1 files changed, 0 insertions, 408 deletions
diff --git a/unittests/Support/ValueHandleTest.cpp b/unittests/Support/ValueHandleTest.cpp
deleted file mode 100644
index 05aafa2d05..0000000000
--- a/unittests/Support/ValueHandleTest.cpp
+++ /dev/null
@@ -1,408 +0,0 @@
-//===- llvm/unittest/Support/ValueHandleTest.cpp - ValueHandle tests --------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/ValueHandle.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/LLVMContext.h"
-#include "gtest/gtest.h"
-#include <memory>
-
-using namespace llvm;
-
-namespace {
-
-class ValueHandle : public testing::Test {
-protected:
-  Constant *ConstantV;
-  std::auto_ptr<BitCastInst> BitcastV;
-
-  ValueHandle() :
-    ConstantV(ConstantInt::get(Type::getInt32Ty(getGlobalContext()), 0)),
-    BitcastV(new BitCastInst(ConstantV, Type::getInt32Ty(getGlobalContext()))) {
-  }
-};
-
-class ConcreteCallbackVH : public CallbackVH {
-public:
-  ConcreteCallbackVH(Value *V) : CallbackVH(V) {}
-};
-
-TEST_F(ValueHandle, WeakVH_BasicOperation) {
-  WeakVH WVH(BitcastV.get());
-  EXPECT_EQ(BitcastV.get(), WVH);
-  WVH = ConstantV;
-  EXPECT_EQ(ConstantV, WVH);
-
-  // Make sure I can call a method on the underlying Value.  It
-  // doesn't matter which method.
-  EXPECT_EQ(Type::getInt32Ty(getGlobalContext()), WVH->getType());
-  EXPECT_EQ(Type::getInt32Ty(getGlobalContext()), (*WVH).getType());
-}
-
-TEST_F(ValueHandle, WeakVH_Comparisons) {
-  WeakVH BitcastWVH(BitcastV.get());
-  WeakVH ConstantWVH(ConstantV);
-
-  EXPECT_TRUE(BitcastWVH == BitcastWVH);
-  EXPECT_TRUE(BitcastV.get() == BitcastWVH);
-  EXPECT_TRUE(BitcastWVH == BitcastV.get());
-  EXPECT_FALSE(BitcastWVH == ConstantWVH);
-
-  EXPECT_TRUE(BitcastWVH != ConstantWVH);
-  EXPECT_TRUE(BitcastV.get() != ConstantWVH);
-  EXPECT_TRUE(BitcastWVH != ConstantV);
-  EXPECT_FALSE(BitcastWVH != BitcastWVH);
-
-  // Cast to Value* so comparisons work.
-  Value *BV = BitcastV.get();
-  Value *CV = ConstantV;
-  EXPECT_EQ(BV < CV, BitcastWVH < ConstantWVH);
-  EXPECT_EQ(BV <= CV, BitcastWVH <= ConstantWVH);
-  EXPECT_EQ(BV > CV, BitcastWVH > ConstantWVH);
-  EXPECT_EQ(BV >= CV, BitcastWVH >= ConstantWVH);
-
-  EXPECT_EQ(BV < CV, BitcastV.get() < ConstantWVH);
-  EXPECT_EQ(BV <= CV, BitcastV.get() <= ConstantWVH);
-  EXPECT_EQ(BV > CV, BitcastV.get() > ConstantWVH);
-  EXPECT_EQ(BV >= CV, BitcastV.get() >= ConstantWVH);
-
-  EXPECT_EQ(BV < CV, BitcastWVH < ConstantV);
-  EXPECT_EQ(BV <= CV, BitcastWVH <= ConstantV);
-  EXPECT_EQ(BV > CV, BitcastWVH > ConstantV);
-  EXPECT_EQ(BV >= CV, BitcastWVH >= ConstantV);
-}
-
-TEST_F(ValueHandle, WeakVH_FollowsRAUW) {
-  WeakVH WVH(BitcastV.get());
-  WeakVH WVH_Copy(WVH);
-  WeakVH WVH_Recreated(BitcastV.get());
-  BitcastV->replaceAllUsesWith(ConstantV);
-  EXPECT_EQ(ConstantV, WVH);
-  EXPECT_EQ(ConstantV, WVH_Copy);
-  EXPECT_EQ(ConstantV, WVH_Recreated);
-}
-
-TEST_F(ValueHandle, WeakVH_NullOnDeletion) {
-  WeakVH WVH(BitcastV.get());
-  WeakVH WVH_Copy(WVH);
-  WeakVH WVH_Recreated(BitcastV.get());
-  BitcastV.reset();
-  Value *null_value = NULL;
-  EXPECT_EQ(null_value, WVH);
-  EXPECT_EQ(null_value, WVH_Copy);
-  EXPECT_EQ(null_value, WVH_Recreated);
-}
-
-
-TEST_F(ValueHandle, AssertingVH_BasicOperation) {
-  AssertingVH<CastInst> AVH(BitcastV.get());
-  CastInst *implicit_to_exact_type = AVH;
-  (void)implicit_to_exact_type;  // Avoid warning.
-
-  AssertingVH<Value> GenericAVH(BitcastV.get());
-  EXPECT_EQ(BitcastV.get(), GenericAVH);
-  GenericAVH = ConstantV;
-  EXPECT_EQ(ConstantV, GenericAVH);
-
-  // Make sure I can call a method on the underlying CastInst.  It
-  // doesn't matter which method.
-  EXPECT_FALSE(AVH->mayWriteToMemory());
-  EXPECT_FALSE((*AVH).mayWriteToMemory());
-}
-
-TEST_F(ValueHandle, AssertingVH_Const) {
-  const CastInst *ConstBitcast = BitcastV.get();
-  AssertingVH<const CastInst> AVH(ConstBitcast);
-  const CastInst *implicit_to_exact_type = AVH;
-  (void)implicit_to_exact_type;  // Avoid warning.
-}
-
-TEST_F(ValueHandle, AssertingVH_Comparisons) {
-  AssertingVH<Value> BitcastAVH(BitcastV.get());
-  AssertingVH<Value> ConstantAVH(ConstantV);
-
-  EXPECT_TRUE(BitcastAVH == BitcastAVH);
-  EXPECT_TRUE(BitcastV.get() == BitcastAVH);
-  EXPECT_TRUE(BitcastAVH == BitcastV.get());
-  EXPECT_FALSE(BitcastAVH == ConstantAVH);
-
-  EXPECT_TRUE(BitcastAVH != ConstantAVH);
-  EXPECT_TRUE(BitcastV.get() != ConstantAVH);
-  EXPECT_TRUE(BitcastAVH != ConstantV);
-  EXPECT_FALSE(BitcastAVH != BitcastAVH);
-
-  // Cast to Value* so comparisons work.
-  Value *BV = BitcastV.get();
-  Value *CV = ConstantV;
-  EXPECT_EQ(BV < CV, BitcastAVH < ConstantAVH);
-  EXPECT_EQ(BV <= CV, BitcastAVH <= ConstantAVH);
-  EXPECT_EQ(BV > CV, BitcastAVH > ConstantAVH);
-  EXPECT_EQ(BV >= CV, BitcastAVH >= ConstantAVH);
-
-  EXPECT_EQ(BV < CV, BitcastV.get() < ConstantAVH);
-  EXPECT_EQ(BV <= CV, BitcastV.get() <= ConstantAVH);
-  EXPECT_EQ(BV > CV, BitcastV.get() > ConstantAVH);
-  EXPECT_EQ(BV >= CV, BitcastV.get() >= ConstantAVH);
-
-  EXPECT_EQ(BV < CV, BitcastAVH < ConstantV);
-  EXPECT_EQ(BV <= CV, BitcastAVH <= ConstantV);
-  EXPECT_EQ(BV > CV, BitcastAVH > ConstantV);
-  EXPECT_EQ(BV >= CV, BitcastAVH >= ConstantV);
-}
-
-TEST_F(ValueHandle, AssertingVH_DoesNotFollowRAUW) {
-  AssertingVH<Value> AVH(BitcastV.get());
-  BitcastV->replaceAllUsesWith(ConstantV);
-  EXPECT_EQ(BitcastV.get(), AVH);
-}
-
-#ifdef NDEBUG
-
-TEST_F(ValueHandle, AssertingVH_ReducesToPointer) {
-  EXPECT_EQ(sizeof(CastInst *), sizeof(AssertingVH<CastInst>));
-}
-
-#else  // !NDEBUG
-
-#ifdef GTEST_HAS_DEATH_TEST
-
-TEST_F(ValueHandle, AssertingVH_Asserts) {
-  AssertingVH<Value> AVH(BitcastV.get());
-  EXPECT_DEATH({BitcastV.reset();},
-               "An asserting value handle still pointed to this value!");
-  AssertingVH<Value> Copy(AVH);
-  AVH = NULL;
-  EXPECT_DEATH({BitcastV.reset();},
-               "An asserting value handle still pointed to this value!");
-  Copy = NULL;
-  BitcastV.reset();
-}
-
-#endif  // GTEST_HAS_DEATH_TEST
-
-#endif  // NDEBUG
-
-TEST_F(ValueHandle, CallbackVH_BasicOperation) {
-  ConcreteCallbackVH CVH(BitcastV.get());
-  EXPECT_EQ(BitcastV.get(), CVH);
-  CVH = ConstantV;
-  EXPECT_EQ(ConstantV, CVH);
-
-  // Make sure I can call a method on the underlying Value.  It
-  // doesn't matter which method.
-  EXPECT_EQ(Type::getInt32Ty(getGlobalContext()), CVH->getType());
-  EXPECT_EQ(Type::getInt32Ty(getGlobalContext()), (*CVH).getType());
-}
-
-TEST_F(ValueHandle, CallbackVH_Comparisons) {
-  ConcreteCallbackVH BitcastCVH(BitcastV.get());
-  ConcreteCallbackVH ConstantCVH(ConstantV);
-
-  EXPECT_TRUE(BitcastCVH == BitcastCVH);
-  EXPECT_TRUE(BitcastV.get() == BitcastCVH);
-  EXPECT_TRUE(BitcastCVH == BitcastV.get());
-  EXPECT_FALSE(BitcastCVH == ConstantCVH);
-
-  EXPECT_TRUE(BitcastCVH != ConstantCVH);
-  EXPECT_TRUE(BitcastV.get() != ConstantCVH);
-  EXPECT_TRUE(BitcastCVH != ConstantV);
-  EXPECT_FALSE(BitcastCVH != BitcastCVH);
-
-  // Cast to Value* so comparisons work.
-  Value *BV = BitcastV.get();
-  Value *CV = ConstantV;
-  EXPECT_EQ(BV < CV, BitcastCVH < ConstantCVH);
-  EXPECT_EQ(BV <= CV, BitcastCVH <= ConstantCVH);
-  EXPECT_EQ(BV > CV, BitcastCVH > ConstantCVH);
-  EXPECT_EQ(BV >= CV, BitcastCVH >= ConstantCVH);
-
-  EXPECT_EQ(BV < CV, BitcastV.get() < ConstantCVH);
-  EXPECT_EQ(BV <= CV, BitcastV.get() <= ConstantCVH);
-  EXPECT_EQ(BV > CV, BitcastV.get() > ConstantCVH);
-  EXPECT_EQ(BV >= CV, BitcastV.get() >= ConstantCVH);
-
-  EXPECT_EQ(BV < CV, BitcastCVH < ConstantV);
-  EXPECT_EQ(BV <= CV, BitcastCVH <= ConstantV);
-  EXPECT_EQ(BV > CV, BitcastCVH > ConstantV);
-  EXPECT_EQ(BV >= CV, BitcastCVH >= ConstantV);
-}
-
-TEST_F(ValueHandle, CallbackVH_CallbackOnDeletion) {
-  class RecordingVH : public CallbackVH {
-  public:
-    int DeletedCalls;
-    int AURWCalls;
-
-    RecordingVH() : DeletedCalls(0), AURWCalls(0) {}
-    RecordingVH(Value *V) : CallbackVH(V), DeletedCalls(0), AURWCalls(0) {}
-
-  private:
-    virtual void deleted() { DeletedCalls++; CallbackVH::deleted(); }
-    virtual void allUsesReplacedWith(Value *) { AURWCalls++; }
-  };
-
-  RecordingVH RVH;
-  RVH = BitcastV.get();
-  EXPECT_EQ(0, RVH.DeletedCalls);
-  EXPECT_EQ(0, RVH.AURWCalls);
-  BitcastV.reset();
-  EXPECT_EQ(1, RVH.DeletedCalls);
-  EXPECT_EQ(0, RVH.AURWCalls);
-}
-
-TEST_F(ValueHandle, CallbackVH_CallbackOnRAUW) {
-  class RecordingVH : public CallbackVH {
-  public:
-    int DeletedCalls;
-    Value *AURWArgument;
-
-    RecordingVH() : DeletedCalls(0), AURWArgument(NULL) {}
-    RecordingVH(Value *V)
-      : CallbackVH(V), DeletedCalls(0), AURWArgument(NULL) {}
-
-  private:
-    virtual void deleted() { DeletedCalls++; CallbackVH::deleted(); }
-    virtual void allUsesReplacedWith(Value *new_value) {
-      EXPECT_EQ(NULL, AURWArgument);
-      AURWArgument = new_value;
-    }
-  };
-
-  RecordingVH RVH;
-  RVH = BitcastV.get();
-  EXPECT_EQ(0, RVH.DeletedCalls);
-  EXPECT_EQ(NULL, RVH.AURWArgument);
-  BitcastV->replaceAllUsesWith(ConstantV);
-  EXPECT_EQ(0, RVH.DeletedCalls);
-  EXPECT_EQ(ConstantV, RVH.AURWArgument);
-}
-
-TEST_F(ValueHandle, CallbackVH_DeletionCanRAUW) {
-  class RecoveringVH : public CallbackVH {
-  public:
-    int DeletedCalls;
-    Value *AURWArgument;
-    LLVMContext *Context;
-
-    RecoveringVH() : DeletedCalls(0), AURWArgument(NULL), 
-                     Context(&getGlobalContext()) {}
-    RecoveringVH(Value *V)
-      : CallbackVH(V), DeletedCalls(0), AURWArgument(NULL), 
-        Context(&getGlobalContext()) {}
-
-  private:
-    virtual void deleted() {
-      getValPtr()->replaceAllUsesWith(Constant::getNullValue(Type::getInt32Ty(getGlobalContext())));
-      setValPtr(NULL);
-    }
-    virtual void allUsesReplacedWith(Value *new_value) {
-      ASSERT_TRUE(NULL != getValPtr());
-      EXPECT_EQ(1U, getValPtr()->getNumUses());
-      EXPECT_EQ(NULL, AURWArgument);
-      AURWArgument = new_value;
-    }
-  };
-
-  // Normally, if a value has uses, deleting it will crash.  However, we can use
-  // a CallbackVH to remove the uses before the check for no uses.
-  RecoveringVH RVH;
-  RVH = BitcastV.get();
-  std::auto_ptr<BinaryOperator> BitcastUser(
-    BinaryOperator::CreateAdd(RVH, 
-                              Constant::getNullValue(Type::getInt32Ty(getGlobalContext()))));
-  EXPECT_EQ(BitcastV.get(), BitcastUser->getOperand(0));
-  BitcastV.reset();  // Would crash without the ValueHandler.
-  EXPECT_EQ(Constant::getNullValue(Type::getInt32Ty(getGlobalContext())), RVH.AURWArgument);
-  EXPECT_EQ(Constant::getNullValue(Type::getInt32Ty(getGlobalContext())),
-            BitcastUser->getOperand(0));
-}
-
-TEST_F(ValueHandle, DestroyingOtherVHOnSameValueDoesntBreakIteration) {
-  // When a CallbackVH modifies other ValueHandles in its callbacks,
-  // that shouldn't interfere with non-modified ValueHandles receiving
-  // their appropriate callbacks.
-  //
-  // We create the active CallbackVH in the middle of a palindromic
-  // arrangement of other VHs so that the bad behavior would be
-  // triggered in whichever order callbacks run.
-
-  class DestroyingVH : public CallbackVH {
-  public:
-    OwningPtr<WeakVH> ToClear[2];
-    DestroyingVH(Value *V) {
-      ToClear[0].reset(new WeakVH(V));
-      setValPtr(V);
-      ToClear[1].reset(new WeakVH(V));
-    }
-    virtual void deleted() {
-      ToClear[0].reset();
-      ToClear[1].reset();
-      CallbackVH::deleted();
-    }
-    virtual void allUsesReplacedWith(Value *) {
-      ToClear[0].reset();
-      ToClear[1].reset();
-    }
-  };
-
-  {
-    WeakVH ShouldBeVisited1(BitcastV.get());
-    DestroyingVH C(BitcastV.get());
-    WeakVH ShouldBeVisited2(BitcastV.get());
-
-    BitcastV->replaceAllUsesWith(ConstantV);
-    EXPECT_EQ(ConstantV, static_cast<Value*>(ShouldBeVisited1));
-    EXPECT_EQ(ConstantV, static_cast<Value*>(ShouldBeVisited2));
-  }
-
-  {
-    WeakVH ShouldBeVisited1(BitcastV.get());
-    DestroyingVH C(BitcastV.get());
-    WeakVH ShouldBeVisited2(BitcastV.get());
-
-    BitcastV.reset();
-    EXPECT_EQ(NULL, static_cast<Value*>(ShouldBeVisited1));
-    EXPECT_EQ(NULL, static_cast<Value*>(ShouldBeVisited2));
-  }
-}
-
-TEST_F(ValueHandle, AssertingVHCheckedLast) {
-  // If a CallbackVH exists to clear out a group of AssertingVHs on
-  // Value deletion, the CallbackVH should get a chance to do so
-  // before the AssertingVHs assert.
-
-  class ClearingVH : public CallbackVH {
-  public:
-    AssertingVH<Value> *ToClear[2];
-    ClearingVH(Value *V,
-               AssertingVH<Value> &A0, AssertingVH<Value> &A1)
-      : CallbackVH(V) {
-      ToClear[0] = &A0;
-      ToClear[1] = &A1;
-    }
-
-    virtual void deleted() {
-      *ToClear[0] = 0;
-      *ToClear[1] = 0;
-      CallbackVH::deleted();
-    }
-  };
-
-  AssertingVH<Value> A1, A2;
-  A1 = BitcastV.get();
-  ClearingVH C(BitcastV.get(), A1, A2);
-  A2 = BitcastV.get();
-  // C.deleted() should run first, clearing the two AssertingVHs,
-  // which should prevent them from asserting.
-  BitcastV.reset();
-}
-
-}