc("Early expansion of MUX"));
+
+static cl::opt<bool> EnableEarlyIf("hexagon-eif", cl::init(true), cl::Hidden,
+  cl::ZeroOrMore, cl::desc("Enable early if-conversion"));
+
+static cl::opt<bool> EnableGenInsert("hexagon-insert", cl::init(true),
+  cl::Hidden, cl::desc("Generate \"insert\" instructions"));
+
+static cl::opt<bool> EnableCommGEP("hexagon-commgep", cl::init(true),
+  cl::Hidden, cl::ZeroOrMore, cl::desc("Enable commoning of GEP instructions"));
+
+static cl::opt<bool> EnableGenExtract("hexagon-extract", cl::init(true),
+  cl::Hidden, cl::desc("Generate \"extract\" instructions"));
+
+static cl::opt<bool> EnableGenMux("hexagon-mux", cl::init(true), cl::Hidden,
+  cl::desc("Enable converting conditional transfers into MUX instructions"));
+
+static cl::opt<bool> EnableGenPred("hexagon-gen-pred", cl::init(true),
+  cl::Hidden, cl::desc("Enable conversion of arithmetic operations to "
+  "predicate instructions"));
+
+static cl::opt<bool> DisableHSDR("disable-hsdr", cl::init(false), cl::Hidden,
+  cl::desc("Disable splitting double registers"));
+
+static cl::opt<bool> EnableBitSimplify("hexagon-bit", cl::init(true),
+  cl::Hidden, cl::desc("Bit simplification"));
+
+static cl::opt<bool> EnableLoopResched("hexagon-loop-resched", cl::init(true),
+  cl::Hidden, cl::desc("Loop rescheduling"));
+
+/// HexagonTargetMachineModule - Note that this is used on hosts that
+/// cannot link in a library unless there are references into the
+/// library.  In particular, it seems that it is not possible to get
+/// things to work on Win32 without this.  Though it is unused, do not
+/// remove it.
+extern "C" int HexagonTargetMachineModule;
+int HexagonTargetMachineModule = 0;
+
+extern "C" void LLVMInitializeHexagonTarget() {
+  // Register the target.
+  RegisterTargetMachine<HexagonTargetMachine> X(TheHexagonTarget);
+}
+
+static ScheduleDAGInstrs *createVLIWMachineSched(MachineSchedContext *C) {
+  return new VLIWMachineScheduler(C, make_unique<ConvergingVLIWScheduler>());
+}
+
+static MachineSchedRegistry
+SchedCustomRegistry("hexagon", "Run Hexagon's custom scheduler",
+                    createVLIWMachineSched);
+
+namespace llvm {
+  FunctionPass *createHexagonBitSimplify();
+  FunctionPass *createHexagonCallFrameInformation();
+  FunctionPass *createHexagonCFGOptimizer();
+  FunctionPass *createHexagonCommonGEP();
+  FunctionPass *createHexagonCopyToCombine();
+  FunctionPass *createHexagonEarlyIfConversion();
+  FunctionPass *createHexagonExpandCondsets();
+  FunctionPass *createHexagonExpandPredSpillCode();
+  FunctionPass *createHexagonFixupHwLoops();
+  FunctionPass *createHexagonGenExtract();
+  FunctionPass *createHexagonGenInsert();
+  FunctionPass *createHexagonGenMux();
+  FunctionPass *createHexagonGenPredicate();
+  FunctionPass *createHexagonHardwareLoops();
+  FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM,
+                                     CodeGenOpt::Level OptLevel);
+  FunctionPass *createHexagonLoopRescheduling();
+  FunctionPass *createHexagonNewValueJump();
+  FunctionPass *createHexagonOptimizeSZextends();
+  FunctionPass *createHexagonPacketizer();
+  FunctionPass *createHexagonPeephole();
+  FunctionPass *createHexagonSplitConst32AndConst64();
+  FunctionPass *createHexagonSplitDoubleRegs();
+  FunctionPass *createHexagonStoreWidening();
+} // end namespace llvm;
+
+/// HexagonTargetMachine ctor - Create an ILP32 architecture model.
+///
+
+/// Hexagon_TODO: Do I need an aggregate alignment?
+///
+HexagonTargetMachine::HexagonTargetMachine(const Target &T, const Triple &TT,
+                                           StringRef CPU, StringRef FS,
+                                           const TargetOptions &Options,
+                                           Reloc::Model RM, CodeModel::Model CM,
+                                           CodeGenOpt::Level OL)
+    : LLVMTargetMachine(T, "e-m:e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-"
+                        "i1:8:8-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a:0-"
+                        "n16:32", TT, CPU, FS, Options, RM, CM, OL),
+      TLOF(make_unique<HexagonTargetObjectFile>()) {
+  initAsmInfo();
+}
+
+const HexagonSubtarget *
+HexagonTargetMachine::getSubtargetImpl(const Function &F) const {
+  AttributeSet FnAttrs = F.getAttributes();
+  Attribute CPUAttr =
+      FnAttrs.getAttribute(AttributeSet::FunctionIndex, "target-cpu");
+  Attribute FSAttr =
+      FnAttrs.getAttribute(AttributeSet::FunctionIndex, "target-features");
+
+  std::string CPU = !CPUAttr.hasAttribute(Attribute::None)
+                        ? CPUAttr.getValueAsString().str()
+                        : TargetCPU;
+  std::string FS = !FSAttr.hasAttribute(Attribute::None)
+                       ? FSAttr.getValueAsString().str()
+                       : TargetFS;
+
+  auto &I = SubtargetMap[CPU + FS];
+  if (!I) {
+    // This needs to be done before we create a new subtarget since any
+    // creation will depend on the TM and the code generation flags on the
+    // function that reside in TargetOptions.
+    resetTargetOptions(F);
+    I = llvm::make_unique<HexagonSubtarget>(TargetTriple, CPU, FS, *this);
+  }
+  return I.get();
+}
+
+TargetIRAnalysis HexagonTargetMachine::getTargetIRAnalysis() {
+  return TargetIRAnalysis([this](const Function &F) {
+    return TargetTransformInfo(HexagonTTIImpl(this, F));
+  });
+}
+
+
+HexagonTargetMachine::~HexagonTargetMachine() {}
+
+namespace {
+/// Hexagon Code Generator Pass Configuration Options.
+class HexagonPassConfig : public TargetPassConfig {
+public:
+  HexagonPassConfig(HexagonTargetMachine *TM, PassManagerBase &PM)
+    : TargetPassConfig(TM, PM) {
+    bool NoOpt = (TM->getOptLevel() == CodeGenOpt::None);
+    if (!NoOpt) {
+      if (EnableExpandCondsets) {
+        Pass *Exp = createHexagonExpandCondsets();
+        insertPass(&RegisterCoalescerID, IdentifyingPassPtr(Exp));
+      }
+    }
+  }
+
+  HexagonTargetMachine &getHexagonTargetMachine() const {
+    return getTM<HexagonTargetMachine>();
+  }
+
+  ScheduleDAGInstrs *
+  createMachineScheduler(MachineSchedContext *C) const override {
+    return createVLIWMachineSched(C);
+  }
+
+  void addIRPasses() override;
+  bool addInstSelector() override;
+  void addPreRegAlloc() override;
+  void addPostRegAlloc() override;
+  void addPreSched2() override;
+  void addPreEmitPass() override;
+};
+} // namespace
+
+TargetPassConfig *HexagonTargetMachine::createPassConfig(PassManagerBase &PM) {
+  return new HexagonPassConfig(this, PM);
+}
+
+void HexagonPassConfig::addIRPasses() {
+  TargetPassConfig::addIRPasses();
+  bool NoOpt = (getOptLevel() == CodeGenOpt::None);
+
+  addPass(createAtomicExpandPass(TM));
+  if (!NoOpt) {
+    if (EnableCommGEP)
+      addPass(createHexagonCommonGEP());
+    // Replace certain combinations of shifts and ands with extracts.
+    if (EnableGenExtract)
+      addPass(createHexagonGenExtract());
+  }
+}
+
+bool HexagonPassConfig::addInstSelector() {
+  HexagonTargetMachine &TM = getHexagonTargetMachine();
+  bool NoOpt = (getOptLevel() == CodeGenOpt::None);
+
+  if (!NoOpt)
+    addPass(createHexagonOptimizeSZextends());
+
+  addPass(createHexagonISelDag(TM, getOptLevel()));
+
+  if (!NoOpt) {
+    // Create logical operations on predicate registers.
+    if (EnableGenPred)
+      addPass(createHexagonGenPredicate(), false);
+    // Rotate loops to expose bit-simplification opportunities.
+    if (EnableLoopResched)
+      addPass(createHexagonLoopRescheduling(), false);
+    // Split double registers.
+    if (!DisableHSDR)
+      addPass(createHexagonSplitDoubleRegs());
+    // Bit simplification.
+    if (EnableBitSimplify)
+      addPass(createHexagonBitSimplify(), false);
+    addPass(createHexagonPeephole());
+    printAndVerify("After hexagon peephole pass");
+    if (EnableGenInsert)
+      addPass(createHexagonGenInsert(), false);
+    if (EnableEarlyIf)
+      addPass(createHexagonEarlyIfConversion(), false);
+  }
+
+  return false;
+}
+
+void HexagonPassConfig::addPreRegAlloc() {
+  if (getOptLevel() != CodeGenOpt::None) {
+    if (!DisableStoreWidening)
+      addPass(createHexagonStoreWidening(), false);
+    if (!DisableHardwareLoops)
+      addPass(createHexagonHardwareLoops(), false);
+  }
+}
+
+void HexagonPassConfig::addPostRegAlloc() {
+  if (getOptLevel() != CodeGenOpt::None)
+    if (!DisableHexagonCFGOpt)
+      addPass(createHexagonCFGOptimizer(), false);
+}
+
+void HexagonPassConfig::addPreSched2() {
+  addPass(createHexagonCopyToCombine(), false);
+  if (getOptLevel() != CodeGenOpt::None)
+    addPass(&IfConverterID, false);
+  addPass(createHexagonSplitConst32AndConst64());
+}
+
+void HexagonPassConfig::addPreEmitPass() {
+  bool NoOpt = (getOptLevel() == CodeGenOpt::None);
+
+  if (!NoOpt)
+    addPass(createHexagonNewValueJump(), false);
+
+  // Expand Spill code for predicate registers.
+  addPass(createHexagonExpandPredSpillCode(), false);
+
+  // Create Packets.
+  if (!NoOpt) {
+    if (!DisableHardwareLoops)
+      addPass(createHexagonFixupHwLoops(), false);
+    // Generate MUX from pairs of conditional transfers.
+    if (EnableGenMux)
+      addPass(createHexagonGenMux(), false);
+
+    addPass(createHexagonPacketizer(), false);
+  }
+
+  // Add CFI instructions if necessary.
+  addPass(createHexagonCallFrameInformation(), false);
+}