Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 2847 deletions

diff --git a/gnu/llvm/unittests/IR/MetadataTest.cpp b/gnu/llvm/unittests/IR/MetadataTest.cpp
deleted file mode 100644
index 883a5823100..00000000000
--- a/gnu/llvm/unittests/IR/MetadataTest.cpp
+++ /dev/null
@@ -1,2847 +0,0 @@
-//===- unittests/IR/MetadataTest.cpp - Metadata unit tests ----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/IR/Metadata.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/DebugInfo.h"
-#include "llvm/IR/DebugInfoMetadata.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/ModuleSlotTracker.h"
-#include "llvm/IR/Type.h"
-#include "llvm/IR/Verifier.h"
-#include "llvm/Support/raw_ostream.h"
-#include "gtest/gtest.h"
-using namespace llvm;
-
-namespace {
-
-TEST(ContextAndReplaceableUsesTest, FromContext) {
-  LLVMContext Context;
-  ContextAndReplaceableUses CRU(Context);
-  EXPECT_EQ(&Context, &CRU.getContext());
-  EXPECT_FALSE(CRU.hasReplaceableUses());
-  EXPECT_FALSE(CRU.getReplaceableUses());
-}
-
-TEST(ContextAndReplaceableUsesTest, FromReplaceableUses) {
-  LLVMContext Context;
-  ContextAndReplaceableUses CRU(make_unique<ReplaceableMetadataImpl>(Context));
-  EXPECT_EQ(&Context, &CRU.getContext());
-  EXPECT_TRUE(CRU.hasReplaceableUses());
-  EXPECT_TRUE(CRU.getReplaceableUses());
-}
-
-TEST(ContextAndReplaceableUsesTest, makeReplaceable) {
-  LLVMContext Context;
-  ContextAndReplaceableUses CRU(Context);
-  CRU.makeReplaceable(make_unique<ReplaceableMetadataImpl>(Context));
-  EXPECT_EQ(&Context, &CRU.getContext());
-  EXPECT_TRUE(CRU.hasReplaceableUses());
-  EXPECT_TRUE(CRU.getReplaceableUses());
-}
-
-TEST(ContextAndReplaceableUsesTest, takeReplaceableUses) {
-  LLVMContext Context;
-  auto ReplaceableUses = make_unique<ReplaceableMetadataImpl>(Context);
-  auto *Ptr = ReplaceableUses.get();
-  ContextAndReplaceableUses CRU(std::move(ReplaceableUses));
-  ReplaceableUses = CRU.takeReplaceableUses();
-  EXPECT_EQ(&Context, &CRU.getContext());
-  EXPECT_FALSE(CRU.hasReplaceableUses());
-  EXPECT_FALSE(CRU.getReplaceableUses());
-  EXPECT_EQ(Ptr, ReplaceableUses.get());
-}
-
-class MetadataTest : public testing::Test {
-public:
-  MetadataTest() : M("test", Context), Counter(0) {}
-
-protected:
-  LLVMContext Context;
-  Module M;
-  int Counter;
-
-  MDNode *getNode() { return MDNode::get(Context, None); }
-  MDNode *getNode(Metadata *MD) { return MDNode::get(Context, MD); }
-  MDNode *getNode(Metadata *MD1, Metadata *MD2) {
-    Metadata *MDs[] = {MD1, MD2};
-    return MDNode::get(Context, MDs);
-  }
-
-  MDTuple *getTuple() { return MDTuple::getDistinct(Context, None); }
-  DISubroutineType *getSubroutineType() {
-    return DISubroutineType::getDistinct(Context, DINode::FlagZero, 0,
-                                         getNode(nullptr));
-  }
-  DISubprogram *getSubprogram() {
-    return DISubprogram::getDistinct(
-        Context, nullptr, "", "", nullptr, 0, nullptr, 0, nullptr, 0, 0,
-        DINode::FlagZero, DISubprogram::SPFlagZero, nullptr);
-  }
-  DIFile *getFile() {
-    return DIFile::getDistinct(Context, "file.c", "/path/to/dir");
-  }
-  DICompileUnit *getUnit() {
-    return DICompileUnit::getDistinct(
-        Context, 1, getFile(), "clang", false, "-g", 2, "",
-        DICompileUnit::FullDebug, getTuple(), getTuple(), getTuple(),
-        getTuple(), getTuple(), 0, true, false,
-        DICompileUnit::DebugNameTableKind::Default, false);
-  }
-  DIType *getBasicType(StringRef Name) {
-    return DIBasicType::get(Context, dwarf::DW_TAG_unspecified_type, Name);
-  }
-  DIType *getDerivedType() {
-    return DIDerivedType::getDistinct(
-        Context, dwarf::DW_TAG_pointer_type, "", nullptr, 0, nullptr,
-        getBasicType("basictype"), 1, 2, 0, None, DINode::FlagZero);
-  }
-  Constant *getConstant() {
-    return ConstantInt::get(Type::getInt32Ty(Context), Counter++);
-  }
-  ConstantAsMetadata *getConstantAsMetadata() {
-    return ConstantAsMetadata::get(getConstant());
-  }
-  DIType *getCompositeType() {
-    return DICompositeType::getDistinct(
-        Context, dwarf::DW_TAG_structure_type, "", nullptr, 0, nullptr, nullptr,
-        32, 32, 0, DINode::FlagZero, nullptr, 0, nullptr, nullptr, "");
-  }
-  Function *getFunction(StringRef Name) {
-    return cast<Function>(M.getOrInsertFunction(
-        Name, FunctionType::get(Type::getVoidTy(Context), None, false)));
-  }
-};
-typedef MetadataTest MDStringTest;
-
-// Test that construction of MDString with different value produces different
-// MDString objects, even with the same string pointer and nulls in the string.
-TEST_F(MDStringTest, CreateDifferent) {
-  char x[3] = { 'f', 0, 'A' };
-  MDString *s1 = MDString::get(Context, StringRef(&x[0], 3));
-  x[2] = 'B';
-  MDString *s2 = MDString::get(Context, StringRef(&x[0], 3));
-  EXPECT_NE(s1, s2);
-}
-
-// Test that creation of MDStrings with the same string contents produces the
-// same MDString object, even with different pointers.
-TEST_F(MDStringTest, CreateSame) {
-  char x[4] = { 'a', 'b', 'c', 'X' };
-  char y[4] = { 'a', 'b', 'c', 'Y' };
-
-  MDString *s1 = MDString::get(Context, StringRef(&x[0], 3));
-  MDString *s2 = MDString::get(Context, StringRef(&y[0], 3));
-  EXPECT_EQ(s1, s2);
-}
-
-// Test that MDString prints out the string we fed it.
-TEST_F(MDStringTest, PrintingSimple) {
-  char str[14] = "testing 1 2 3";
-  MDString *s = MDString::get(Context, StringRef(&str[0], 13));
-  strncpy(str, "aaaaaaaaaaaaa", 14);
-
-  std::string Str;
-  raw_string_ostream oss(Str);
-  s->print(oss);
-  EXPECT_STREQ("!\"testing 1 2 3\"", oss.str().c_str());
-}
-
-// Test printing of MDString with non-printable characters.
-TEST_F(MDStringTest, PrintingComplex) {
-  char str[5] = {0, '\n', '"', '\\', (char)-1};
-  MDString *s = MDString::get(Context, StringRef(str+0, 5));
-  std::string Str;
-  raw_string_ostream oss(Str);
-  s->print(oss);
-  EXPECT_STREQ("!\"\\00\\0A\\22\\5C\\FF\"", oss.str().c_str());
-}
-
-typedef MetadataTest MDNodeTest;
-
-// Test the two constructors, and containing other Constants.
-TEST_F(MDNodeTest, Simple) {
-  char x[3] = { 'a', 'b', 'c' };
-  char y[3] = { '1', '2', '3' };
-
-  MDString *s1 = MDString::get(Context, StringRef(&x[0], 3));
-  MDString *s2 = MDString::get(Context, StringRef(&y[0], 3));
-  ConstantAsMetadata *CI =
-      ConstantAsMetadata::get(ConstantInt::get(Context, APInt(8, 0)));
-
-  std::vector<Metadata *> V;
-  V.push_back(s1);
-  V.push_back(CI);
-  V.push_back(s2);
-
-  MDNode *n1 = MDNode::get(Context, V);
-  Metadata *const c1 = n1;
-  MDNode *n2 = MDNode::get(Context, c1);
-  Metadata *const c2 = n2;
-  MDNode *n3 = MDNode::get(Context, V);
-  MDNode *n4 = MDNode::getIfExists(Context, V);
-  MDNode *n5 = MDNode::getIfExists(Context, c1);
-  MDNode *n6 = MDNode::getIfExists(Context, c2);
-  EXPECT_NE(n1, n2);
-  EXPECT_EQ(n1, n3);
-  EXPECT_EQ(n4, n1);
-  EXPECT_EQ(n5, n2);
-  EXPECT_EQ(n6, (Metadata *)nullptr);
-
-  EXPECT_EQ(3u, n1->getNumOperands());
-  EXPECT_EQ(s1, n1->getOperand(0));
-  EXPECT_EQ(CI, n1->getOperand(1));
-  EXPECT_EQ(s2, n1->getOperand(2));
-
-  EXPECT_EQ(1u, n2->getNumOperands());
-  EXPECT_EQ(n1, n2->getOperand(0));
-}
-
-TEST_F(MDNodeTest, Delete) {
-  Constant *C = ConstantInt::get(Type::getInt32Ty(Context), 1);
-  Instruction *I = new BitCastInst(C, Type::getInt32Ty(Context));
-
-  Metadata *const V = LocalAsMetadata::get(I);
-  MDNode *n = MDNode::get(Context, V);
-  TrackingMDRef wvh(n);
-
-  EXPECT_EQ(n, wvh);
-
-  I->deleteValue();
-}
-
-TEST_F(MDNodeTest, SelfReference) {
-  // !0 = !{!0}
-  // !1 = !{!0}
-  {
-    auto Temp = MDNode::getTemporary(Context, None);
-    Metadata *Args[] = {Temp.get()};
-    MDNode *Self = MDNode::get(Context, Args);
-    Self->replaceOperandWith(0, Self);
-    ASSERT_EQ(Self, Self->getOperand(0));
-
-    // Self-references should be distinct, so MDNode::get() should grab a
-    // uniqued node that references Self, not Self.
-    Args[0] = Self;
-    MDNode *Ref1 = MDNode::get(Context, Args);
-    MDNode *Ref2 = MDNode::get(Context, Args);
-    EXPECT_NE(Self, Ref1);
-    EXPECT_EQ(Ref1, Ref2);
-  }
-
-  // !0 = !{!0, !{}}
-  // !1 = !{!0, !{}}
-  {
-    auto Temp = MDNode::getTemporary(Context, None);
-    Metadata *Args[] = {Temp.get(), MDNode::get(Context, None)};
-    MDNode *Self = MDNode::get(Context, Args);
-    Self->replaceOperandWith(0, Self);
-    ASSERT_EQ(Self, Self->getOperand(0));
-
-    // Self-references should be distinct, so MDNode::get() should grab a
-    // uniqued node that references Self, not Self itself.
-    Args[0] = Self;
-    MDNode *Ref1 = MDNode::get(Context, Args);
-    MDNode *Ref2 = MDNode::get(Context, Args);
-    EXPECT_NE(Self, Ref1);
-    EXPECT_EQ(Ref1, Ref2);
-  }
-}
-
-TEST_F(MDNodeTest, Print) {
-  Constant *C = ConstantInt::get(Type::getInt32Ty(Context), 7);
-  MDString *S = MDString::get(Context, "foo");
-  MDNode *N0 = getNode();
-  MDNode *N1 = getNode(N0);
-  MDNode *N2 = getNode(N0, N1);
-
-  Metadata *Args[] = {ConstantAsMetadata::get(C), S, nullptr, N0, N1, N2};
-  MDNode *N = MDNode::get(Context, Args);
-
-  std::string Expected;
-  {
-    raw_string_ostream OS(Expected);
-    OS << "<" << (void *)N << "> = !{";
-    C->printAsOperand(OS);
-    OS << ", ";
-    S->printAsOperand(OS);
-    OS << ", null";
-    MDNode *Nodes[] = {N0, N1, N2};
-    for (auto *Node : Nodes)
-      OS << ", <" << (void *)Node << ">";
-    OS << "}";
-  }
-
-  std::string Actual;
-  {
-    raw_string_ostream OS(Actual);
-    N->print(OS);
-  }
-
-  EXPECT_EQ(Expected, Actual);
-}
-
-#define EXPECT_PRINTER_EQ(EXPECTED, PRINT)                                     \
-  do {                                                                         \
-    std::string Actual_;                                                       \
-    raw_string_ostream OS(Actual_);                                            \
-    PRINT;                                                                     \
-    OS.flush();                                                                \
-    std::string Expected_(EXPECTED);                                           \
-    EXPECT_EQ(Expected_, Actual_);                                             \
-  } while (false)
-
-TEST_F(MDNodeTest, PrintTemporary) {
-  MDNode *Arg = getNode();
-  TempMDNode Temp = MDNode::getTemporary(Context, Arg);
-  MDNode *N = getNode(Temp.get());
-  Module M("test", Context);
-  NamedMDNode *NMD = M.getOrInsertNamedMetadata("named");
-  NMD->addOperand(N);
-
-  EXPECT_PRINTER_EQ("!0 = !{!1}", N->print(OS, &M));
-  EXPECT_PRINTER_EQ("!1 = <temporary!> !{!2}", Temp->print(OS, &M));
-  EXPECT_PRINTER_EQ("!2 = !{}", Arg->print(OS, &M));
-
-  // Cleanup.
-  Temp->replaceAllUsesWith(Arg);
-}
-
-TEST_F(MDNodeTest, PrintFromModule) {
-  Constant *C = ConstantInt::get(Type::getInt32Ty(Context), 7);
-  MDString *S = MDString::get(Context, "foo");
-  MDNode *N0 = getNode();
-  MDNode *N1 = getNode(N0);
-  MDNode *N2 = getNode(N0, N1);
-
-  Metadata *Args[] = {ConstantAsMetadata::get(C), S, nullptr, N0, N1, N2};
-  MDNode *N = MDNode::get(Context, Args);
-  Module M("test", Context);
-  NamedMDNode *NMD = M.getOrInsertNamedMetadata("named");
-  NMD->addOperand(N);
-
-  std::string Expected;
-  {
-    raw_string_ostream OS(Expected);
-    OS << "!0 = !{";
-    C->printAsOperand(OS);
-    OS << ", ";
-    S->printAsOperand(OS);
-    OS << ", null, !1, !2, !3}";
-  }
-
-  EXPECT_PRINTER_EQ(Expected, N->print(OS, &M));
-}
-
-TEST_F(MDNodeTest, PrintFromFunction) {
-  Module M("test", Context);
-  auto *FTy = FunctionType::get(Type::getVoidTy(Context), false);
-  auto *F0 = Function::Create(FTy, GlobalValue::ExternalLinkage, "F0", &M);
-  auto *F1 = Function::Create(FTy, GlobalValue::ExternalLinkage, "F1", &M);
-  auto *BB0 = BasicBlock::Create(Context, "entry", F0);
-  auto *BB1 = BasicBlock::Create(Context, "entry", F1);
-  auto *R0 = ReturnInst::Create(Context, BB0);
-  auto *R1 = ReturnInst::Create(Context, BB1);
-  auto *N0 = MDNode::getDistinct(Context, None);
-  auto *N1 = MDNode::getDistinct(Context, None);
-  R0->setMetadata("md", N0);
-  R1->setMetadata("md", N1);
-
-  EXPECT_PRINTER_EQ("!0 = distinct !{}", N0->print(OS, &M));
-  EXPECT_PRINTER_EQ("!1 = distinct !{}", N1->print(OS, &M));
-
-  ModuleSlotTracker MST(&M);
-  EXPECT_PRINTER_EQ("!0 = distinct !{}", N0->print(OS, MST));
-  EXPECT_PRINTER_EQ("!1 = distinct !{}", N1->print(OS, MST));
-}
-
-TEST_F(MDNodeTest, PrintFromMetadataAsValue) {
-  Module M("test", Context);
-
-  auto *Intrinsic =
-      Function::Create(FunctionType::get(Type::getVoidTy(Context),
-                                         Type::getMetadataTy(Context), false),
-                       GlobalValue::ExternalLinkage, "llvm.intrinsic", &M);
-
-  auto *FTy = FunctionType::get(Type::getVoidTy(Context), false);
-  auto *F0 = Function::Create(FTy, GlobalValue::ExternalLinkage, "F0", &M);
-  auto *F1 = Function::Create(FTy, GlobalValue::ExternalLinkage, "F1", &M);
-  auto *BB0 = BasicBlock::Create(Context, "entry", F0);
-  auto *BB1 = BasicBlock::Create(Context, "entry", F1);
-  auto *N0 = MDNode::getDistinct(Context, None);
-  auto *N1 = MDNode::getDistinct(Context, None);
-  auto *MAV0 = MetadataAsValue::get(Context, N0);
-  auto *MAV1 = MetadataAsValue::get(Context, N1);
-  CallInst::Create(Intrinsic, MAV0, "", BB0);
-  CallInst::Create(Intrinsic, MAV1, "", BB1);
-
-  EXPECT_PRINTER_EQ("!0 = distinct !{}", MAV0->print(OS));
-  EXPECT_PRINTER_EQ("!1 = distinct !{}", MAV1->print(OS));
-  EXPECT_PRINTER_EQ("!0", MAV0->printAsOperand(OS, false));
-  EXPECT_PRINTER_EQ("!1", MAV1->printAsOperand(OS, false));
-  EXPECT_PRINTER_EQ("metadata !0", MAV0->printAsOperand(OS, true));
-  EXPECT_PRINTER_EQ("metadata !1", MAV1->printAsOperand(OS, true));
-
-  ModuleSlotTracker MST(&M);
-  EXPECT_PRINTER_EQ("!0 = distinct !{}", MAV0->print(OS, MST));
-  EXPECT_PRINTER_EQ("!1 = distinct !{}", MAV1->print(OS, MST));
-  EXPECT_PRINTER_EQ("!0", MAV0->printAsOperand(OS, false, MST));
-  EXPECT_PRINTER_EQ("!1", MAV1->printAsOperand(OS, false, MST));
-  EXPECT_PRINTER_EQ("metadata !0", MAV0->printAsOperand(OS, true, MST));
-  EXPECT_PRINTER_EQ("metadata !1", MAV1->printAsOperand(OS, true, MST));
-}
-
-TEST_F(MDNodeTest, PrintWithDroppedCallOperand) {
-  Module M("test", Context);
-
-  auto *FTy = FunctionType::get(Type::getVoidTy(Context), false);
-  auto *F0 = Function::Create(FTy, GlobalValue::ExternalLinkage, "F0", &M);
-  auto *F1 = Function::Create(FTy, GlobalValue::ExternalLinkage, "F1", &M);
-  auto *BB0 = BasicBlock::Create(Context, "entry", F0);
-
-  CallInst *CI0 = CallInst::Create(F1, "", BB0);
-  CI0->dropAllReferences();
-
-  auto *R0 = ReturnInst::Create(Context, BB0);
-  auto *N0 = MDNode::getDistinct(Context, None);
-  R0->setMetadata("md", N0);
-
-  // Printing the metadata node would previously result in a failed assertion
-  // due to the call instruction's dropped function operand.
-  ModuleSlotTracker MST(&M);
-  EXPECT_PRINTER_EQ("!0 = distinct !{}", N0->print(OS, MST));
-}
-#undef EXPECT_PRINTER_EQ
-
-TEST_F(MDNodeTest, NullOperand) {
-  // metadata !{}
-  MDNode *Empty = MDNode::get(Context, None);
-
-  // metadata !{metadata !{}}
-  Metadata *Ops[] = {Empty};
-  MDNode *N = MDNode::get(Context, Ops);
-  ASSERT_EQ(Empty, N->getOperand(0));
-
-  // metadata !{metadata !{}} => metadata !{null}
-  N->replaceOperandWith(0, nullptr);
-  ASSERT_EQ(nullptr, N->getOperand(0));
-
-  // metadata !{null}
-  Ops[0] = nullptr;
-  MDNode *NullOp = MDNode::get(Context, Ops);
-  ASSERT_EQ(nullptr, NullOp->getOperand(0));
-  EXPECT_EQ(N, NullOp);
-}
-
-TEST_F(MDNodeTest, DistinctOnUniquingCollision) {
-  // !{}
-  MDNode *Empty = MDNode::get(Context, None);
-  ASSERT_TRUE(Empty->isResolved());
-  EXPECT_FALSE(Empty->isDistinct());
-
-  // !{!{}}
-  Metadata *Wrapped1Ops[] = {Empty};
-  MDNode *Wrapped1 = MDNode::get(Context, Wrapped1Ops);
-  ASSERT_EQ(Empty, Wrapped1->getOperand(0));
-  ASSERT_TRUE(Wrapped1->isResolved());
-  EXPECT_FALSE(Wrapped1->isDistinct());
-
-  // !{!{!{}}}
-  Metadata *Wrapped2Ops[] = {Wrapped1};
-  MDNode *Wrapped2 = MDNode::get(Context, Wrapped2Ops);
-  ASSERT_EQ(Wrapped1, Wrapped2->getOperand(0));
-  ASSERT_TRUE(Wrapped2->isResolved());
-  EXPECT_FALSE(Wrapped2->isDistinct());
-
-  // !{!{!{}}} => !{!{}}
-  Wrapped2->replaceOperandWith(0, Empty);
-  ASSERT_EQ(Empty, Wrapped2->getOperand(0));
-  EXPECT_TRUE(Wrapped2->isDistinct());
-  EXPECT_FALSE(Wrapped1->isDistinct());
-}
-
-TEST_F(MDNodeTest, UniquedOnDeletedOperand) {
-  // temp !{}
-  TempMDTuple T = MDTuple::getTemporary(Context, None);
-
-  // !{temp !{}}
-  Metadata *Ops[] = {T.get()};
-  MDTuple *N = MDTuple::get(Context, Ops);
-
-  // !{temp !{}} => !{null}
-  T.reset();
-  ASSERT_TRUE(N->isUniqued());
-  Metadata *NullOps[] = {nullptr};
-  ASSERT_EQ(N, MDTuple::get(Context, NullOps));
-}
-
-TEST_F(MDNodeTest, DistinctOnDeletedValueOperand) {
-  // i1* @GV
-  Type *Ty = Type::getInt1PtrTy(Context);
-  std::unique_ptr<GlobalVariable> GV(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  ConstantAsMetadata *Op = ConstantAsMetadata::get(GV.get());
-
-  // !{i1* @GV}
-  Metadata *Ops[] = {Op};
-  MDTuple *N = MDTuple::get(Context, Ops);
-
-  // !{i1* @GV} => !{null}
-  GV.reset();
-  ASSERT_TRUE(N->isDistinct());
-  ASSERT_EQ(nullptr, N->getOperand(0));
-  Metadata *NullOps[] = {nullptr};
-  ASSERT_NE(N, MDTuple::get(Context, NullOps));
-}
-
-TEST_F(MDNodeTest, getDistinct) {
-  // !{}
-  MDNode *Empty = MDNode::get(Context, None);
-  ASSERT_TRUE(Empty->isResolved());
-  ASSERT_FALSE(Empty->isDistinct());
-  ASSERT_EQ(Empty, MDNode::get(Context, None));
-
-  // distinct !{}
-  MDNode *Distinct1 = MDNode::getDistinct(Context, None);
-  MDNode *Distinct2 = MDNode::getDistinct(Context, None);
-  EXPECT_TRUE(Distinct1->isResolved());
-  EXPECT_TRUE(Distinct2->isDistinct());
-  EXPECT_NE(Empty, Distinct1);
-  EXPECT_NE(Empty, Distinct2);
-  EXPECT_NE(Distinct1, Distinct2);
-
-  // !{}
-  ASSERT_EQ(Empty, MDNode::get(Context, None));
-}
-
-TEST_F(MDNodeTest, isUniqued) {
-  MDNode *U = MDTuple::get(Context, None);
-  MDNode *D = MDTuple::getDistinct(Context, None);
-  auto T = MDTuple::getTemporary(Context, None);
-  EXPECT_TRUE(U->isUniqued());
-  EXPECT_FALSE(D->isUniqued());
-  EXPECT_FALSE(T->isUniqued());
-}
-
-TEST_F(MDNodeTest, isDistinct) {
-  MDNode *U = MDTuple::get(Context, None);
-  MDNode *D = MDTuple::getDistinct(Context, None);
-  auto T = MDTuple::getTemporary(Context, None);
-  EXPECT_FALSE(U->isDistinct());
-  EXPECT_TRUE(D->isDistinct());
-  EXPECT_FALSE(T->isDistinct());
-}
-
-TEST_F(MDNodeTest, isTemporary) {
-  MDNode *U = MDTuple::get(Context, None);
-  MDNode *D = MDTuple::getDistinct(Context, None);
-  auto T = MDTuple::getTemporary(Context, None);
-  EXPECT_FALSE(U->isTemporary());
-  EXPECT_FALSE(D->isTemporary());
-  EXPECT_TRUE(T->isTemporary());
-}
-
-TEST_F(MDNodeTest, getDistinctWithUnresolvedOperands) {
-  // temporary !{}
-  auto Temp = MDTuple::getTemporary(Context, None);
-  ASSERT_FALSE(Temp->isResolved());
-
-  // distinct !{temporary !{}}
-  Metadata *Ops[] = {Temp.get()};
-  MDNode *Distinct = MDNode::getDistinct(Context, Ops);
-  EXPECT_TRUE(Distinct->isResolved());
-  EXPECT_EQ(Temp.get(), Distinct->getOperand(0));
-
-  // temporary !{} => !{}
-  MDNode *Empty = MDNode::get(Context, None);
-  Temp->replaceAllUsesWith(Empty);
-  EXPECT_EQ(Empty, Distinct->getOperand(0));
-}
-
-TEST_F(MDNodeTest, handleChangedOperandRecursion) {
-  // !0 = !{}
-  MDNode *N0 = MDNode::get(Context, None);
-
-  // !1 = !{!3, null}
-  auto Temp3 = MDTuple::getTemporary(Context, None);
-  Metadata *Ops1[] = {Temp3.get(), nullptr};
-  MDNode *N1 = MDNode::get(Context, Ops1);
-
-  // !2 = !{!3, !0}
-  Metadata *Ops2[] = {Temp3.get(), N0};
-  MDNode *N2 = MDNode::get(Context, Ops2);
-
-  // !3 = !{!2}
-  Metadata *Ops3[] = {N2};
-  MDNode *N3 = MDNode::get(Context, Ops3);
-  Temp3->replaceAllUsesWith(N3);
-
-  // !4 = !{!1}
-  Metadata *Ops4[] = {N1};
-  MDNode *N4 = MDNode::get(Context, Ops4);
-
-  // Confirm that the cycle prevented RAUW from getting dropped.
-  EXPECT_TRUE(N0->isResolved());
-  EXPECT_FALSE(N1->isResolved());
-  EXPECT_FALSE(N2->isResolved());
-  EXPECT_FALSE(N3->isResolved());
-  EXPECT_FALSE(N4->isResolved());
-
-  // Create a couple of distinct nodes to observe what's going on.
-  //
-  // !5 = distinct !{!2}
-  // !6 = distinct !{!3}
-  Metadata *Ops5[] = {N2};
-  MDNode *N5 = MDNode::getDistinct(Context, Ops5);
-  Metadata *Ops6[] = {N3};
-  MDNode *N6 = MDNode::getDistinct(Context, Ops6);
-
-  // Mutate !2 to look like !1, causing a uniquing collision (and an RAUW).
-  // This will ripple up, with !3 colliding with !4, and RAUWing.  Since !2
-  // references !3, this can cause a re-entry of handleChangedOperand() when !3
-  // is not ready for it.
-  //
-  // !2->replaceOperandWith(1, nullptr)
-  // !2: !{!3, !0} => !{!3, null}
-  // !2->replaceAllUsesWith(!1)
-  // !3: !{!2] => !{!1}
-  // !3->replaceAllUsesWith(!4)
-  N2->replaceOperandWith(1, nullptr);
-
-  // If all has gone well, N2 and N3 will have been RAUW'ed and deleted from
-  // under us.  Just check that the other nodes are sane.
-  //
-  // !1 = !{!4, null}
-  // !4 = !{!1}
-  // !5 = distinct !{!1}
-  // !6 = distinct !{!4}
-  EXPECT_EQ(N4, N1->getOperand(0));
-  EXPECT_EQ(N1, N4->getOperand(0));
-  EXPECT_EQ(N1, N5->getOperand(0));
-  EXPECT_EQ(N4, N6->getOperand(0));
-}
-
-TEST_F(MDNodeTest, replaceResolvedOperand) {
-  // Check code for replacing one resolved operand with another.  If doing this
-  // directly (via replaceOperandWith()) becomes illegal, change the operand to
-  // a global value that gets RAUW'ed.
-  //
-  // Use a temporary node to keep N from being resolved.
-  auto Temp = MDTuple::getTemporary(Context, None);
-  Metadata *Ops[] = {nullptr, Temp.get()};
-
-  MDNode *Empty = MDTuple::get(Context, ArrayRef<Metadata *>());
-  MDNode *N = MDTuple::get(Context, Ops);
-  EXPECT_EQ(nullptr, N->getOperand(0));
-  ASSERT_FALSE(N->isResolved());
-
-  // Check code for replacing resolved nodes.
-  N->replaceOperandWith(0, Empty);
-  EXPECT_EQ(Empty, N->getOperand(0));
-
-  // Check code for adding another unresolved operand.
-  N->replaceOperandWith(0, Temp.get());
-  EXPECT_EQ(Temp.get(), N->getOperand(0));
-
-  // Remove the references to Temp; required for teardown.
-  Temp->replaceAllUsesWith(nullptr);
-}
-
-TEST_F(MDNodeTest, replaceWithUniqued) {
-  auto *Empty = MDTuple::get(Context, None);
-  MDTuple *FirstUniqued;
-  {
-    Metadata *Ops[] = {Empty};
-    auto Temp = MDTuple::getTemporary(Context, Ops);
-    EXPECT_TRUE(Temp->isTemporary());
-
-    // Don't expect a collision.
-    auto *Current = Temp.get();
-    FirstUniqued = MDNode::replaceWithUniqued(std::move(Temp));
-    EXPECT_TRUE(FirstUniqued->isUniqued());
-    EXPECT_TRUE(FirstUniqued->isResolved());
-    EXPECT_EQ(Current, FirstUniqued);
-  }
-  {
-    Metadata *Ops[] = {Empty};
-    auto Temp = MDTuple::getTemporary(Context, Ops);
-    EXPECT_TRUE(Temp->isTemporary());
-
-    // Should collide with Uniqued above this time.
-    auto *Uniqued = MDNode::replaceWithUniqued(std::move(Temp));
-    EXPECT_TRUE(Uniqued->isUniqued());
-    EXPECT_TRUE(Uniqued->isResolved());
-    EXPECT_EQ(FirstUniqued, Uniqued);
-  }
-  {
-    auto Unresolved = MDTuple::getTemporary(Context, None);
-    Metadata *Ops[] = {Unresolved.get()};
-    auto Temp = MDTuple::getTemporary(Context, Ops);
-    EXPECT_TRUE(Temp->isTemporary());
-
-    // Shouldn't be resolved.
-    auto *Uniqued = MDNode::replaceWithUniqued(std::move(Temp));
-    EXPECT_TRUE(Uniqued->isUniqued());
-    EXPECT_FALSE(Uniqued->isResolved());
-
-    // Should be a different node.
-    EXPECT_NE(FirstUniqued, Uniqued);
-
-    // Should resolve when we update its node (note: be careful to avoid a
-    // collision with any other nodes above).
-    Uniqued->replaceOperandWith(0, nullptr);
-    EXPECT_TRUE(Uniqued->isResolved());
-  }
-}
-
-TEST_F(MDNodeTest, replaceWithUniquedResolvingOperand) {
-  // temp !{}
-  MDTuple *Op = MDTuple::getTemporary(Context, None).release();
-  EXPECT_FALSE(Op->isResolved());
-
-  // temp !{temp !{}}
-  Metadata *Ops[] = {Op};
-  MDTuple *N = MDTuple::getTemporary(Context, Ops).release();
-  EXPECT_FALSE(N->isResolved());
-
-  // temp !{temp !{}} => !{temp !{}}
-  ASSERT_EQ(N, MDNode::replaceWithUniqued(TempMDTuple(N)));
-  EXPECT_FALSE(N->isResolved());
-
-  // !{temp !{}} => !{!{}}
-  ASSERT_EQ(Op, MDNode::replaceWithUniqued(TempMDTuple(Op)));
-  EXPECT_TRUE(Op->isResolved());
-  EXPECT_TRUE(N->isResolved());
-}
-
-TEST_F(MDNodeTest, replaceWithUniquedDeletedOperand) {
-  // i1* @GV
-  Type *Ty = Type::getInt1PtrTy(Context);
-  std::unique_ptr<GlobalVariable> GV(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  ConstantAsMetadata *Op = ConstantAsMetadata::get(GV.get());
-
-  // temp !{i1* @GV}
-  Metadata *Ops[] = {Op};
-  MDTuple *N = MDTuple::getTemporary(Context, Ops).release();
-
-  // temp !{i1* @GV} => !{i1* @GV}
-  ASSERT_EQ(N, MDNode::replaceWithUniqued(TempMDTuple(N)));
-  ASSERT_TRUE(N->isUniqued());
-
-  // !{i1* @GV} => !{null}
-  GV.reset();
-  ASSERT_TRUE(N->isDistinct());
-  ASSERT_EQ(nullptr, N->getOperand(0));
-  Metadata *NullOps[] = {nullptr};
-  ASSERT_NE(N, MDTuple::get(Context, NullOps));
-}
-
-TEST_F(MDNodeTest, replaceWithUniquedChangedOperand) {
-  // i1* @GV
-  Type *Ty = Type::getInt1PtrTy(Context);
-  std::unique_ptr<GlobalVariable> GV(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  ConstantAsMetadata *Op = ConstantAsMetadata::get(GV.get());
-
-  // temp !{i1* @GV}
-  Metadata *Ops[] = {Op};
-  MDTuple *N = MDTuple::getTemporary(Context, Ops).release();
-
-  // temp !{i1* @GV} => !{i1* @GV}
-  ASSERT_EQ(N, MDNode::replaceWithUniqued(TempMDTuple(N)));
-  ASSERT_TRUE(N->isUniqued());
-
-  // !{i1* @GV} => !{i1* @GV2}
-  std::unique_ptr<GlobalVariable> GV2(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  GV->replaceAllUsesWith(GV2.get());
-  ASSERT_TRUE(N->isUniqued());
-  Metadata *NullOps[] = {ConstantAsMetadata::get(GV2.get())};
-  ASSERT_EQ(N, MDTuple::get(Context, NullOps));
-}
-
-TEST_F(MDNodeTest, replaceWithDistinct) {
-  {
-    auto *Empty = MDTuple::get(Context, None);
-    Metadata *Ops[] = {Empty};
-    auto Temp = MDTuple::getTemporary(Context, Ops);
-    EXPECT_TRUE(Temp->isTemporary());
-
-    // Don't expect a collision.
-    auto *Current = Temp.get();
-    auto *Distinct = MDNode::replaceWithDistinct(std::move(Temp));
-    EXPECT_TRUE(Distinct->isDistinct());
-    EXPECT_TRUE(Distinct->isResolved());
-    EXPECT_EQ(Current, Distinct);
-  }
-  {
-    auto Unresolved = MDTuple::getTemporary(Context, None);
-    Metadata *Ops[] = {Unresolved.get()};
-    auto Temp = MDTuple::getTemporary(Context, Ops);
-    EXPECT_TRUE(Temp->isTemporary());
-
-    // Don't expect a collision.
-    auto *Current = Temp.get();
-    auto *Distinct = MDNode::replaceWithDistinct(std::move(Temp));
-    EXPECT_TRUE(Distinct->isDistinct());
-    EXPECT_TRUE(Distinct->isResolved());
-    EXPECT_EQ(Current, Distinct);
-
-    // Cleanup; required for teardown.
-    Unresolved->replaceAllUsesWith(nullptr);
-  }
-}
-
-TEST_F(MDNodeTest, replaceWithPermanent) {
-  Metadata *Ops[] = {nullptr};
-  auto Temp = MDTuple::getTemporary(Context, Ops);
-  auto *T = Temp.get();
-
-  // U is a normal, uniqued node that references T.
-  auto *U = MDTuple::get(Context, T);
-  EXPECT_TRUE(U->isUniqued());
-
-  // Make Temp self-referencing.
-  Temp->replaceOperandWith(0, T);
-
-  // Try to uniquify Temp.  This should, despite the name in the API, give a
-  // 'distinct' node, since self-references aren't allowed to be uniqued.
-  //
-  // Since it's distinct, N should have the same address as when it was a
-  // temporary (i.e., be equal to T not U).
-  auto *N = MDNode::replaceWithPermanent(std::move(Temp));
-  EXPECT_EQ(N, T);
-  EXPECT_TRUE(N->isDistinct());
-
-  // U should be the canonical unique node with N as the argument.
-  EXPECT_EQ(U, MDTuple::get(Context, N));
-  EXPECT_TRUE(U->isUniqued());
-
-  // This temporary should collide with U when replaced, but it should still be
-  // uniqued.
-  EXPECT_EQ(U, MDNode::replaceWithPermanent(MDTuple::getTemporary(Context, N)));
-  EXPECT_TRUE(U->isUniqued());
-
-  // This temporary should become a new uniqued node.
-  auto Temp2 = MDTuple::getTemporary(Context, U);
-  auto *V = Temp2.get();
-  EXPECT_EQ(V, MDNode::replaceWithPermanent(std::move(Temp2)));
-  EXPECT_TRUE(V->isUniqued());
-  EXPECT_EQ(U, V->getOperand(0));
-}
-
-TEST_F(MDNodeTest, deleteTemporaryWithTrackingRef) {
-  TrackingMDRef Ref;
-  EXPECT_EQ(nullptr, Ref.get());
-  {
-    auto Temp = MDTuple::getTemporary(Context, None);
-    Ref.reset(Temp.get());
-    EXPECT_EQ(Temp.get(), Ref.get());
-  }
-  EXPECT_EQ(nullptr, Ref.get());
-}
-
-typedef MetadataTest DILocationTest;
-
-TEST_F(DILocationTest, Overflow) {
-  DISubprogram *N = getSubprogram();
-  {
-    DILocation *L = DILocation::get(Context, 2, 7, N);
-    EXPECT_EQ(2u, L->getLine());
-    EXPECT_EQ(7u, L->getColumn());
-  }
-  unsigned U16 = 1u << 16;
-  {
-    DILocation *L = DILocation::get(Context, UINT32_MAX, U16 - 1, N);
-    EXPECT_EQ(UINT32_MAX, L->getLine());
-    EXPECT_EQ(U16 - 1, L->getColumn());
-  }
-  {
-    DILocation *L = DILocation::get(Context, UINT32_MAX, U16, N);
-    EXPECT_EQ(UINT32_MAX, L->getLine());
-    EXPECT_EQ(0u, L->getColumn());
-  }
-  {
-    DILocation *L = DILocation::get(Context, UINT32_MAX, U16 + 1, N);
-    EXPECT_EQ(UINT32_MAX, L->getLine());
-    EXPECT_EQ(0u, L->getColumn());
-  }
-}
-
-TEST_F(DILocationTest, Merge) {
-  DISubprogram *N = getSubprogram();
-  DIScope *S = DILexicalBlock::get(Context, N, getFile(), 3, 4);
-
-  {
-    // Identical.
-    auto *A = DILocation::get(Context, 2, 7, N);
-    auto *B = DILocation::get(Context, 2, 7, N);
-    auto *M = DILocation::getMergedLocation(A, B);
-    EXPECT_EQ(2u, M->getLine());
-    EXPECT_EQ(7u, M->getColumn());
-    EXPECT_EQ(N, M->getScope());
-  }
-
-  {
-    // Identical, different scopes.
-    auto *A = DILocation::get(Context, 2, 7, N);
-    auto *B = DILocation::get(Context, 2, 7, S);
-    auto *M = DILocation::getMergedLocation(A, B);
-    EXPECT_EQ(0u, M->getLine()); // FIXME: Should this be 2?
-    EXPECT_EQ(0u, M->getColumn()); // FIXME: Should this be 7?
-    EXPECT_EQ(N, M->getScope());
-  }
-
-  {
-    // Different lines, same scopes.
-    auto *A = DILocation::get(Context, 1, 6, N);
-    auto *B = DILocation::get(Context, 2, 7, N);
-    auto *M = DILocation::getMergedLocation(A, B);
-    EXPECT_EQ(0u, M->getLine());
-    EXPECT_EQ(0u, M->getColumn());
-    EXPECT_EQ(N, M->getScope());
-  }
-
-  {
-    // Twisty locations, all different, same function.
-    auto *A = DILocation::get(Context, 1, 6, N);
-    auto *B = DILocation::get(Context, 2, 7, S);
-    auto *M = DILocation::getMergedLocation(A, B);
-    EXPECT_EQ(0u, M->getLine());
-    EXPECT_EQ(0u, M->getColumn());
-    EXPECT_EQ(N, M->getScope());
-  }
-
-  {
-    // Different function, same inlined-at.
-    auto *F = getFile();
-    auto *SP1 = DISubprogram::getDistinct(Context, F, "a", "a", F, 0, nullptr,
-                                          0, nullptr, 0, 0, DINode::FlagZero,
-                                          DISubprogram::SPFlagZero, nullptr);
-    auto *SP2 = DISubprogram::getDistinct(Context, F, "b", "b", F, 0, nullptr,
-                                          0, nullptr, 0, 0, DINode::FlagZero,
-                                          DISubprogram::SPFlagZero, nullptr);
-
-    auto *I = DILocation::get(Context, 2, 7, N);
-    auto *A = DILocation::get(Context, 1, 6, SP1, I);
-    auto *B = DILocation::get(Context, 2, 7, SP2, I);
-    auto *M = DILocation::getMergedLocation(A, B);
-    EXPECT_EQ(0u, M->getLine());
-    EXPECT_EQ(0u, M->getColumn());
-    EXPECT_TRUE(isa<DILocalScope>(M->getScope()));
-    EXPECT_EQ(I, M->getInlinedAt());
-  }
-
-   {
-    // Completely different.
-    auto *I = DILocation::get(Context, 2, 7, N);
-    auto *A = DILocation::get(Context, 1, 6, S, I);
-    auto *B = DILocation::get(Context, 2, 7, getSubprogram());
-    auto *M = DILocation::getMergedLocation(A, B);
-    EXPECT_EQ(0u, M->getLine());
-    EXPECT_EQ(0u, M->getColumn());
-    EXPECT_TRUE(isa<DILocalScope>(M->getScope()));
-    EXPECT_EQ(S, M->getScope());
-    EXPECT_EQ(nullptr, M->getInlinedAt());
-  }
-}
-
-TEST_F(DILocationTest, getDistinct) {
-  MDNode *N = getSubprogram();
-  DILocation *L0 = DILocation::getDistinct(Context, 2, 7, N);
-  EXPECT_TRUE(L0->isDistinct());
-  DILocation *L1 = DILocation::get(Context, 2, 7, N);
-  EXPECT_FALSE(L1->isDistinct());
-  EXPECT_EQ(L1, DILocation::get(Context, 2, 7, N));
-}
-
-TEST_F(DILocationTest, getTemporary) {
-  MDNode *N = MDNode::get(Context, None);
-  auto L = DILocation::getTemporary(Context, 2, 7, N);
-  EXPECT_TRUE(L->isTemporary());
-  EXPECT_FALSE(L->isResolved());
-}
-
-TEST_F(DILocationTest, cloneTemporary) {
-  MDNode *N = MDNode::get(Context, None);
-  auto L = DILocation::getTemporary(Context, 2, 7, N);
-  EXPECT_TRUE(L->isTemporary());
-  auto L2 = L->clone();
-  EXPECT_TRUE(L2->isTemporary());
-}
-
-TEST_F(DILocationTest, discriminatorEncoding) {
-  EXPECT_EQ(0U, DILocation::encodeDiscriminator(0, 0, 0).getValue());
-
-  // Encode base discriminator as a component: lsb is 0, then the value.
-  // The other components are all absent, so we leave all the other bits 0.
-  EXPECT_EQ(2U, DILocation::encodeDiscriminator(1, 0, 0).getValue());
-
-  // Base discriminator component is empty, so lsb is 1. Next component is not
-  // empty, so its lsb is 0, then its value (1). Next component is empty.
-  // So the bit pattern is 101.
-  EXPECT_EQ(5U, DILocation::encodeDiscriminator(0, 1, 0).getValue());
-
-  // First 2 components are empty, so the bit pattern is 11. Then the
-  // next component - ending up with 1011.
-  EXPECT_EQ(0xbU, DILocation::encodeDiscriminator(0, 0, 1).getValue());
-
-  // The bit pattern for the first 2 components is 11. The next bit is 0,
-  // because the last component is not empty. We have 29 bits usable for
-  // encoding, but we cap it at 12 bits uniformously for all components. We
-  // encode the last component over 14 bits.
-  EXPECT_EQ(0xfffbU, DILocation::encodeDiscriminator(0, 0, 0xfff).getValue());
-
-  EXPECT_EQ(0x102U, DILocation::encodeDiscriminator(1, 1, 0).getValue());
-
-  EXPECT_EQ(0x13eU, DILocation::encodeDiscriminator(0x1f, 1, 0).getValue());
-
-  EXPECT_EQ(0x87feU, DILocation::encodeDiscriminator(0x1ff, 1, 0).getValue());
-
-  EXPECT_EQ(0x1f3eU, DILocation::encodeDiscriminator(0x1f, 0x1f, 0).getValue());
-
-  EXPECT_EQ(0x3ff3eU,
-            DILocation::encodeDiscriminator(0x1f, 0x1ff, 0).getValue());
-
-  EXPECT_EQ(0x1ff87feU,
-            DILocation::encodeDiscriminator(0x1ff, 0x1ff, 0).getValue());
-
-  EXPECT_EQ(0xfff9f3eU,
-            DILocation::encodeDiscriminator(0x1f, 0x1f, 0xfff).getValue());
-
-  EXPECT_EQ(0xffc3ff3eU,
-            DILocation::encodeDiscriminator(0x1f, 0x1ff, 0x1ff).getValue());
-
-  EXPECT_EQ(0xffcf87feU,
-            DILocation::encodeDiscriminator(0x1ff, 0x1f, 0x1ff).getValue());
-
-  EXPECT_EQ(0xe1ff87feU,
-            DILocation::encodeDiscriminator(0x1ff, 0x1ff, 7).getValue());
-}
-
-TEST_F(DILocationTest, discriminatorEncodingNegativeTests) {
-  EXPECT_EQ(None, DILocation::encodeDiscriminator(0, 0, 0x1000));
-  EXPECT_EQ(None, DILocation::encodeDiscriminator(0x1000, 0, 0));
-  EXPECT_EQ(None, DILocation::encodeDiscriminator(0, 0x1000, 0));
-  EXPECT_EQ(None, DILocation::encodeDiscriminator(0, 0, 0x1000));
-  EXPECT_EQ(None, DILocation::encodeDiscriminator(0x1ff, 0x1ff, 8));
-  EXPECT_EQ(None,
-            DILocation::encodeDiscriminator(std::numeric_limits<uint32_t>::max(),
-                                            std::numeric_limits<uint32_t>::max(),
-                                            0));
-}
-
-TEST_F(DILocationTest, discriminatorSpecialCases) {
-  // We don't test getCopyIdentifier here because the only way
-  // to set it is by constructing an encoded discriminator using
-  // encodeDiscriminator, which is already tested.
-  auto L1 = DILocation::get(Context, 1, 2, getSubprogram());
-  EXPECT_EQ(0U, L1->getBaseDiscriminator());
-  EXPECT_EQ(1U, L1->getDuplicationFactor());
-
-  auto L2 = L1->setBaseDiscriminator(1).getValue();
-  EXPECT_EQ(0U, L1->getBaseDiscriminator());
-  EXPECT_EQ(1U, L1->getDuplicationFactor());
-
-  EXPECT_EQ(1U, L2->getBaseDiscriminator());
-  EXPECT_EQ(1U, L2->getDuplicationFactor());
-
-  auto L3 = L2->cloneWithDuplicationFactor(2).getValue();
-  EXPECT_EQ(1U, L3->getBaseDiscriminator());
-  EXPECT_EQ(2U, L3->getDuplicationFactor());
-
-  auto L4 = L3->cloneWithDuplicationFactor(4).getValue();
-  EXPECT_EQ(1U, L4->getBaseDiscriminator());
-  EXPECT_EQ(8U, L4->getDuplicationFactor());
-
-  auto L5 = L4->setBaseDiscriminator(2).getValue();
-  EXPECT_EQ(2U, L5->getBaseDiscriminator());
-  EXPECT_EQ(1U, L5->getDuplicationFactor());
-
-  // Check extreme cases
-  auto L6 = L1->setBaseDiscriminator(0xfff).getValue();
-  EXPECT_EQ(0xfffU, L6->getBaseDiscriminator());
-  EXPECT_EQ(
-      0xfffU,
-      L6->cloneWithDuplicationFactor(0xfff).getValue()->getDuplicationFactor());
-
-  // Check we return None for unencodable cases.
-  EXPECT_EQ(None, L4->setBaseDiscriminator(0x1000));
-  EXPECT_EQ(None, L4->cloneWithDuplicationFactor(0x1000));
-}
-
-
-typedef MetadataTest GenericDINodeTest;
-
-TEST_F(GenericDINodeTest, get) {
-  StringRef Header = "header";
-  auto *Empty = MDNode::get(Context, None);
-  Metadata *Ops1[] = {Empty};
-  auto *N = GenericDINode::get(Context, 15, Header, Ops1);
-  EXPECT_EQ(15u, N->getTag());
-  EXPECT_EQ(2u, N->getNumOperands());
-  EXPECT_EQ(Header, N->getHeader());
-  EXPECT_EQ(MDString::get(Context, Header), N->getOperand(0));
-  EXPECT_EQ(1u, N->getNumDwarfOperands());
-  EXPECT_EQ(Empty, N->getDwarfOperand(0));
-  EXPECT_EQ(Empty, N->getOperand(1));
-  ASSERT_TRUE(N->isUniqued());
-
-  EXPECT_EQ(N, GenericDINode::get(Context, 15, Header, Ops1));
-
-  N->replaceOperandWith(1, nullptr);
-  EXPECT_EQ(15u, N->getTag());
-  EXPECT_EQ(Header, N->getHeader());
-  EXPECT_EQ(nullptr, N->getDwarfOperand(0));
-  ASSERT_TRUE(N->isUniqued());
-
-  Metadata *Ops2[] = {nullptr};
-  EXPECT_EQ(N, GenericDINode::get(Context, 15, Header, Ops2));
-
-  N->replaceDwarfOperandWith(0, Empty);
-  EXPECT_EQ(15u, N->getTag());
-  EXPECT_EQ(Header, N->getHeader());
-  EXPECT_EQ(Empty, N->getDwarfOperand(0));
-  ASSERT_TRUE(N->isUniqued());
-  EXPECT_EQ(N, GenericDINode::get(Context, 15, Header, Ops1));
-
-  TempGenericDINode Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(GenericDINodeTest, getEmptyHeader) {
-  // Canonicalize !"" to null.
-  auto *N = GenericDINode::get(Context, 15, StringRef(), None);
-  EXPECT_EQ(StringRef(), N->getHeader());
-  EXPECT_EQ(nullptr, N->getOperand(0));
-}
-
-typedef MetadataTest DISubrangeTest;
-
-TEST_F(DISubrangeTest, get) {
-  auto *N = DISubrange::get(Context, 5, 7);
-  auto Count = N->getCount();
-  EXPECT_EQ(dwarf::DW_TAG_subrange_type, N->getTag());
-  ASSERT_TRUE(Count);
-  ASSERT_TRUE(Count.is<ConstantInt*>());
-  EXPECT_EQ(5, Count.get<ConstantInt*>()->getSExtValue());
-  EXPECT_EQ(7, N->getLowerBound());
-  EXPECT_EQ(N, DISubrange::get(Context, 5, 7));
-  EXPECT_EQ(DISubrange::get(Context, 5, 0), DISubrange::get(Context, 5));
-
-  TempDISubrange Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DISubrangeTest, getEmptyArray) {
-  auto *N = DISubrange::get(Context, -1, 0);
-  auto Count = N->getCount();
-  EXPECT_EQ(dwarf::DW_TAG_subrange_type, N->getTag());
-  ASSERT_TRUE(Count);
-  ASSERT_TRUE(Count.is<ConstantInt*>());
-  EXPECT_EQ(-1, Count.get<ConstantInt*>()->getSExtValue());
-  EXPECT_EQ(0, N->getLowerBound());
-  EXPECT_EQ(N, DISubrange::get(Context, -1, 0));
-}
-
-TEST_F(DISubrangeTest, getVariableCount) {
-  DILocalScope *Scope = getSubprogram();
-  DIFile *File = getFile();
-  DIType *Type = getDerivedType();
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(7);
-  auto *VlaExpr = DILocalVariable::get(Context, Scope, "vla_expr", File, 8,
-                                       Type, 2, Flags, 8);
-
-  auto *N = DISubrange::get(Context, VlaExpr, 0);
-  auto Count = N->getCount();
-  ASSERT_TRUE(Count);
-  ASSERT_TRUE(Count.is<DIVariable*>());
-  EXPECT_EQ(VlaExpr, Count.get<DIVariable*>());
-  ASSERT_TRUE(isa<DIVariable>(N->getRawCountNode()));
-  EXPECT_EQ(0, N->getLowerBound());
-  EXPECT_EQ("vla_expr", Count.get<DIVariable*>()->getName());
-  EXPECT_EQ(N, DISubrange::get(Context, VlaExpr, 0));
-}
-
-typedef MetadataTest DIEnumeratorTest;
-
-TEST_F(DIEnumeratorTest, get) {
-  auto *N = DIEnumerator::get(Context, 7, false, "name");
-  EXPECT_EQ(dwarf::DW_TAG_enumerator, N->getTag());
-  EXPECT_EQ(7, N->getValue());
-  EXPECT_FALSE(N->isUnsigned());
-  EXPECT_EQ("name", N->getName());
-  EXPECT_EQ(N, DIEnumerator::get(Context, 7, false, "name"));
-
-  EXPECT_NE(N, DIEnumerator::get(Context, 7, true, "name"));
-  EXPECT_NE(N, DIEnumerator::get(Context, 8, false, "name"));
-  EXPECT_NE(N, DIEnumerator::get(Context, 7, false, "nam"));
-
-  TempDIEnumerator Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DIBasicTypeTest;
-
-TEST_F(DIBasicTypeTest, get) {
-  auto *N =
-      DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 33, 26, 7,
-                        DINode::FlagZero);
-  EXPECT_EQ(dwarf::DW_TAG_base_type, N->getTag());
-  EXPECT_EQ("special", N->getName());
-  EXPECT_EQ(33u, N->getSizeInBits());
-  EXPECT_EQ(26u, N->getAlignInBits());
-  EXPECT_EQ(7u, N->getEncoding());
-  EXPECT_EQ(0u, N->getLine());
-  EXPECT_EQ(DINode::FlagZero, N->getFlags());
-  EXPECT_EQ(N, DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 33,
-                                26, 7, DINode::FlagZero));
-
-  EXPECT_NE(N, DIBasicType::get(Context, dwarf::DW_TAG_unspecified_type,
-                                "special", 33, 26, 7, DINode::FlagZero));
-  EXPECT_NE(N,
-            DIBasicType::get(Context, dwarf::DW_TAG_base_type, "s", 33, 26, 7,
-                              DINode::FlagZero));
-  EXPECT_NE(N, DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 32,
-                                26, 7, DINode::FlagZero));
-  EXPECT_NE(N, DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 33,
-                                25, 7, DINode::FlagZero));
-  EXPECT_NE(N, DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 33,
-                                26, 6, DINode::FlagZero));
-  EXPECT_NE(N, DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 33,
-                                26, 7, DINode::FlagBigEndian));
-  EXPECT_NE(N, DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special", 33,
-                                26, 7, DINode::FlagLittleEndian));
-
-  TempDIBasicType Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DIBasicTypeTest, getWithLargeValues) {
-  auto *N = DIBasicType::get(Context, dwarf::DW_TAG_base_type, "special",
-                             UINT64_MAX, UINT32_MAX - 1, 7, DINode::FlagZero);
-  EXPECT_EQ(UINT64_MAX, N->getSizeInBits());
-  EXPECT_EQ(UINT32_MAX - 1, N->getAlignInBits());
-}
-
-TEST_F(DIBasicTypeTest, getUnspecified) {
-  auto *N =
-      DIBasicType::get(Context, dwarf::DW_TAG_unspecified_type, "unspecified");
-  EXPECT_EQ(dwarf::DW_TAG_unspecified_type, N->getTag());
-  EXPECT_EQ("unspecified", N->getName());
-  EXPECT_EQ(0u, N->getSizeInBits());
-  EXPECT_EQ(0u, N->getAlignInBits());
-  EXPECT_EQ(0u, N->getEncoding());
-  EXPECT_EQ(0u, N->getLine());
-  EXPECT_EQ(DINode::FlagZero, N->getFlags());
-}
-
-typedef MetadataTest DITypeTest;
-
-TEST_F(DITypeTest, clone) {
-  // Check that DIType has a specialized clone that returns TempDIType.
-  DIType *N = DIBasicType::get(Context, dwarf::DW_TAG_base_type, "int", 32, 32,
-                               dwarf::DW_ATE_signed, DINode::FlagZero);
-
-  TempDIType Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DITypeTest, cloneWithFlags) {
-  // void (void)
-  Metadata *TypesOps[] = {nullptr};
-  Metadata *Types = MDTuple::get(Context, TypesOps);
-
-  DIType *D =
-      DISubroutineType::getDistinct(Context, DINode::FlagZero, 0, Types);
-  EXPECT_EQ(DINode::FlagZero, D->getFlags());
-  TempDIType D2 = D->cloneWithFlags(DINode::FlagRValueReference);
-  EXPECT_EQ(DINode::FlagRValueReference, D2->getFlags());
-  EXPECT_EQ(DINode::FlagZero, D->getFlags());
-
-  TempDIType T =
-      DISubroutineType::getTemporary(Context, DINode::FlagZero, 0, Types);
-  EXPECT_EQ(DINode::FlagZero, T->getFlags());
-  TempDIType T2 = T->cloneWithFlags(DINode::FlagRValueReference);
-  EXPECT_EQ(DINode::FlagRValueReference, T2->getFlags());
-  EXPECT_EQ(DINode::FlagZero, T->getFlags());
-}
-
-typedef MetadataTest DIDerivedTypeTest;
-
-TEST_F(DIDerivedTypeTest, get) {
-  DIFile *File = getFile();
-  DIScope *Scope = getSubprogram();
-  DIType *BaseType = getBasicType("basic");
-  MDTuple *ExtraData = getTuple();
-  unsigned DWARFAddressSpace = 8;
-  DINode::DIFlags Flags5 = static_cast<DINode::DIFlags>(5);
-  DINode::DIFlags Flags4 = static_cast<DINode::DIFlags>(4);
-
-  auto *N =
-      DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type, "something", File,
-                         1, Scope, BaseType, 2, 3, 4, DWARFAddressSpace, Flags5,
-                         ExtraData);
-  EXPECT_EQ(dwarf::DW_TAG_pointer_type, N->getTag());
-  EXPECT_EQ("something", N->getName());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(1u, N->getLine());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(BaseType, N->getBaseType());
-  EXPECT_EQ(2u, N->getSizeInBits());
-  EXPECT_EQ(3u, N->getAlignInBits());
-  EXPECT_EQ(4u, N->getOffsetInBits());
-  EXPECT_EQ(DWARFAddressSpace, N->getDWARFAddressSpace().getValue());
-  EXPECT_EQ(5u, N->getFlags());
-  EXPECT_EQ(ExtraData, N->getExtraData());
-  EXPECT_EQ(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace, Flags5, ExtraData));
-
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_reference_type,
-                                  "something", File, 1, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type, "else",
-                                  File, 1, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", getFile(), 1, Scope, BaseType, 2,
-                                  3, 4, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 2, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, getSubprogram(),
-                                  BaseType, 2, 3, 4, DWARFAddressSpace, Flags5,
-                                  ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(
-                   Context, dwarf::DW_TAG_pointer_type, "something", File, 1,
-                   Scope, getBasicType("basic2"), 2, 3, 4, DWARFAddressSpace,
-                   Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 3, 3,
-                                  4, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 2, 2,
-                                  4, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 2, 3,
-                                  5, DWARFAddressSpace, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace + 1, Flags5, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace, Flags4, ExtraData));
-  EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
-                                  "something", File, 1, Scope, BaseType, 2, 3,
-                                  4, DWARFAddressSpace, Flags5, getTuple()));
-
-  TempDIDerivedType Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DIDerivedTypeTest, getWithLargeValues) {
-  DIFile *File = getFile();
-  DIScope *Scope = getSubprogram();
-  DIType *BaseType = getBasicType("basic");
-  MDTuple *ExtraData = getTuple();
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(5);
-
-  auto *N = DIDerivedType::get(
-      Context, dwarf::DW_TAG_pointer_type, "something", File, 1, Scope,
-      BaseType, UINT64_MAX, UINT32_MAX - 1, UINT64_MAX - 2, UINT32_MAX - 3,
-      Flags, ExtraData);
-  EXPECT_EQ(UINT64_MAX, N->getSizeInBits());
-  EXPECT_EQ(UINT32_MAX - 1, N->getAlignInBits());
-  EXPECT_EQ(UINT64_MAX - 2, N->getOffsetInBits());
-  EXPECT_EQ(UINT32_MAX - 3, N->getDWARFAddressSpace().getValue());
-}
-
-typedef MetadataTest DICompositeTypeTest;
-
-TEST_F(DICompositeTypeTest, get) {
-  unsigned Tag = dwarf::DW_TAG_structure_type;
-  StringRef Name = "some name";
-  DIFile *File = getFile();
-  unsigned Line = 1;
-  DIScope *Scope = getSubprogram();
-  DIType *BaseType = getCompositeType();
-  uint64_t SizeInBits = 2;
-  uint32_t AlignInBits = 3;
-  uint64_t OffsetInBits = 4;
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(5);
-  MDTuple *Elements = getTuple();
-  unsigned RuntimeLang = 6;
-  DIType *VTableHolder = getCompositeType();
-  MDTuple *TemplateParams = getTuple();
-  StringRef Identifier = "some id";
-
-  auto *N = DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                 BaseType, SizeInBits, AlignInBits,
-                                 OffsetInBits, Flags, Elements, RuntimeLang,
-                                 VTableHolder, TemplateParams, Identifier);
-  EXPECT_EQ(Tag, N->getTag());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(BaseType, N->getBaseType());
-  EXPECT_EQ(SizeInBits, N->getSizeInBits());
-  EXPECT_EQ(AlignInBits, N->getAlignInBits());
-  EXPECT_EQ(OffsetInBits, N->getOffsetInBits());
-  EXPECT_EQ(Flags, N->getFlags());
-  EXPECT_EQ(Elements, N->getElements().get());
-  EXPECT_EQ(RuntimeLang, N->getRuntimeLang());
-  EXPECT_EQ(VTableHolder, N->getVTableHolder());
-  EXPECT_EQ(TemplateParams, N->getTemplateParams().get());
-  EXPECT_EQ(Identifier, N->getIdentifier());
-
-  EXPECT_EQ(N, DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-
-  EXPECT_NE(N, DICompositeType::get(Context, Tag + 1, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, "abc", File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, Name, getFile(), Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, Name, File, Line + 1, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, getSubprogram(), BaseType,
-                   SizeInBits, AlignInBits, OffsetInBits, Flags, Elements,
-                   RuntimeLang, VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, Scope, getBasicType("other"),
-                   SizeInBits, AlignInBits, OffsetInBits, Flags, Elements,
-                   RuntimeLang, VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits + 1, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits + 1,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits,
-                   AlignInBits, OffsetInBits + 1, Flags, Elements, RuntimeLang,
-                   VTableHolder, TemplateParams, Identifier));
-  DINode::DIFlags FlagsPOne = static_cast<DINode::DIFlags>(Flags + 1);
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits,
-                   AlignInBits, OffsetInBits, FlagsPOne, Elements, RuntimeLang,
-                   VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits,
-                   AlignInBits, OffsetInBits, Flags, getTuple(), RuntimeLang,
-                   VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits,
-                   AlignInBits, OffsetInBits, Flags, Elements, RuntimeLang + 1,
-                   VTableHolder, TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(
-                   Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits,
-                   AlignInBits, OffsetInBits, Flags, Elements, RuntimeLang,
-                   getCompositeType(), TemplateParams, Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, getTuple(), Identifier));
-  EXPECT_NE(N, DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, "other"));
-
-  // Be sure that missing identifiers get null pointers.
-  EXPECT_FALSE(DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams, "")
-                   ->getRawIdentifier());
-  EXPECT_FALSE(DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                    BaseType, SizeInBits, AlignInBits,
-                                    OffsetInBits, Flags, Elements, RuntimeLang,
-                                    VTableHolder, TemplateParams)
-                   ->getRawIdentifier());
-
-  TempDICompositeType Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DICompositeTypeTest, getWithLargeValues) {
-  unsigned Tag = dwarf::DW_TAG_structure_type;
-  StringRef Name = "some name";
-  DIFile *File = getFile();
-  unsigned Line = 1;
-  DIScope *Scope = getSubprogram();
-  DIType *BaseType = getCompositeType();
-  uint64_t SizeInBits = UINT64_MAX;
-  uint32_t AlignInBits = UINT32_MAX - 1;
-  uint64_t OffsetInBits = UINT64_MAX - 2;
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(5);
-  MDTuple *Elements = getTuple();
-  unsigned RuntimeLang = 6;
-  DIType *VTableHolder = getCompositeType();
-  MDTuple *TemplateParams = getTuple();
-  StringRef Identifier = "some id";
-
-  auto *N = DICompositeType::get(Context, Tag, Name, File, Line, Scope,
-                                 BaseType, SizeInBits, AlignInBits,
-                                 OffsetInBits, Flags, Elements, RuntimeLang,
-                                 VTableHolder, TemplateParams, Identifier);
-  EXPECT_EQ(SizeInBits, N->getSizeInBits());
-  EXPECT_EQ(AlignInBits, N->getAlignInBits());
-  EXPECT_EQ(OffsetInBits, N->getOffsetInBits());
-}
-
-TEST_F(DICompositeTypeTest, replaceOperands) {
-  unsigned Tag = dwarf::DW_TAG_structure_type;
-  StringRef Name = "some name";
-  DIFile *File = getFile();
-  unsigned Line = 1;
-  DIScope *Scope = getSubprogram();
-  DIType *BaseType = getCompositeType();
-  uint64_t SizeInBits = 2;
-  uint32_t AlignInBits = 3;
-  uint64_t OffsetInBits = 4;
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(5);
-  unsigned RuntimeLang = 6;
-  StringRef Identifier = "some id";
-
-  auto *N = DICompositeType::get(
-      Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
-      OffsetInBits, Flags, nullptr, RuntimeLang, nullptr, nullptr, Identifier);
-
-  auto *Elements = MDTuple::getDistinct(Context, None);
-  EXPECT_EQ(nullptr, N->getElements().get());
-  N->replaceElements(Elements);
-  EXPECT_EQ(Elements, N->getElements().get());
-  N->replaceElements(nullptr);
-  EXPECT_EQ(nullptr, N->getElements().get());
-
-  DIType *VTableHolder = getCompositeType();
-  EXPECT_EQ(nullptr, N->getVTableHolder());
-  N->replaceVTableHolder(VTableHolder);
-  EXPECT_EQ(VTableHolder, N->getVTableHolder());
-  // As an extension, the containing type can be anything.  This is
-  // used by Rust to associate vtables with their concrete type.
-  DIType *BasicType = getBasicType("basic");
-  N->replaceVTableHolder(BasicType);
-  EXPECT_EQ(BasicType, N->getVTableHolder());
-  N->replaceVTableHolder(nullptr);
-  EXPECT_EQ(nullptr, N->getVTableHolder());
-
-  auto *TemplateParams = MDTuple::getDistinct(Context, None);
-  EXPECT_EQ(nullptr, N->getTemplateParams().get());
-  N->replaceTemplateParams(TemplateParams);
-  EXPECT_EQ(TemplateParams, N->getTemplateParams().get());
-  N->replaceTemplateParams(nullptr);
-  EXPECT_EQ(nullptr, N->getTemplateParams().get());
-}
-
-TEST_F(DICompositeTypeTest, variant_part) {
-  unsigned Tag = dwarf::DW_TAG_variant_part;
-  StringRef Name = "some name";
-  DIFile *File = getFile();
-  unsigned Line = 1;
-  DIScope *Scope = getSubprogram();
-  DIType *BaseType = getCompositeType();
-  uint64_t SizeInBits = 2;
-  uint32_t AlignInBits = 3;
-  uint64_t OffsetInBits = 4;
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(5);
-  unsigned RuntimeLang = 6;
-  StringRef Identifier = "some id";
-  DIDerivedType *Discriminator = cast<DIDerivedType>(getDerivedType());
-  DIDerivedType *Discriminator2 = cast<DIDerivedType>(getDerivedType());
-
-  EXPECT_NE(Discriminator, Discriminator2);
-
-  auto *N = DICompositeType::get(
-      Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
-      OffsetInBits, Flags, nullptr, RuntimeLang, nullptr, nullptr, Identifier,
-      Discriminator);
-
-  // Test the hashing.
-  auto *Same = DICompositeType::get(
-      Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
-      OffsetInBits, Flags, nullptr, RuntimeLang, nullptr, nullptr, Identifier,
-      Discriminator);
-  auto *Other = DICompositeType::get(
-      Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
-      OffsetInBits, Flags, nullptr, RuntimeLang, nullptr, nullptr, Identifier,
-      Discriminator2);
-  auto *NoDisc = DICompositeType::get(
-      Context, Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
-      OffsetInBits, Flags, nullptr, RuntimeLang, nullptr, nullptr, Identifier,
-      nullptr);
-
-  EXPECT_EQ(N, Same);
-  EXPECT_NE(Same, Other);
-  EXPECT_NE(Same, NoDisc);
-  EXPECT_NE(Other, NoDisc);
-
-  EXPECT_EQ(N->getDiscriminator(), Discriminator);
-}
-
-typedef MetadataTest DISubroutineTypeTest;
-
-TEST_F(DISubroutineTypeTest, get) {
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(1);
-  DINode::DIFlags FlagsPOne = static_cast<DINode::DIFlags>(Flags + 1);
-  MDTuple *TypeArray = getTuple();
-
-  auto *N = DISubroutineType::get(Context, Flags, 0, TypeArray);
-  EXPECT_EQ(dwarf::DW_TAG_subroutine_type, N->getTag());
-  EXPECT_EQ(Flags, N->getFlags());
-  EXPECT_EQ(TypeArray, N->getTypeArray().get());
-  EXPECT_EQ(N, DISubroutineType::get(Context, Flags, 0, TypeArray));
-
-  EXPECT_NE(N, DISubroutineType::get(Context, FlagsPOne, 0, TypeArray));
-  EXPECT_NE(N, DISubroutineType::get(Context, Flags, 0, getTuple()));
-
-  // Test the hashing of calling conventions.
-  auto *Fast = DISubroutineType::get(
-      Context, Flags, dwarf::DW_CC_BORLAND_msfastcall, TypeArray);
-  auto *Std = DISubroutineType::get(Context, Flags,
-                                    dwarf::DW_CC_BORLAND_stdcall, TypeArray);
-  EXPECT_EQ(Fast,
-            DISubroutineType::get(Context, Flags,
-                                  dwarf::DW_CC_BORLAND_msfastcall, TypeArray));
-  EXPECT_EQ(Std, DISubroutineType::get(
-                     Context, Flags, dwarf::DW_CC_BORLAND_stdcall, TypeArray));
-
-  EXPECT_NE(N, Fast);
-  EXPECT_NE(N, Std);
-  EXPECT_NE(Fast, Std);
-
-  TempDISubroutineType Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-
-  // Test always-empty operands.
-  EXPECT_EQ(nullptr, N->getScope());
-  EXPECT_EQ(nullptr, N->getFile());
-  EXPECT_EQ("", N->getName());
-}
-
-typedef MetadataTest DIFileTest;
-
-TEST_F(DIFileTest, get) {
-  StringRef Filename = "file";
-  StringRef Directory = "dir";
-  DIFile::ChecksumKind CSKind = DIFile::ChecksumKind::CSK_MD5;
-  StringRef ChecksumString = "000102030405060708090a0b0c0d0e0f";
-  DIFile::ChecksumInfo<StringRef> Checksum(CSKind, ChecksumString);
-  StringRef Source = "source";
-  auto *N = DIFile::get(Context, Filename, Directory, Checksum, Source);
-
-  EXPECT_EQ(dwarf::DW_TAG_file_type, N->getTag());
-  EXPECT_EQ(Filename, N->getFilename());
-  EXPECT_EQ(Directory, N->getDirectory());
-  EXPECT_EQ(Checksum, N->getChecksum());
-  EXPECT_EQ(Source, N->getSource());
-  EXPECT_EQ(N, DIFile::get(Context, Filename, Directory, Checksum, Source));
-
-  EXPECT_NE(N, DIFile::get(Context, "other", Directory, Checksum, Source));
-  EXPECT_NE(N, DIFile::get(Context, Filename, "other", Checksum, Source));
-  DIFile::ChecksumInfo<StringRef> OtherChecksum(DIFile::ChecksumKind::CSK_SHA1, ChecksumString);
-  EXPECT_NE(
-      N, DIFile::get(Context, Filename, Directory, OtherChecksum));
-  StringRef OtherSource = "other";
-  EXPECT_NE(N, DIFile::get(Context, Filename, Directory, Checksum, OtherSource));
-  EXPECT_NE(N, DIFile::get(Context, Filename, Directory, Checksum));
-  EXPECT_NE(N, DIFile::get(Context, Filename, Directory));
-
-  TempDIFile Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DIFileTest, ScopeGetFile) {
-  // Ensure that DIScope::getFile() returns itself.
-  DIScope *N = DIFile::get(Context, "file", "dir");
-  EXPECT_EQ(N, N->getFile());
-}
-
-typedef MetadataTest DICompileUnitTest;
-
-TEST_F(DICompileUnitTest, get) {
-  unsigned SourceLanguage = 1;
-  DIFile *File = getFile();
-  StringRef Producer = "some producer";
-  bool IsOptimized = false;
-  StringRef Flags = "flag after flag";
-  unsigned RuntimeVersion = 2;
-  StringRef SplitDebugFilename = "another/file";
-  auto EmissionKind = DICompileUnit::FullDebug;
-  MDTuple *EnumTypes = getTuple();
-  MDTuple *RetainedTypes = getTuple();
-  MDTuple *GlobalVariables = getTuple();
-  MDTuple *ImportedEntities = getTuple();
-  uint64_t DWOId = 0x10000000c0ffee;
-  MDTuple *Macros = getTuple();
-  auto *N = DICompileUnit::getDistinct(
-      Context, SourceLanguage, File, Producer, IsOptimized, Flags,
-      RuntimeVersion, SplitDebugFilename, EmissionKind, EnumTypes,
-      RetainedTypes, GlobalVariables, ImportedEntities, Macros, DWOId, true,
-      false, DICompileUnit::DebugNameTableKind::Default, false);
-
-  EXPECT_EQ(dwarf::DW_TAG_compile_unit, N->getTag());
-  EXPECT_EQ(SourceLanguage, N->getSourceLanguage());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Producer, N->getProducer());
-  EXPECT_EQ(IsOptimized, N->isOptimized());
-  EXPECT_EQ(Flags, N->getFlags());
-  EXPECT_EQ(RuntimeVersion, N->getRuntimeVersion());
-  EXPECT_EQ(SplitDebugFilename, N->getSplitDebugFilename());
-  EXPECT_EQ(EmissionKind, N->getEmissionKind());
-  EXPECT_EQ(EnumTypes, N->getEnumTypes().get());
-  EXPECT_EQ(RetainedTypes, N->getRetainedTypes().get());
-  EXPECT_EQ(GlobalVariables, N->getGlobalVariables().get());
-  EXPECT_EQ(ImportedEntities, N->getImportedEntities().get());
-  EXPECT_EQ(Macros, N->getMacros().get());
-  EXPECT_EQ(DWOId, N->getDWOId());
-
-  TempDICompileUnit Temp = N->clone();
-  EXPECT_EQ(dwarf::DW_TAG_compile_unit, Temp->getTag());
-  EXPECT_EQ(SourceLanguage, Temp->getSourceLanguage());
-  EXPECT_EQ(File, Temp->getFile());
-  EXPECT_EQ(Producer, Temp->getProducer());
-  EXPECT_EQ(IsOptimized, Temp->isOptimized());
-  EXPECT_EQ(Flags, Temp->getFlags());
-  EXPECT_EQ(RuntimeVersion, Temp->getRuntimeVersion());
-  EXPECT_EQ(SplitDebugFilename, Temp->getSplitDebugFilename());
-  EXPECT_EQ(EmissionKind, Temp->getEmissionKind());
-  EXPECT_EQ(EnumTypes, Temp->getEnumTypes().get());
-  EXPECT_EQ(RetainedTypes, Temp->getRetainedTypes().get());
-  EXPECT_EQ(GlobalVariables, Temp->getGlobalVariables().get());
-  EXPECT_EQ(ImportedEntities, Temp->getImportedEntities().get());
-  EXPECT_EQ(Macros, Temp->getMacros().get());
-  EXPECT_EQ(DWOId, Temp->getDWOId());
-
-  auto *TempAddress = Temp.get();
-  auto *Clone = MDNode::replaceWithPermanent(std::move(Temp));
-  EXPECT_TRUE(Clone->isDistinct());
-  EXPECT_EQ(TempAddress, Clone);
-}
-
-TEST_F(DICompileUnitTest, replaceArrays) {
-  unsigned SourceLanguage = 1;
-  DIFile *File = getFile();
-  StringRef Producer = "some producer";
-  bool IsOptimized = false;
-  StringRef Flags = "flag after flag";
-  unsigned RuntimeVersion = 2;
-  StringRef SplitDebugFilename = "another/file";
-  auto EmissionKind = DICompileUnit::FullDebug;
-  MDTuple *EnumTypes = MDTuple::getDistinct(Context, None);
-  MDTuple *RetainedTypes = MDTuple::getDistinct(Context, None);
-  MDTuple *ImportedEntities = MDTuple::getDistinct(Context, None);
-  uint64_t DWOId = 0xc0ffee;
-  auto *N = DICompileUnit::getDistinct(
-      Context, SourceLanguage, File, Producer, IsOptimized, Flags,
-      RuntimeVersion, SplitDebugFilename, EmissionKind, EnumTypes,
-      RetainedTypes, nullptr, ImportedEntities, nullptr, DWOId, true, false,
-      DICompileUnit::DebugNameTableKind::Default, false);
-
-  auto *GlobalVariables = MDTuple::getDistinct(Context, None);
-  EXPECT_EQ(nullptr, N->getGlobalVariables().get());
-  N->replaceGlobalVariables(GlobalVariables);
-  EXPECT_EQ(GlobalVariables, N->getGlobalVariables().get());
-  N->replaceGlobalVariables(nullptr);
-  EXPECT_EQ(nullptr, N->getGlobalVariables().get());
-
-  auto *Macros = MDTuple::getDistinct(Context, None);
-  EXPECT_EQ(nullptr, N->getMacros().get());
-  N->replaceMacros(Macros);
-  EXPECT_EQ(Macros, N->getMacros().get());
-  N->replaceMacros(nullptr);
-  EXPECT_EQ(nullptr, N->getMacros().get());
-}
-
-typedef MetadataTest DISubprogramTest;
-
-TEST_F(DISubprogramTest, get) {
-  DIScope *Scope = getCompositeType();
-  StringRef Name = "name";
-  StringRef LinkageName = "linkage";
-  DIFile *File = getFile();
-  unsigned Line = 2;
-  DISubroutineType *Type = getSubroutineType();
-  bool IsLocalToUnit = false;
-  bool IsDefinition = true;
-  unsigned ScopeLine = 3;
-  DIType *ContainingType = getCompositeType();
-  unsigned Virtuality = 2;
-  unsigned VirtualIndex = 5;
-  int ThisAdjustment = -3;
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(6);
-  bool IsOptimized = false;
-  MDTuple *TemplateParams = getTuple();
-  DISubprogram *Declaration = getSubprogram();
-  MDTuple *RetainedNodes = getTuple();
-  MDTuple *ThrownTypes = getTuple();
-  DICompileUnit *Unit = getUnit();
-  DISubprogram::DISPFlags SPFlags =
-      static_cast<DISubprogram::DISPFlags>(Virtuality);
-  assert(!IsLocalToUnit && IsDefinition && !IsOptimized &&
-         "bools and SPFlags have to match");
-  SPFlags |= DISubprogram::SPFlagDefinition;
-
-  auto *N = DISubprogram::get(
-      Context, Scope, Name, LinkageName, File, Line, Type, ScopeLine,
-      ContainingType, VirtualIndex, ThisAdjustment, Flags, SPFlags, Unit,
-      TemplateParams, Declaration, RetainedNodes, ThrownTypes);
-
-  EXPECT_EQ(dwarf::DW_TAG_subprogram, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(LinkageName, N->getLinkageName());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(Type, N->getType());
-  EXPECT_EQ(IsLocalToUnit, N->isLocalToUnit());
-  EXPECT_EQ(IsDefinition, N->isDefinition());
-  EXPECT_EQ(ScopeLine, N->getScopeLine());
-  EXPECT_EQ(ContainingType, N->getContainingType());
-  EXPECT_EQ(Virtuality, N->getVirtuality());
-  EXPECT_EQ(VirtualIndex, N->getVirtualIndex());
-  EXPECT_EQ(ThisAdjustment, N->getThisAdjustment());
-  EXPECT_EQ(Flags, N->getFlags());
-  EXPECT_EQ(IsOptimized, N->isOptimized());
-  EXPECT_EQ(Unit, N->getUnit());
-  EXPECT_EQ(TemplateParams, N->getTemplateParams().get());
-  EXPECT_EQ(Declaration, N->getDeclaration());
-  EXPECT_EQ(RetainedNodes, N->getRetainedNodes().get());
-  EXPECT_EQ(ThrownTypes, N->getThrownTypes().get());
-  EXPECT_EQ(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, ContainingType, VirtualIndex,
-                                 ThisAdjustment, Flags, SPFlags, Unit,
-                                 TemplateParams, Declaration, RetainedNodes,
-                                 ThrownTypes));
-
-  EXPECT_NE(N, DISubprogram::get(Context, getCompositeType(), Name, LinkageName,
-                                 File, Line, Type, ScopeLine, ContainingType,
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, "other", LinkageName, File,
-                                 Line, Type, ScopeLine, ContainingType,
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, "other", File, Line,
-                                 Type, ScopeLine, ContainingType, VirtualIndex,
-                                 ThisAdjustment, Flags, SPFlags, Unit,
-                                 TemplateParams, Declaration, RetainedNodes,
-                                 ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, getFile(),
-                                 Line, Type, ScopeLine, ContainingType,
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File,
-                                 Line + 1, Type, ScopeLine, ContainingType,
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 getSubroutineType(), ScopeLine, ContainingType,
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(
-                   Context, Scope, Name, LinkageName, File, Line, Type,
-                   ScopeLine, ContainingType, VirtualIndex, ThisAdjustment,
-                   Flags, SPFlags ^ DISubprogram::SPFlagLocalToUnit, Unit,
-                   TemplateParams, Declaration, RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(
-                   Context, Scope, Name, LinkageName, File, Line, Type,
-                   ScopeLine, ContainingType, VirtualIndex, ThisAdjustment,
-                   Flags, SPFlags ^ DISubprogram::SPFlagDefinition, Unit,
-                   TemplateParams, Declaration, RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine + 1, ContainingType,
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, getCompositeType(),
-                                 VirtualIndex, ThisAdjustment, Flags, SPFlags,
-                                 Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(
-                   Context, Scope, Name, LinkageName, File, Line, Type,
-                   ScopeLine, ContainingType, VirtualIndex, ThisAdjustment,
-                   Flags, SPFlags ^ DISubprogram::SPFlagVirtual, Unit,
-                   TemplateParams, Declaration, RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, ContainingType,
-                                 VirtualIndex + 1, ThisAdjustment, Flags,
-                                 SPFlags, Unit, TemplateParams, Declaration,
-                                 RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(
-                   Context, Scope, Name, LinkageName, File, Line, Type,
-                   ScopeLine, ContainingType, VirtualIndex, ThisAdjustment,
-                   Flags, SPFlags ^ DISubprogram::SPFlagOptimized, Unit,
-                   TemplateParams, Declaration, RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, ContainingType, VirtualIndex,
-                                 ThisAdjustment, Flags, SPFlags, nullptr,
-                                 TemplateParams, Declaration, RetainedNodes,
-                                 ThrownTypes));
-  EXPECT_NE(N,
-            DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                              Type, ScopeLine, ContainingType, VirtualIndex,
-                              ThisAdjustment, Flags, SPFlags, Unit, getTuple(),
-                              Declaration, RetainedNodes, ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, ContainingType, VirtualIndex,
-                                 ThisAdjustment, Flags, SPFlags, Unit,
-                                 TemplateParams, getSubprogram(), RetainedNodes,
-                                 ThrownTypes));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, ContainingType, VirtualIndex,
-                                 ThisAdjustment, Flags, SPFlags, Unit,
-                                 TemplateParams, Declaration, getTuple()));
-  EXPECT_NE(N, DISubprogram::get(Context, Scope, Name, LinkageName, File, Line,
-                                 Type, ScopeLine, ContainingType, VirtualIndex,
-                                 ThisAdjustment, Flags, SPFlags, Unit,
-                                 TemplateParams, Declaration, RetainedNodes,
-                                 getTuple()));
-
-  TempDISubprogram Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DILexicalBlockTest;
-
-TEST_F(DILexicalBlockTest, get) {
-  DILocalScope *Scope = getSubprogram();
-  DIFile *File = getFile();
-  unsigned Line = 5;
-  unsigned Column = 8;
-
-  auto *N = DILexicalBlock::get(Context, Scope, File, Line, Column);
-
-  EXPECT_EQ(dwarf::DW_TAG_lexical_block, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(Column, N->getColumn());
-  EXPECT_EQ(N, DILexicalBlock::get(Context, Scope, File, Line, Column));
-
-  EXPECT_NE(N,
-            DILexicalBlock::get(Context, getSubprogram(), File, Line, Column));
-  EXPECT_NE(N, DILexicalBlock::get(Context, Scope, getFile(), Line, Column));
-  EXPECT_NE(N, DILexicalBlock::get(Context, Scope, File, Line + 1, Column));
-  EXPECT_NE(N, DILexicalBlock::get(Context, Scope, File, Line, Column + 1));
-
-  TempDILexicalBlock Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DILexicalBlockTest, Overflow) {
-  DISubprogram *SP = getSubprogram();
-  DIFile *F = getFile();
-  {
-    auto *LB = DILexicalBlock::get(Context, SP, F, 2, 7);
-    EXPECT_EQ(2u, LB->getLine());
-    EXPECT_EQ(7u, LB->getColumn());
-  }
-  unsigned U16 = 1u << 16;
-  {
-    auto *LB = DILexicalBlock::get(Context, SP, F, UINT32_MAX, U16 - 1);
-    EXPECT_EQ(UINT32_MAX, LB->getLine());
-    EXPECT_EQ(U16 - 1, LB->getColumn());
-  }
-  {
-    auto *LB = DILexicalBlock::get(Context, SP, F, UINT32_MAX, U16);
-    EXPECT_EQ(UINT32_MAX, LB->getLine());
-    EXPECT_EQ(0u, LB->getColumn());
-  }
-  {
-    auto *LB = DILexicalBlock::get(Context, SP, F, UINT32_MAX, U16 + 1);
-    EXPECT_EQ(UINT32_MAX, LB->getLine());
-    EXPECT_EQ(0u, LB->getColumn());
-  }
-}
-
-typedef MetadataTest DILexicalBlockFileTest;
-
-TEST_F(DILexicalBlockFileTest, get) {
-  DILocalScope *Scope = getSubprogram();
-  DIFile *File = getFile();
-  unsigned Discriminator = 5;
-
-  auto *N = DILexicalBlockFile::get(Context, Scope, File, Discriminator);
-
-  EXPECT_EQ(dwarf::DW_TAG_lexical_block, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Discriminator, N->getDiscriminator());
-  EXPECT_EQ(N, DILexicalBlockFile::get(Context, Scope, File, Discriminator));
-
-  EXPECT_NE(N, DILexicalBlockFile::get(Context, getSubprogram(), File,
-                                       Discriminator));
-  EXPECT_NE(N,
-            DILexicalBlockFile::get(Context, Scope, getFile(), Discriminator));
-  EXPECT_NE(N,
-            DILexicalBlockFile::get(Context, Scope, File, Discriminator + 1));
-
-  TempDILexicalBlockFile Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DINamespaceTest;
-
-TEST_F(DINamespaceTest, get) {
-  DIScope *Scope = getFile();
-  StringRef Name = "namespace";
-  bool ExportSymbols = true;
-
-  auto *N = DINamespace::get(Context, Scope, Name, ExportSymbols);
-
-  EXPECT_EQ(dwarf::DW_TAG_namespace, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(N, DINamespace::get(Context, Scope, Name, ExportSymbols));
-  EXPECT_NE(N, DINamespace::get(Context, getFile(), Name, ExportSymbols));
-  EXPECT_NE(N, DINamespace::get(Context, Scope, "other", ExportSymbols));
-  EXPECT_NE(N, DINamespace::get(Context, Scope, Name, !ExportSymbols));
-
-  TempDINamespace Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DIModuleTest;
-
-TEST_F(DIModuleTest, get) {
-  DIScope *Scope = getFile();
-  StringRef Name = "module";
-  StringRef ConfigMacro = "-DNDEBUG";
-  StringRef Includes = "-I.";
-  StringRef Sysroot = "/";
-
-  auto *N = DIModule::get(Context, Scope, Name, ConfigMacro, Includes, Sysroot);
-
-  EXPECT_EQ(dwarf::DW_TAG_module, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(ConfigMacro, N->getConfigurationMacros());
-  EXPECT_EQ(Includes, N->getIncludePath());
-  EXPECT_EQ(Sysroot, N->getISysRoot());
-  EXPECT_EQ(N, DIModule::get(Context, Scope, Name,
-                             ConfigMacro, Includes, Sysroot));
-  EXPECT_NE(N, DIModule::get(Context, getFile(), Name,
-                             ConfigMacro, Includes, Sysroot));
-  EXPECT_NE(N, DIModule::get(Context, Scope, "other",
-                             ConfigMacro, Includes, Sysroot));
-  EXPECT_NE(N, DIModule::get(Context, Scope, Name,
-                             "other", Includes, Sysroot));
-  EXPECT_NE(N, DIModule::get(Context, Scope, Name,
-                             ConfigMacro, "other", Sysroot));
-  EXPECT_NE(N, DIModule::get(Context, Scope, Name,
-                             ConfigMacro, Includes, "other"));
-
-  TempDIModule Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DITemplateTypeParameterTest;
-
-TEST_F(DITemplateTypeParameterTest, get) {
-  StringRef Name = "template";
-  DIType *Type = getBasicType("basic");
-
-  auto *N = DITemplateTypeParameter::get(Context, Name, Type);
-
-  EXPECT_EQ(dwarf::DW_TAG_template_type_parameter, N->getTag());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(Type, N->getType());
-  EXPECT_EQ(N, DITemplateTypeParameter::get(Context, Name, Type));
-
-  EXPECT_NE(N, DITemplateTypeParameter::get(Context, "other", Type));
-  EXPECT_NE(N,
-            DITemplateTypeParameter::get(Context, Name, getBasicType("other")));
-
-  TempDITemplateTypeParameter Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DITemplateValueParameterTest;
-
-TEST_F(DITemplateValueParameterTest, get) {
-  unsigned Tag = dwarf::DW_TAG_template_value_parameter;
-  StringRef Name = "template";
-  DIType *Type = getBasicType("basic");
-  Metadata *Value = getConstantAsMetadata();
-
-  auto *N = DITemplateValueParameter::get(Context, Tag, Name, Type, Value);
-  EXPECT_EQ(Tag, N->getTag());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(Type, N->getType());
-  EXPECT_EQ(Value, N->getValue());
-  EXPECT_EQ(N, DITemplateValueParameter::get(Context, Tag, Name, Type, Value));
-
-  EXPECT_NE(N, DITemplateValueParameter::get(
-                   Context, dwarf::DW_TAG_GNU_template_template_param, Name,
-                   Type, Value));
-  EXPECT_NE(N,
-            DITemplateValueParameter::get(Context, Tag, "other", Type, Value));
-  EXPECT_NE(N, DITemplateValueParameter::get(Context, Tag, Name,
-                                             getBasicType("other"), Value));
-  EXPECT_NE(N, DITemplateValueParameter::get(Context, Tag, Name, Type,
-                                             getConstantAsMetadata()));
-
-  TempDITemplateValueParameter Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DIGlobalVariableTest;
-
-TEST_F(DIGlobalVariableTest, get) {
-  DIScope *Scope = getSubprogram();
-  StringRef Name = "name";
-  StringRef LinkageName = "linkage";
-  DIFile *File = getFile();
-  unsigned Line = 5;
-  DIType *Type = getDerivedType();
-  bool IsLocalToUnit = false;
-  bool IsDefinition = true;
-  MDTuple *templateParams = getTuple();
-  DIDerivedType *StaticDataMemberDeclaration =
-      cast<DIDerivedType>(getDerivedType());
-
-  uint32_t AlignInBits = 8;
-
-  auto *N = DIGlobalVariable::get(
-      Context, Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
-      IsDefinition, StaticDataMemberDeclaration, templateParams, AlignInBits);
-
-  EXPECT_EQ(dwarf::DW_TAG_variable, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(LinkageName, N->getLinkageName());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(Type, N->getType());
-  EXPECT_EQ(IsLocalToUnit, N->isLocalToUnit());
-  EXPECT_EQ(IsDefinition, N->isDefinition());
-  EXPECT_EQ(StaticDataMemberDeclaration, N->getStaticDataMemberDeclaration());
-  EXPECT_EQ(templateParams, N->getTemplateParams());
-  EXPECT_EQ(AlignInBits, N->getAlignInBits());
-  EXPECT_EQ(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, Type, IsLocalToUnit, IsDefinition,
-                                     StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-
-  EXPECT_NE(N, DIGlobalVariable::get(
-                   Context, getSubprogram(), Name, LinkageName, File, Line,
-                   Type, IsLocalToUnit, IsDefinition,
-                   StaticDataMemberDeclaration, templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, "other", LinkageName, File,
-                                     Line, Type, IsLocalToUnit, IsDefinition,
-                                     StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, "other", File, Line,
-                                     Type, IsLocalToUnit, IsDefinition,
-                                     StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName,
-                                     getFile(), Line, Type, IsLocalToUnit,
-                                     IsDefinition, StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line + 1, Type, IsLocalToUnit,
-                                     IsDefinition, StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, getDerivedType(), IsLocalToUnit,
-                                     IsDefinition, StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, Type, !IsLocalToUnit, IsDefinition,
-                                     StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, Type, IsLocalToUnit, !IsDefinition,
-                                     StaticDataMemberDeclaration,
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, Type, IsLocalToUnit, IsDefinition,
-                                     cast<DIDerivedType>(getDerivedType()),
-                                     templateParams, AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, Type, IsLocalToUnit, IsDefinition,
-                                     StaticDataMemberDeclaration, nullptr,
-                                     AlignInBits));
-  EXPECT_NE(N, DIGlobalVariable::get(Context, Scope, Name, LinkageName, File,
-                                     Line, Type, IsLocalToUnit, IsDefinition,
-                                     StaticDataMemberDeclaration,
-                                     templateParams, (AlignInBits << 1)));
-
-  TempDIGlobalVariable Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DIGlobalVariableExpressionTest;
-
-TEST_F(DIGlobalVariableExpressionTest, get) {
-  DIScope *Scope = getSubprogram();
-  StringRef Name = "name";
-  StringRef LinkageName = "linkage";
-  DIFile *File = getFile();
-  unsigned Line = 5;
-  DIType *Type = getDerivedType();
-  bool IsLocalToUnit = false;
-  bool IsDefinition = true;
-  MDTuple *templateParams = getTuple();
-  auto *Expr = DIExpression::get(Context, {1, 2});
-  auto *Expr2 = DIExpression::get(Context, {1, 2, 3});
-  DIDerivedType *StaticDataMemberDeclaration =
-      cast<DIDerivedType>(getDerivedType());
-  uint32_t AlignInBits = 8;
-
-  auto *Var = DIGlobalVariable::get(
-      Context, Scope, Name, LinkageName, File, Line, Type, IsLocalToUnit,
-      IsDefinition, StaticDataMemberDeclaration, templateParams, AlignInBits);
-  auto *Var2 = DIGlobalVariable::get(
-      Context, Scope, "other", LinkageName, File, Line, Type, IsLocalToUnit,
-      IsDefinition, StaticDataMemberDeclaration, templateParams, AlignInBits);
-  auto *N = DIGlobalVariableExpression::get(Context, Var, Expr);
-
-  EXPECT_EQ(Var, N->getVariable());
-  EXPECT_EQ(Expr, N->getExpression());
-  EXPECT_EQ(N, DIGlobalVariableExpression::get(Context, Var, Expr));
-  EXPECT_NE(N, DIGlobalVariableExpression::get(Context, Var2, Expr));
-  EXPECT_NE(N, DIGlobalVariableExpression::get(Context, Var, Expr2));
-
-  TempDIGlobalVariableExpression Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DILocalVariableTest;
-
-TEST_F(DILocalVariableTest, get) {
-  DILocalScope *Scope = getSubprogram();
-  StringRef Name = "name";
-  DIFile *File = getFile();
-  unsigned Line = 5;
-  DIType *Type = getDerivedType();
-  unsigned Arg = 6;
-  DINode::DIFlags Flags = static_cast<DINode::DIFlags>(7);
-  uint32_t AlignInBits = 8;
-
-  auto *N =
-      DILocalVariable::get(Context, Scope, Name, File, Line, Type, Arg, Flags,
-                           AlignInBits);
-  EXPECT_TRUE(N->isParameter());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(Type, N->getType());
-  EXPECT_EQ(Arg, N->getArg());
-  EXPECT_EQ(Flags, N->getFlags());
-  EXPECT_EQ(AlignInBits, N->getAlignInBits());
-  EXPECT_EQ(N, DILocalVariable::get(Context, Scope, Name, File, Line, Type, Arg,
-                                    Flags, AlignInBits));
-
-  EXPECT_FALSE(
-      DILocalVariable::get(Context, Scope, Name, File, Line, Type, 0, Flags,
-                           AlignInBits)->isParameter());
-  EXPECT_NE(N, DILocalVariable::get(Context, getSubprogram(), Name, File, Line,
-                                    Type, Arg, Flags, AlignInBits));
-  EXPECT_NE(N, DILocalVariable::get(Context, Scope, "other", File, Line, Type,
-                                    Arg, Flags, AlignInBits));
-  EXPECT_NE(N, DILocalVariable::get(Context, Scope, Name, getFile(), Line, Type,
-                                    Arg, Flags, AlignInBits));
-  EXPECT_NE(N, DILocalVariable::get(Context, Scope, Name, File, Line + 1, Type,
-                                    Arg, Flags, AlignInBits));
-  EXPECT_NE(N, DILocalVariable::get(Context, Scope, Name, File, Line,
-                                    getDerivedType(), Arg, Flags, AlignInBits));
-  EXPECT_NE(N, DILocalVariable::get(Context, Scope, Name, File, Line, Type,
-                                    Arg + 1, Flags, AlignInBits));
-  EXPECT_NE(N, DILocalVariable::get(Context, Scope, Name, File, Line, Type,
-                                    Arg, Flags, (AlignInBits << 1)));
-
-  TempDILocalVariable Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-TEST_F(DILocalVariableTest, getArg256) {
-  EXPECT_EQ(255u, DILocalVariable::get(Context, getSubprogram(), "", getFile(),
-                                       0, nullptr, 255, DINode::FlagZero, 0)
-                      ->getArg());
-  EXPECT_EQ(256u, DILocalVariable::get(Context, getSubprogram(), "", getFile(),
-                                       0, nullptr, 256, DINode::FlagZero, 0)
-                      ->getArg());
-  EXPECT_EQ(257u, DILocalVariable::get(Context, getSubprogram(), "", getFile(),
-                                       0, nullptr, 257, DINode::FlagZero, 0)
-                      ->getArg());
-  unsigned Max = UINT16_MAX;
-  EXPECT_EQ(Max, DILocalVariable::get(Context, getSubprogram(), "", getFile(),
-                                      0, nullptr, Max, DINode::FlagZero, 0)
-                     ->getArg());
-}
-
-typedef MetadataTest DIExpressionTest;
-
-TEST_F(DIExpressionTest, get) {
-  uint64_t Elements[] = {2, 6, 9, 78, 0};
-  auto *N = DIExpression::get(Context, Elements);
-  EXPECT_EQ(makeArrayRef(Elements), N->getElements());
-  EXPECT_EQ(N, DIExpression::get(Context, Elements));
-
-  EXPECT_EQ(5u, N->getNumElements());
-  EXPECT_EQ(2u, N->getElement(0));
-  EXPECT_EQ(6u, N->getElement(1));
-  EXPECT_EQ(9u, N->getElement(2));
-  EXPECT_EQ(78u, N->getElement(3));
-  EXPECT_EQ(0u, N->getElement(4));
-
-  TempDIExpression Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-
-  // Test DIExpression::prepend().
-  uint64_t Elts0[] = {dwarf::DW_OP_LLVM_fragment, 0, 32};
-  auto *N0 = DIExpression::get(Context, Elts0);
-  auto *N0WithPrependedOps = DIExpression::prepend(N0, true, 64, true, true);
-  uint64_t Elts1[] = {dwarf::DW_OP_deref,
-                      dwarf::DW_OP_plus_uconst, 64,
-                      dwarf::DW_OP_deref,
-                      dwarf::DW_OP_stack_value,
-                      dwarf::DW_OP_LLVM_fragment, 0, 32};
-  auto *N1 = DIExpression::get(Context, Elts1);
-  EXPECT_EQ(N0WithPrependedOps, N1);
-
-  // Test DIExpression::append().
-  uint64_t Elts2[] = {dwarf::DW_OP_deref, dwarf::DW_OP_plus_uconst, 64,
-                      dwarf::DW_OP_deref, dwarf::DW_OP_stack_value};
-  auto *N2 = DIExpression::append(N0, Elts2);
-  EXPECT_EQ(N0WithPrependedOps, N2);
-}
-
-TEST_F(DIExpressionTest, isValid) {
-#define EXPECT_VALID(...)                                                      \
-  do {                                                                         \
-    uint64_t Elements[] = {__VA_ARGS__};                                       \
-    EXPECT_TRUE(DIExpression::get(Context, Elements)->isValid());              \
-  } while (false)
-#define EXPECT_INVALID(...)                                                    \
-  do {                                                                         \
-    uint64_t Elements[] = {__VA_ARGS__};                                       \
-    EXPECT_FALSE(DIExpression::get(Context, Elements)->isValid());             \
-  } while (false)
-
-  // Empty expression should be valid.
-  EXPECT_TRUE(DIExpression::get(Context, None));
-
-  // Valid constructions.
-  EXPECT_VALID(dwarf::DW_OP_plus_uconst, 6);
-  EXPECT_VALID(dwarf::DW_OP_constu, 6, dwarf::DW_OP_plus);
-  EXPECT_VALID(dwarf::DW_OP_deref);
-  EXPECT_VALID(dwarf::DW_OP_LLVM_fragment, 3, 7);
-  EXPECT_VALID(dwarf::DW_OP_plus_uconst, 6, dwarf::DW_OP_deref);
-  EXPECT_VALID(dwarf::DW_OP_deref, dwarf::DW_OP_plus_uconst, 6);
-  EXPECT_VALID(dwarf::DW_OP_deref, dwarf::DW_OP_LLVM_fragment, 3, 7);
-  EXPECT_VALID(dwarf::DW_OP_deref, dwarf::DW_OP_plus_uconst, 6,
-               dwarf::DW_OP_LLVM_fragment, 3, 7);
-
-  // Invalid constructions.
-  EXPECT_INVALID(~0u);
-  EXPECT_INVALID(dwarf::DW_OP_plus, 0);
-  EXPECT_INVALID(dwarf::DW_OP_plus_uconst);
-  EXPECT_INVALID(dwarf::DW_OP_LLVM_fragment);
-  EXPECT_INVALID(dwarf::DW_OP_LLVM_fragment, 3);
-  EXPECT_INVALID(dwarf::DW_OP_LLVM_fragment, 3, 7, dwarf::DW_OP_plus_uconst, 3);
-  EXPECT_INVALID(dwarf::DW_OP_LLVM_fragment, 3, 7, dwarf::DW_OP_deref);
-
-#undef EXPECT_VALID
-#undef EXPECT_INVALID
-}
-
-typedef MetadataTest DIObjCPropertyTest;
-
-TEST_F(DIObjCPropertyTest, get) {
-  StringRef Name = "name";
-  DIFile *File = getFile();
-  unsigned Line = 5;
-  StringRef GetterName = "getter";
-  StringRef SetterName = "setter";
-  unsigned Attributes = 7;
-  DIType *Type = getBasicType("basic");
-
-  auto *N = DIObjCProperty::get(Context, Name, File, Line, GetterName,
-                                SetterName, Attributes, Type);
-
-  EXPECT_EQ(dwarf::DW_TAG_APPLE_property, N->getTag());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(GetterName, N->getGetterName());
-  EXPECT_EQ(SetterName, N->getSetterName());
-  EXPECT_EQ(Attributes, N->getAttributes());
-  EXPECT_EQ(Type, N->getType());
-  EXPECT_EQ(N, DIObjCProperty::get(Context, Name, File, Line, GetterName,
-                                   SetterName, Attributes, Type));
-
-  EXPECT_NE(N, DIObjCProperty::get(Context, "other", File, Line, GetterName,
-                                   SetterName, Attributes, Type));
-  EXPECT_NE(N, DIObjCProperty::get(Context, Name, getFile(), Line, GetterName,
-                                   SetterName, Attributes, Type));
-  EXPECT_NE(N, DIObjCProperty::get(Context, Name, File, Line + 1, GetterName,
-                                   SetterName, Attributes, Type));
-  EXPECT_NE(N, DIObjCProperty::get(Context, Name, File, Line, "other",
-                                   SetterName, Attributes, Type));
-  EXPECT_NE(N, DIObjCProperty::get(Context, Name, File, Line, GetterName,
-                                   "other", Attributes, Type));
-  EXPECT_NE(N, DIObjCProperty::get(Context, Name, File, Line, GetterName,
-                                   SetterName, Attributes + 1, Type));
-  EXPECT_NE(N, DIObjCProperty::get(Context, Name, File, Line, GetterName,
-                                   SetterName, Attributes,
-                                   getBasicType("other")));
-
-  TempDIObjCProperty Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest DIImportedEntityTest;
-
-TEST_F(DIImportedEntityTest, get) {
-  unsigned Tag = dwarf::DW_TAG_imported_module;
-  DIScope *Scope = getSubprogram();
-  DINode *Entity = getCompositeType();
-  DIFile *File = getFile();
-  unsigned Line = 5;
-  StringRef Name = "name";
-
-  auto *N =
-      DIImportedEntity::get(Context, Tag, Scope, Entity, File, Line, Name);
-
-  EXPECT_EQ(Tag, N->getTag());
-  EXPECT_EQ(Scope, N->getScope());
-  EXPECT_EQ(Entity, N->getEntity());
-  EXPECT_EQ(File, N->getFile());
-  EXPECT_EQ(Line, N->getLine());
-  EXPECT_EQ(Name, N->getName());
-  EXPECT_EQ(
-      N, DIImportedEntity::get(Context, Tag, Scope, Entity, File, Line, Name));
-
-  EXPECT_NE(N,
-            DIImportedEntity::get(Context, dwarf::DW_TAG_imported_declaration,
-                                  Scope, Entity, File, Line, Name));
-  EXPECT_NE(N, DIImportedEntity::get(Context, Tag, getSubprogram(), Entity,
-                                     File, Line, Name));
-  EXPECT_NE(N, DIImportedEntity::get(Context, Tag, Scope, getCompositeType(),
-                                     File, Line, Name));
-  EXPECT_NE(N, DIImportedEntity::get(Context, Tag, Scope, Entity, nullptr, Line,
-                                     Name));
-  EXPECT_NE(N, DIImportedEntity::get(Context, Tag, Scope, Entity, File,
-                                     Line + 1, Name));
-  EXPECT_NE(N, DIImportedEntity::get(Context, Tag, Scope, Entity, File, Line,
-                                     "other"));
-
-  TempDIImportedEntity Temp = N->clone();
-  EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
-}
-
-typedef MetadataTest MetadataAsValueTest;
-
-TEST_F(MetadataAsValueTest, MDNode) {
-  MDNode *N = MDNode::get(Context, None);
-  auto *V = MetadataAsValue::get(Context, N);
-  EXPECT_TRUE(V->getType()->isMetadataTy());
-  EXPECT_EQ(N, V->getMetadata());
-
-  auto *V2 = MetadataAsValue::get(Context, N);
-  EXPECT_EQ(V, V2);
-}
-
-TEST_F(MetadataAsValueTest, MDNodeMDNode) {
-  MDNode *N = MDNode::get(Context, None);
-  Metadata *Ops[] = {N};
-  MDNode *N2 = MDNode::get(Context, Ops);
-  auto *V = MetadataAsValue::get(Context, N2);
-  EXPECT_TRUE(V->getType()->isMetadataTy());
-  EXPECT_EQ(N2, V->getMetadata());
-
-  auto *V2 = MetadataAsValue::get(Context, N2);
-  EXPECT_EQ(V, V2);
-
-  auto *V3 = MetadataAsValue::get(Context, N);
-  EXPECT_TRUE(V3->getType()->isMetadataTy());
-  EXPECT_NE(V, V3);
-  EXPECT_EQ(N, V3->getMetadata());
-}
-
-TEST_F(MetadataAsValueTest, MDNodeConstant) {
-  auto *C = ConstantInt::getTrue(Context);
-  auto *MD = ConstantAsMetadata::get(C);
-  Metadata *Ops[] = {MD};
-  auto *N = MDNode::get(Context, Ops);
-
-  auto *V = MetadataAsValue::get(Context, MD);
-  EXPECT_TRUE(V->getType()->isMetadataTy());
-  EXPECT_EQ(MD, V->getMetadata());
-
-  auto *V2 = MetadataAsValue::get(Context, N);
-  EXPECT_EQ(MD, V2->getMetadata());
-  EXPECT_EQ(V, V2);
-}
-
-typedef MetadataTest ValueAsMetadataTest;
-
-TEST_F(ValueAsMetadataTest, UpdatesOnRAUW) {
-  Type *Ty = Type::getInt1PtrTy(Context);
-  std::unique_ptr<GlobalVariable> GV0(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  auto *MD = ValueAsMetadata::get(GV0.get());
-  EXPECT_TRUE(MD->getValue() == GV0.get());
-  ASSERT_TRUE(GV0->use_empty());
-
-  std::unique_ptr<GlobalVariable> GV1(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  GV0->replaceAllUsesWith(GV1.get());
-  EXPECT_TRUE(MD->getValue() == GV1.get());
-}
-
-TEST_F(ValueAsMetadataTest, TempTempReplacement) {
-  // Create a constant.
-  ConstantAsMetadata *CI =
-      ConstantAsMetadata::get(ConstantInt::get(Context, APInt(8, 0)));
-
-  auto Temp1 = MDTuple::getTemporary(Context, None);
-  auto Temp2 = MDTuple::getTemporary(Context, {CI});
-  auto *N = MDTuple::get(Context, {Temp1.get()});
-
-  // Test replacing a temporary node with another temporary node.
-  Temp1->replaceAllUsesWith(Temp2.get());
-  EXPECT_EQ(N->getOperand(0), Temp2.get());
-
-  // Clean up Temp2 for teardown.
-  Temp2->replaceAllUsesWith(nullptr);
-}
-
-TEST_F(ValueAsMetadataTest, CollidingDoubleUpdates) {
-  // Create a constant.
-  ConstantAsMetadata *CI =
-      ConstantAsMetadata::get(ConstantInt::get(Context, APInt(8, 0)));
-
-  // Create a temporary to prevent nodes from resolving.
-  auto Temp = MDTuple::getTemporary(Context, None);
-
-  // When the first operand of N1 gets reset to nullptr, it'll collide with N2.
-  Metadata *Ops1[] = {CI, CI, Temp.get()};
-  Metadata *Ops2[] = {nullptr, CI, Temp.get()};
-
-  auto *N1 = MDTuple::get(Context, Ops1);
-  auto *N2 = MDTuple::get(Context, Ops2);
-  ASSERT_NE(N1, N2);
-
-  // Tell metadata that the constant is getting deleted.
-  //
-  // After this, N1 will be invalid, so don't touch it.
-  ValueAsMetadata::handleDeletion(CI->getValue());
-  EXPECT_EQ(nullptr, N2->getOperand(0));
-  EXPECT_EQ(nullptr, N2->getOperand(1));
-  EXPECT_EQ(Temp.get(), N2->getOperand(2));
-
-  // Clean up Temp for teardown.
-  Temp->replaceAllUsesWith(nullptr);
-}
-
-typedef MetadataTest TrackingMDRefTest;
-
-TEST_F(TrackingMDRefTest, UpdatesOnRAUW) {
-  Type *Ty = Type::getInt1PtrTy(Context);
-  std::unique_ptr<GlobalVariable> GV0(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  TypedTrackingMDRef<ValueAsMetadata> MD(ValueAsMetadata::get(GV0.get()));
-  EXPECT_TRUE(MD->getValue() == GV0.get());
-  ASSERT_TRUE(GV0->use_empty());
-
-  std::unique_ptr<GlobalVariable> GV1(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  GV0->replaceAllUsesWith(GV1.get());
-  EXPECT_TRUE(MD->getValue() == GV1.get());
-
-  // Reset it, so we don't inadvertently test deletion.
-  MD.reset();
-}
-
-TEST_F(TrackingMDRefTest, UpdatesOnDeletion) {
-  Type *Ty = Type::getInt1PtrTy(Context);
-  std::unique_ptr<GlobalVariable> GV(
-      new GlobalVariable(Ty, false, GlobalValue::ExternalLinkage));
-  TypedTrackingMDRef<ValueAsMetadata> MD(ValueAsMetadata::get(GV.get()));
-  EXPECT_TRUE(MD->getValue() == GV.get());
-  ASSERT_TRUE(GV->use_empty());
-
-  GV.reset();
-  EXPECT_TRUE(!MD);
-}
-
-TEST(NamedMDNodeTest, Search) {
-  LLVMContext Context;
-  ConstantAsMetadata *C =
-      ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(Context), 1));
-  ConstantAsMetadata *C2 =
-      ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(Context), 2));
-
-  Metadata *const V = C;
-  Metadata *const V2 = C2;
-  MDNode *n = MDNode::get(Context, V);
-  MDNode *n2 = MDNode::get(Context, V2);
-
-  Module M("MyModule", Context);
-  const char *Name = "llvm.NMD1";
-  NamedMDNode *NMD = M.getOrInsertNamedMetadata(Name);
-  NMD->addOperand(n);
-  NMD->addOperand(n2);
-
-  std::string Str;
-  raw_string_ostream oss(Str);
-  NMD->print(oss);
-  EXPECT_STREQ("!llvm.NMD1 = !{!0, !1}\n",
-               oss.str().c_str());
-}
-
-typedef MetadataTest FunctionAttachmentTest;
-TEST_F(FunctionAttachmentTest, setMetadata) {
-  Function *F = getFunction("foo");
-  ASSERT_FALSE(F->hasMetadata());
-  EXPECT_EQ(nullptr, F->getMetadata(LLVMContext::MD_dbg));
-  EXPECT_EQ(nullptr, F->getMetadata("dbg"));
-  EXPECT_EQ(nullptr, F->getMetadata("other"));
-
-  DISubprogram *SP1 = getSubprogram();
-  DISubprogram *SP2 = getSubprogram();
-  ASSERT_NE(SP1, SP2);
-
-  F->setMetadata("dbg", SP1);
-  EXPECT_TRUE(F->hasMetadata());
-  EXPECT_EQ(SP1, F->getMetadata(LLVMContext::MD_dbg));
-  EXPECT_EQ(SP1, F->getMetadata("dbg"));
-  EXPECT_EQ(nullptr, F->getMetadata("other"));
-
-  F->setMetadata(LLVMContext::MD_dbg, SP2);
-  EXPECT_TRUE(F->hasMetadata());
-  EXPECT_EQ(SP2, F->getMetadata(LLVMContext::MD_dbg));
-  EXPECT_EQ(SP2, F->getMetadata("dbg"));
-  EXPECT_EQ(nullptr, F->getMetadata("other"));
-
-  F->setMetadata("dbg", nullptr);
-  EXPECT_FALSE(F->hasMetadata());
-  EXPECT_EQ(nullptr, F->getMetadata(LLVMContext::MD_dbg));
-  EXPECT_EQ(nullptr, F->getMetadata("dbg"));
-  EXPECT_EQ(nullptr, F->getMetadata("other"));
-
-  MDTuple *T1 = getTuple();
-  MDTuple *T2 = getTuple();
-  ASSERT_NE(T1, T2);
-
-  F->setMetadata("other1", T1);
-  F->setMetadata("other2", T2);
-  EXPECT_TRUE(F->hasMetadata());
-  EXPECT_EQ(T1, F->getMetadata("other1"));
-  EXPECT_EQ(T2, F->getMetadata("other2"));
-  EXPECT_EQ(nullptr, F->getMetadata("dbg"));
-
-  F->setMetadata("other1", T2);
-  F->setMetadata("other2", T1);
-  EXPECT_EQ(T2, F->getMetadata("other1"));
-  EXPECT_EQ(T1, F->getMetadata("other2"));
-
-  F->setMetadata("other1", nullptr);
-  F->setMetadata("other2", nullptr);
-  EXPECT_FALSE(F->hasMetadata());
-  EXPECT_EQ(nullptr, F->getMetadata("other1"));
-  EXPECT_EQ(nullptr, F->getMetadata("other2"));
-}
-
-TEST_F(FunctionAttachmentTest, getAll) {
-  Function *F = getFunction("foo");
-
-  MDTuple *T1 = getTuple();
-  MDTuple *T2 = getTuple();
-  MDTuple *P = getTuple();
-  DISubprogram *SP = getSubprogram();
-
-  F->setMetadata("other1", T2);
-  F->setMetadata(LLVMContext::MD_dbg, SP);
-  F->setMetadata("other2", T1);
-  F->setMetadata(LLVMContext::MD_prof, P);
-  F->setMetadata("other2", T2);
-  F->setMetadata("other1", T1);
-
-  SmallVector<std::pair<unsigned, MDNode *>, 4> MDs;
-  F->getAllMetadata(MDs);
-  ASSERT_EQ(4u, MDs.size());
-  EXPECT_EQ(LLVMContext::MD_dbg, MDs[0].first);
-  EXPECT_EQ(LLVMContext::MD_prof, MDs[1].first);
-  EXPECT_EQ(Context.getMDKindID("other1"), MDs[2].first);
-  EXPECT_EQ(Context.getMDKindID("other2"), MDs[3].first);
-  EXPECT_EQ(SP, MDs[0].second);
-  EXPECT_EQ(P, MDs[1].second);
-  EXPECT_EQ(T1, MDs[2].second);
-  EXPECT_EQ(T2, MDs[3].second);
-}
-
-TEST_F(FunctionAttachmentTest, Verifier) {
-  Function *F = getFunction("foo");
-  F->setMetadata("attach", getTuple());
-  F->setIsMaterializable(true);
-
-  // Confirm this is materializable.
-  ASSERT_TRUE(F->isMaterializable());
-
-  // Materializable functions cannot have metadata attachments.
-  EXPECT_TRUE(verifyFunction(*F));
-
-  // Function declarations can.
-  F->setIsMaterializable(false);
-  EXPECT_FALSE(verifyModule(*F->getParent()));
-  EXPECT_FALSE(verifyFunction(*F));
-
-  // So can definitions.
-  (void)new UnreachableInst(Context, BasicBlock::Create(Context, "bb", F));
-  EXPECT_FALSE(verifyModule(*F->getParent()));
-  EXPECT_FALSE(verifyFunction(*F));
-}
-
-TEST_F(FunctionAttachmentTest, EntryCount) {
-  Function *F = getFunction("foo");
-  EXPECT_FALSE(F->getEntryCount().hasValue());
-  F->setEntryCount(12304, Function::PCT_Real);
-  auto Count = F->getEntryCount();
-  EXPECT_TRUE(Count.hasValue());
-  EXPECT_EQ(12304u, Count.getCount());
-  EXPECT_EQ(Function::PCT_Real, Count.getType());
-
-  // Repeat the same for synthetic counts.
-  F = getFunction("bar");
-  EXPECT_FALSE(F->getEntryCount().hasValue());
-  F->setEntryCount(123, Function::PCT_Synthetic);
-  Count = F->getEntryCount();
-  EXPECT_TRUE(Count.hasValue());
-  EXPECT_EQ(123u, Count.getCount());
-  EXPECT_EQ(Function::PCT_Synthetic, Count.getType());
-}
-
-TEST_F(FunctionAttachmentTest, SubprogramAttachment) {
-  Function *F = getFunction("foo");
-  DISubprogram *SP = getSubprogram();
-  F->setSubprogram(SP);
-
-  // Note that the static_cast confirms that F->getSubprogram() actually
-  // returns an DISubprogram.
-  EXPECT_EQ(SP, static_cast<DISubprogram *>(F->getSubprogram()));
-  EXPECT_EQ(SP, F->getMetadata("dbg"));
-  EXPECT_EQ(SP, F->getMetadata(LLVMContext::MD_dbg));
-}
-
-typedef MetadataTest DistinctMDOperandPlaceholderTest;
-TEST_F(DistinctMDOperandPlaceholderTest, getID) {
-  EXPECT_EQ(7u, DistinctMDOperandPlaceholder(7).getID());
-}
-
-TEST_F(DistinctMDOperandPlaceholderTest, replaceUseWith) {
-  // Set up some placeholders.
-  DistinctMDOperandPlaceholder PH0(7);
-  DistinctMDOperandPlaceholder PH1(3);
-  DistinctMDOperandPlaceholder PH2(0);
-  Metadata *Ops[] = {&PH0, &PH1, &PH2};
-  auto *D = MDTuple::getDistinct(Context, Ops);
-  ASSERT_EQ(&PH0, D->getOperand(0));
-  ASSERT_EQ(&PH1, D->getOperand(1));
-  ASSERT_EQ(&PH2, D->getOperand(2));
-
-  // Replace them.
-  auto *N0 = MDTuple::get(Context, None);
-  auto *N1 = MDTuple::get(Context, N0);
-  PH0.replaceUseWith(N0);
-  PH1.replaceUseWith(N1);
-  PH2.replaceUseWith(nullptr);
-  EXPECT_EQ(N0, D->getOperand(0));
-  EXPECT_EQ(N1, D->getOperand(1));
-  EXPECT_EQ(nullptr, D->getOperand(2));
-}
-
-TEST_F(DistinctMDOperandPlaceholderTest, replaceUseWithNoUser) {
-  // There is no user, but we can still call replace.
-  DistinctMDOperandPlaceholder(7).replaceUseWith(MDTuple::get(Context, None));
-}
-
-// Test various assertions in metadata tracking. Don't run these tests if gtest
-// will use SEH to recover from them. Two of these tests get halfway through
-// inserting metadata into DenseMaps for tracking purposes, and then they
-// assert, and we attempt to destroy an LLVMContext with broken invariants,
-// leading to infinite loops.
-#if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG) && !defined(GTEST_HAS_SEH)
-TEST_F(DistinctMDOperandPlaceholderTest, MetadataAsValue) {
-  // This shouldn't crash.
-  DistinctMDOperandPlaceholder PH(7);
-  EXPECT_DEATH(MetadataAsValue::get(Context, &PH),
-               "Unexpected callback to owner");
-}
-
-TEST_F(DistinctMDOperandPlaceholderTest, UniquedMDNode) {
-  // This shouldn't crash.
-  DistinctMDOperandPlaceholder PH(7);
-  EXPECT_DEATH(MDTuple::get(Context, &PH), "Unexpected callback to owner");
-}
-
-TEST_F(DistinctMDOperandPlaceholderTest, SecondDistinctMDNode) {
-  // This shouldn't crash.
-  DistinctMDOperandPlaceholder PH(7);
-  MDTuple::getDistinct(Context, &PH);
-  EXPECT_DEATH(MDTuple::getDistinct(Context, &PH),
-               "Placeholders can only be used once");
-}
-
-TEST_F(DistinctMDOperandPlaceholderTest, TrackingMDRefAndDistinctMDNode) {
-  // TrackingMDRef doesn't install an owner callback, so it can't be detected
-  // as an invalid use.  However, using a placeholder in a TrackingMDRef *and*
-  // a distinct node isn't possible and we should assert.
-  //
-  // (There's no positive test for using TrackingMDRef because it's not a
-  // useful thing to do.)
-  {
-    DistinctMDOperandPlaceholder PH(7);
-    MDTuple::getDistinct(Context, &PH);
-    EXPECT_DEATH(TrackingMDRef Ref(&PH), "Placeholders can only be used once");
-  }
-  {
-    DistinctMDOperandPlaceholder PH(7);
-    TrackingMDRef Ref(&PH);
-    EXPECT_DEATH(MDTuple::getDistinct(Context, &PH),
-                 "Placeholders can only be used once");
-  }
-}
-#endif
-
-} // end namespace