mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
3f4ed32b43
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215967 91177308-0d34-0410-b5e6-96231b3b80d8
132 lines
4.7 KiB
C++
132 lines
4.7 KiB
C++
//===- ExecutionEngineTest.cpp - Unit tests for ExecutionEngine -----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ExecutionEngine/Interpreter.h"
|
|
#include "llvm/IR/DerivedTypes.h"
|
|
#include "llvm/IR/GlobalVariable.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
class ExecutionEngineTest : public testing::Test {
|
|
protected:
|
|
ExecutionEngineTest() {
|
|
auto Owner = make_unique<Module>("<main>", getGlobalContext());
|
|
M = Owner.get();
|
|
Engine.reset(EngineBuilder(std::move(Owner)).setErrorStr(&Error).create());
|
|
}
|
|
|
|
virtual void SetUp() {
|
|
ASSERT_TRUE(Engine.get() != nullptr) << "EngineBuilder returned error: '"
|
|
<< Error << "'";
|
|
}
|
|
|
|
GlobalVariable *NewExtGlobal(Type *T, const Twine &Name) {
|
|
return new GlobalVariable(*M, T, false, // Not constant.
|
|
GlobalValue::ExternalLinkage, nullptr, Name);
|
|
}
|
|
|
|
std::string Error;
|
|
Module *M; // Owned by ExecutionEngine.
|
|
std::unique_ptr<ExecutionEngine> Engine;
|
|
};
|
|
|
|
TEST_F(ExecutionEngineTest, ForwardGlobalMapping) {
|
|
GlobalVariable *G1 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
|
|
int32_t Mem1 = 3;
|
|
Engine->addGlobalMapping(G1, &Mem1);
|
|
EXPECT_EQ(&Mem1, Engine->getPointerToGlobalIfAvailable(G1));
|
|
int32_t Mem2 = 4;
|
|
Engine->updateGlobalMapping(G1, &Mem2);
|
|
EXPECT_EQ(&Mem2, Engine->getPointerToGlobalIfAvailable(G1));
|
|
Engine->updateGlobalMapping(G1, nullptr);
|
|
EXPECT_EQ(nullptr, Engine->getPointerToGlobalIfAvailable(G1));
|
|
Engine->updateGlobalMapping(G1, &Mem2);
|
|
EXPECT_EQ(&Mem2, Engine->getPointerToGlobalIfAvailable(G1));
|
|
|
|
GlobalVariable *G2 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
|
|
EXPECT_EQ(nullptr, Engine->getPointerToGlobalIfAvailable(G2))
|
|
<< "The NULL return shouldn't depend on having called"
|
|
<< " updateGlobalMapping(..., NULL)";
|
|
// Check that update...() can be called before add...().
|
|
Engine->updateGlobalMapping(G2, &Mem1);
|
|
EXPECT_EQ(&Mem1, Engine->getPointerToGlobalIfAvailable(G2));
|
|
EXPECT_EQ(&Mem2, Engine->getPointerToGlobalIfAvailable(G1))
|
|
<< "A second mapping shouldn't affect the first.";
|
|
}
|
|
|
|
TEST_F(ExecutionEngineTest, ReverseGlobalMapping) {
|
|
GlobalVariable *G1 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
|
|
|
|
int32_t Mem1 = 3;
|
|
Engine->addGlobalMapping(G1, &Mem1);
|
|
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
|
|
int32_t Mem2 = 4;
|
|
Engine->updateGlobalMapping(G1, &Mem2);
|
|
EXPECT_EQ(nullptr, Engine->getGlobalValueAtAddress(&Mem1));
|
|
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem2));
|
|
|
|
GlobalVariable *G2 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global2");
|
|
Engine->updateGlobalMapping(G2, &Mem1);
|
|
EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1));
|
|
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem2));
|
|
Engine->updateGlobalMapping(G1, nullptr);
|
|
EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1))
|
|
<< "Removing one mapping doesn't affect a different one.";
|
|
EXPECT_EQ(nullptr, Engine->getGlobalValueAtAddress(&Mem2));
|
|
Engine->updateGlobalMapping(G2, &Mem2);
|
|
EXPECT_EQ(nullptr, Engine->getGlobalValueAtAddress(&Mem1));
|
|
EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem2))
|
|
<< "Once a mapping is removed, we can point another GV at the"
|
|
<< " now-free address.";
|
|
}
|
|
|
|
TEST_F(ExecutionEngineTest, ClearModuleMappings) {
|
|
GlobalVariable *G1 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
|
|
|
|
int32_t Mem1 = 3;
|
|
Engine->addGlobalMapping(G1, &Mem1);
|
|
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
|
|
|
|
Engine->clearGlobalMappingsFromModule(M);
|
|
|
|
EXPECT_EQ(nullptr, Engine->getGlobalValueAtAddress(&Mem1));
|
|
|
|
GlobalVariable *G2 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global2");
|
|
// After clearing the module mappings, we can assign a new GV to the
|
|
// same address.
|
|
Engine->addGlobalMapping(G2, &Mem1);
|
|
EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1));
|
|
}
|
|
|
|
TEST_F(ExecutionEngineTest, DestructionRemovesGlobalMapping) {
|
|
GlobalVariable *G1 =
|
|
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
|
|
int32_t Mem1 = 3;
|
|
Engine->addGlobalMapping(G1, &Mem1);
|
|
// Make sure the reverse mapping is enabled.
|
|
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
|
|
// When the GV goes away, the ExecutionEngine should remove any
|
|
// mappings that refer to it.
|
|
G1->eraseFromParent();
|
|
EXPECT_EQ(nullptr, Engine->getGlobalValueAtAddress(&Mem1));
|
|
}
|
|
|
|
}
|