[ADT] Don't use a fixture just to get a nonce type for this unittest.
[oota-llvm.git] / unittests / IR / ValueTest.cpp
index f10e58922e5b113281ff2b5b27256b7622bbdf80..9cf1306dae67d0480242a0b90e7b0087011dba6c 100644 (file)
@@ -11,6 +11,7 @@
 #include "llvm/IR/Function.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
+#include "llvm/IR/ModuleSlotTracker.h"
 #include "llvm/IR/Value.h"
 #include "llvm/Support/SourceMgr.h"
 #include "gtest/gtest.h"
@@ -34,18 +35,18 @@ TEST(ValueTest, UsedInBasicBlock) {
                              "  ret void\n"
                              "}\n";
   SMDiagnostic Err;
-  Module *M = ParseAssemblyString(ModuleString, NULL, Err, C);
+  std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
 
   Function *F = M->getFunction("f");
 
-  EXPECT_FALSE(F->isUsedInBasicBlock(F->begin()));
-  EXPECT_TRUE((++F->arg_begin())->isUsedInBasicBlock(F->begin()));
-  EXPECT_TRUE(F->arg_begin()->isUsedInBasicBlock(F->begin()));
+  EXPECT_FALSE(F->isUsedInBasicBlock(&F->front()));
+  EXPECT_TRUE((++F->arg_begin())->isUsedInBasicBlock(&F->front()));
+  EXPECT_TRUE(F->arg_begin()->isUsedInBasicBlock(&F->front()));
 }
 
 TEST(GlobalTest, CreateAddressSpace) {
   LLVMContext &Ctx = getGlobalContext();
-  OwningPtr<Module> M(new Module("TestModule", Ctx));
+  std::unique_ptr<Module> M(new Module("TestModule", Ctx));
   Type *Int8Ty = Type::getInt8Ty(Ctx);
   Type *Int32Ty = Type::getInt32Ty(Ctx);
 
@@ -56,10 +57,14 @@ TEST(GlobalTest, CreateAddressSpace) {
                          GlobalValue::ExternalLinkage,
                          Constant::getAllOnesValue(Int32Ty),
                          "dummy",
-                         0,
+                         nullptr,
                          GlobalVariable::NotThreadLocal,
                          1);
 
+  EXPECT_TRUE(Value::MaximumAlignment == 536870912U);
+  Dummy0->setAlignment(536870912U);
+  EXPECT_EQ(Dummy0->getAlignment(), 536870912U);
+
   // Make sure the address space isn't dropped when returning this.
   Constant *Dummy1 = M->getOrInsertGlobal("dummy", Int32Ty);
   EXPECT_EQ(Dummy0, Dummy1);
@@ -74,7 +79,7 @@ TEST(GlobalTest, CreateAddressSpace) {
                          GlobalValue::ExternalLinkage,
                          Constant::getAllOnesValue(Int32Ty),
                          "dummy_cast",
-                         0,
+                         nullptr,
                          GlobalVariable::NotThreadLocal,
                          1);
 
@@ -83,4 +88,151 @@ TEST(GlobalTest, CreateAddressSpace) {
   EXPECT_EQ(1u, DummyCast1->getType()->getPointerAddressSpace());
   EXPECT_NE(DummyCast0, DummyCast1) << *DummyCast1;
 }
+
+#ifdef GTEST_HAS_DEATH_TEST
+#ifndef NDEBUG
+TEST(GlobalTest, AlignDeath) {
+  LLVMContext &Ctx = getGlobalContext();
+  std::unique_ptr<Module> M(new Module("TestModule", Ctx));
+  Type *Int32Ty = Type::getInt32Ty(Ctx);
+  GlobalVariable *Var =
+      new GlobalVariable(*M, Int32Ty, true, GlobalValue::ExternalLinkage,
+                         Constant::getAllOnesValue(Int32Ty), "var", nullptr,
+                         GlobalVariable::NotThreadLocal, 1);
+
+  EXPECT_DEATH(Var->setAlignment(536870913U), "Alignment is not a power of 2");
+  EXPECT_DEATH(Var->setAlignment(1073741824U),
+               "Alignment is greater than MaximumAlignment");
+}
+#endif
+#endif
+
+TEST(ValueTest, printSlots) {
+  // Check that Value::print() and Value::printAsOperand() work with and
+  // without a slot tracker.
+  LLVMContext C;
+
+  const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
+                             "entry:\n"
+                             "  %0 = add i32 %y, 1\n"
+                             "  %1 = add i32 %y, 1\n"
+                             "  ret void\n"
+                             "}\n";
+  SMDiagnostic Err;
+  std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
+
+  Function *F = M->getFunction("f");
+  ASSERT_TRUE(F);
+  ASSERT_FALSE(F->empty());
+  BasicBlock &BB = F->getEntryBlock();
+  ASSERT_EQ(3u, BB.size());
+
+  Instruction *I0 = &*BB.begin();
+  ASSERT_TRUE(I0);
+  Instruction *I1 = &*++BB.begin();
+  ASSERT_TRUE(I1);
+
+  ModuleSlotTracker MST(M.get());
+
+#define CHECK_PRINT(INST, STR)                                                 \
+  do {                                                                         \
+    {                                                                          \
+      std::string S;                                                           \
+      raw_string_ostream OS(S);                                                \
+      INST->print(OS);                                                         \
+      EXPECT_EQ(STR, OS.str());                                                \
+    }                                                                          \
+    {                                                                          \
+      std::string S;                                                           \
+      raw_string_ostream OS(S);                                                \
+      INST->print(OS, MST);                                                    \
+      EXPECT_EQ(STR, OS.str());                                                \
+    }                                                                          \
+  } while (false)
+  CHECK_PRINT(I0, "  %0 = add i32 %y, 1");
+  CHECK_PRINT(I1, "  %1 = add i32 %y, 1");
+#undef CHECK_PRINT
+
+#define CHECK_PRINT_AS_OPERAND(INST, TYPE, STR)                                \
+  do {                                                                         \
+    {                                                                          \
+      std::string S;                                                           \
+      raw_string_ostream OS(S);                                                \
+      INST->printAsOperand(OS, TYPE);                                          \
+      EXPECT_EQ(StringRef(STR), StringRef(OS.str()));                          \
+    }                                                                          \
+    {                                                                          \
+      std::string S;                                                           \
+      raw_string_ostream OS(S);                                                \
+      INST->printAsOperand(OS, TYPE, MST);                                     \
+      EXPECT_EQ(StringRef(STR), StringRef(OS.str()));                          \
+    }                                                                          \
+  } while (false)
+  CHECK_PRINT_AS_OPERAND(I0, false, "%0");
+  CHECK_PRINT_AS_OPERAND(I1, false, "%1");
+  CHECK_PRINT_AS_OPERAND(I0, true, "i32 %0");
+  CHECK_PRINT_AS_OPERAND(I1, true, "i32 %1");
+#undef CHECK_PRINT_AS_OPERAND
+}
+
+TEST(ValueTest, getLocalSlots) {
+  // Verify that the getLocalSlot method returns the correct slot numbers.
+  LLVMContext C;
+  const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
+                             "entry:\n"
+                             "  %0 = add i32 %y, 1\n"
+                             "  %1 = add i32 %y, 1\n"
+                             "  br label %2\n"
+                             "\n"
+                             "  ret void\n"
+                             "}\n";
+  SMDiagnostic Err;
+  std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
+
+  Function *F = M->getFunction("f");
+  ASSERT_TRUE(F);
+  ASSERT_FALSE(F->empty());
+  BasicBlock &EntryBB = F->getEntryBlock();
+  ASSERT_EQ(3u, EntryBB.size());
+  BasicBlock *BB2 = &*++F->begin();
+  ASSERT_TRUE(BB2);
+
+  Instruction *I0 = &*EntryBB.begin();
+  ASSERT_TRUE(I0);
+  Instruction *I1 = &*++EntryBB.begin();
+  ASSERT_TRUE(I1);
+
+  ModuleSlotTracker MST(M.get());
+  MST.incorporateFunction(*F);
+  EXPECT_EQ(MST.getLocalSlot(I0), 0);
+  EXPECT_EQ(MST.getLocalSlot(I1), 1);
+  EXPECT_EQ(MST.getLocalSlot(&EntryBB), -1);
+  EXPECT_EQ(MST.getLocalSlot(BB2), 2);
+}
+
+#if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG)
+TEST(ValueTest, getLocalSlotDeath) {
+  LLVMContext C;
+  const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
+                             "entry:\n"
+                             "  %0 = add i32 %y, 1\n"
+                             "  %1 = add i32 %y, 1\n"
+                             "  br label %2\n"
+                             "\n"
+                             "  ret void\n"
+                             "}\n";
+  SMDiagnostic Err;
+  std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
+
+  Function *F = M->getFunction("f");
+  ASSERT_TRUE(F);
+  ASSERT_FALSE(F->empty());
+  BasicBlock *BB2 = &*++F->begin();
+  ASSERT_TRUE(BB2);
+
+  ModuleSlotTracker MST(M.get());
+  EXPECT_DEATH(MST.getLocalSlot(BB2), "No function incorporated");
+}
+#endif
+
 } // end anonymous namespace