b15aa7f88c
In AllocGroupSmallMap::find(AllocGroup) we were calling lower_bound(...) and then unconditionally dereferencing the resulting iterator, however lower_bound(...) may return end() if the value being searched for is higher than any value present in the map. This patch adds a check for end() before the dereference to guard against dereference of end(). This commit also adds some basic unit tests for MemProt and AllocGroupSmallMap. rdar://129662981
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===------- MemoryFlagsTest.cpp - Test MemoryFlags and related APIs ------===//
|
|
//
|
|
// 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/ExecutionEngine/Orc/Shared/MemoryFlags.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
#include <future>
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::orc;
|
|
|
|
TEST(MemProtTest, Basics) {
|
|
MemProt MPNone = MemProt::None;
|
|
|
|
EXPECT_EQ(MPNone & MemProt::Read, MemProt::None);
|
|
EXPECT_EQ(MPNone & MemProt::Write, MemProt::None);
|
|
EXPECT_EQ(MPNone & MemProt::Exec, MemProt::None);
|
|
|
|
EXPECT_EQ(MPNone | MemProt::Read, MemProt::Read);
|
|
EXPECT_EQ(MPNone | MemProt::Write, MemProt::Write);
|
|
EXPECT_EQ(MPNone | MemProt::Exec, MemProt::Exec);
|
|
|
|
MemProt MPAll = MemProt::Read | MemProt::Write | MemProt::Exec;
|
|
EXPECT_EQ(MPAll & MemProt::Read, MemProt::Read);
|
|
EXPECT_EQ(MPAll & MemProt::Write, MemProt::Write);
|
|
EXPECT_EQ(MPAll & MemProt::Exec, MemProt::Exec);
|
|
}
|
|
|
|
TEST(AllocGroupSmallMap, EmptyMap) {
|
|
AllocGroupSmallMap<bool> EM;
|
|
EXPECT_TRUE(EM.empty());
|
|
EXPECT_EQ(EM.size(), 0u);
|
|
}
|
|
|
|
TEST(AllocGroupSmallMap, NonEmptyMap) {
|
|
AllocGroupSmallMap<unsigned> NEM;
|
|
NEM[MemProt::Read] = 42;
|
|
|
|
EXPECT_FALSE(NEM.empty());
|
|
EXPECT_EQ(NEM.size(), 1U);
|
|
EXPECT_EQ(NEM[MemProt::Read], 42U);
|
|
EXPECT_EQ(NEM.find(MemProt::Read), NEM.begin());
|
|
EXPECT_EQ(NEM.find(MemProt::Read | MemProt::Write), NEM.end());
|
|
|
|
NEM[MemProt::Read | MemProt::Write] = 7;
|
|
EXPECT_EQ(NEM.size(), 2U);
|
|
EXPECT_EQ(NEM.begin()->second, 42U);
|
|
EXPECT_EQ((NEM.begin() + 1)->second, 7U);
|
|
}
|
|
|