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4c1f3c24db
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
132 lines
4.6 KiB
C++
132 lines
4.6 KiB
C++
//===- ExecutionEngineTest.cpp - Unit tests for ExecutionEngine -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Interpreter.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/GlobalVariable.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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class ExecutionEngineTest : public testing::Test {
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protected:
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ExecutionEngineTest()
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: M(new Module("<main>", getGlobalContext())), Error(""),
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Engine(EngineBuilder(M).setErrorStr(&Error).create()) {
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}
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virtual void SetUp() {
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ASSERT_TRUE(Engine.get() != NULL) << "EngineBuilder returned error: '"
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<< Error << "'";
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}
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GlobalVariable *NewExtGlobal(Type *T, const Twine &Name) {
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return new GlobalVariable(*M, T, false, // Not constant.
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GlobalValue::ExternalLinkage, NULL, Name);
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}
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Module *const M;
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std::string Error;
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const OwningPtr<ExecutionEngine> Engine;
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};
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TEST_F(ExecutionEngineTest, ForwardGlobalMapping) {
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GlobalVariable *G1 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
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int32_t Mem1 = 3;
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Engine->addGlobalMapping(G1, &Mem1);
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EXPECT_EQ(&Mem1, Engine->getPointerToGlobalIfAvailable(G1));
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int32_t Mem2 = 4;
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Engine->updateGlobalMapping(G1, &Mem2);
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EXPECT_EQ(&Mem2, Engine->getPointerToGlobalIfAvailable(G1));
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Engine->updateGlobalMapping(G1, NULL);
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EXPECT_EQ(NULL, Engine->getPointerToGlobalIfAvailable(G1));
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Engine->updateGlobalMapping(G1, &Mem2);
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EXPECT_EQ(&Mem2, Engine->getPointerToGlobalIfAvailable(G1));
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GlobalVariable *G2 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
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EXPECT_EQ(NULL, Engine->getPointerToGlobalIfAvailable(G2))
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<< "The NULL return shouldn't depend on having called"
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<< " updateGlobalMapping(..., NULL)";
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// Check that update...() can be called before add...().
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Engine->updateGlobalMapping(G2, &Mem1);
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EXPECT_EQ(&Mem1, Engine->getPointerToGlobalIfAvailable(G2));
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EXPECT_EQ(&Mem2, Engine->getPointerToGlobalIfAvailable(G1))
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<< "A second mapping shouldn't affect the first.";
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}
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TEST_F(ExecutionEngineTest, ReverseGlobalMapping) {
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GlobalVariable *G1 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
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int32_t Mem1 = 3;
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Engine->addGlobalMapping(G1, &Mem1);
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EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
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int32_t Mem2 = 4;
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Engine->updateGlobalMapping(G1, &Mem2);
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EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem1));
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EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem2));
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GlobalVariable *G2 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global2");
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Engine->updateGlobalMapping(G2, &Mem1);
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EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1));
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EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem2));
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Engine->updateGlobalMapping(G1, NULL);
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EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1))
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<< "Removing one mapping doesn't affect a different one.";
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EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem2));
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Engine->updateGlobalMapping(G2, &Mem2);
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EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem1));
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EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem2))
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<< "Once a mapping is removed, we can point another GV at the"
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<< " now-free address.";
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}
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TEST_F(ExecutionEngineTest, ClearModuleMappings) {
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GlobalVariable *G1 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
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int32_t Mem1 = 3;
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Engine->addGlobalMapping(G1, &Mem1);
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EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
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Engine->clearGlobalMappingsFromModule(M);
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EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem1));
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GlobalVariable *G2 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global2");
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// After clearing the module mappings, we can assign a new GV to the
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// same address.
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Engine->addGlobalMapping(G2, &Mem1);
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EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1));
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}
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TEST_F(ExecutionEngineTest, DestructionRemovesGlobalMapping) {
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GlobalVariable *G1 =
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NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
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int32_t Mem1 = 3;
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Engine->addGlobalMapping(G1, &Mem1);
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// Make sure the reverse mapping is enabled.
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EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
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// When the GV goes away, the ExecutionEngine should remove any
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// mappings that refer to it.
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G1->eraseFromParent();
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EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem1));
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}
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}
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