forked from OSchip/llvm-project
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===- unittests/IR/ModuleTest.cpp - Module unit tests --------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/IR/GlobalVariable.h"
|
|
#include "llvm/Pass.h"
|
|
#include "llvm/Support/RandomNumberGenerator.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
#include <random>
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
bool sortByName(const GlobalVariable &L, const GlobalVariable &R) {
|
|
return L.getName() < R.getName();
|
|
}
|
|
|
|
bool sortByNameReverse(const GlobalVariable &L, const GlobalVariable &R) {
|
|
return sortByName(R, L);
|
|
}
|
|
|
|
TEST(ModuleTest, sortGlobalsByName) {
|
|
LLVMContext Context;
|
|
for (auto compare : {&sortByName, &sortByNameReverse}) {
|
|
Module M("M", Context);
|
|
Type *T = Type::getInt8Ty(Context);
|
|
GlobalValue::LinkageTypes L = GlobalValue::ExternalLinkage;
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "A");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "F");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "G");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "E");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "B");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "H");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "C");
|
|
(void)new GlobalVariable(M, T, false, L, nullptr, "D");
|
|
|
|
// Sort the globals by name.
|
|
EXPECT_FALSE(std::is_sorted(M.global_begin(), M.global_end(), compare));
|
|
M.getGlobalList().sort(compare);
|
|
EXPECT_TRUE(std::is_sorted(M.global_begin(), M.global_end(), compare));
|
|
}
|
|
}
|
|
|
|
TEST(ModuleTest, randomNumberGenerator) {
|
|
LLVMContext Context;
|
|
static char ID;
|
|
struct DummyPass : ModulePass {
|
|
DummyPass() : ModulePass(ID) {}
|
|
bool runOnModule(Module &) { return true; }
|
|
} DP;
|
|
|
|
Module M("R", Context);
|
|
|
|
std::uniform_int_distribution<int> dist;
|
|
const size_t NBCheck = 10;
|
|
|
|
std::array<int, NBCheck> RandomStreams[2];
|
|
for (auto &RandomStream : RandomStreams) {
|
|
std::unique_ptr<RandomNumberGenerator> RNG = M.createRNG(DP.getPassName());
|
|
std::generate(RandomStream.begin(), RandomStream.end(),
|
|
[&]() { return dist(*RNG); });
|
|
}
|
|
|
|
EXPECT_TRUE(std::equal(RandomStreams[0].begin(), RandomStreams[0].end(),
|
|
RandomStreams[1].begin()));
|
|
}
|
|
|
|
} // end namespace
|