| //===- llvm/unittest/ADT/SparseBitVectorTest.cpp - SparseBitVector 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/ADT/SparseBitVector.h" |
| #include "gtest/gtest.h" |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| TEST(SparseBitVectorTest, TrivialOperation) { |
| SparseBitVector<> Vec; |
| EXPECT_EQ(0U, Vec.count()); |
| EXPECT_FALSE(Vec.test(17)); |
| Vec.set(5); |
| EXPECT_TRUE(Vec.test(5)); |
| EXPECT_FALSE(Vec.test(17)); |
| Vec.reset(6); |
| EXPECT_TRUE(Vec.test(5)); |
| EXPECT_FALSE(Vec.test(6)); |
| Vec.reset(5); |
| EXPECT_FALSE(Vec.test(5)); |
| EXPECT_TRUE(Vec.test_and_set(17)); |
| EXPECT_FALSE(Vec.test_and_set(17)); |
| EXPECT_TRUE(Vec.test(17)); |
| Vec.clear(); |
| EXPECT_FALSE(Vec.test(17)); |
| |
| Vec.set(5); |
| const SparseBitVector<> ConstVec = Vec; |
| EXPECT_TRUE(ConstVec.test(5)); |
| EXPECT_FALSE(ConstVec.test(17)); |
| |
| Vec.set(1337); |
| EXPECT_TRUE(Vec.test(1337)); |
| Vec = ConstVec; |
| EXPECT_FALSE(Vec.test(1337)); |
| |
| Vec.set(1337); |
| EXPECT_FALSE(Vec.empty()); |
| SparseBitVector<> MovedVec(std::move(Vec)); |
| EXPECT_TRUE(Vec.empty()); |
| EXPECT_TRUE(MovedVec.test(5)); |
| EXPECT_TRUE(MovedVec.test(1337)); |
| |
| Vec = std::move(MovedVec); |
| EXPECT_TRUE(MovedVec.empty()); |
| EXPECT_FALSE(Vec.empty()); |
| } |
| |
| TEST(SparseBitVectorTest, IntersectWith) { |
| SparseBitVector<> Vec, Other; |
| |
| Vec.set(1); |
| Other.set(1); |
| EXPECT_FALSE(Vec &= Other); |
| EXPECT_TRUE(Vec.test(1)); |
| |
| Vec.clear(); |
| Vec.set(5); |
| Other.clear(); |
| Other.set(6); |
| EXPECT_TRUE(Vec &= Other); |
| EXPECT_TRUE(Vec.empty()); |
| |
| Vec.clear(); |
| Vec.set(5); |
| Other.clear(); |
| Other.set(225); |
| EXPECT_TRUE(Vec &= Other); |
| EXPECT_TRUE(Vec.empty()); |
| |
| Vec.clear(); |
| Vec.set(225); |
| Other.clear(); |
| Other.set(5); |
| EXPECT_TRUE(Vec &= Other); |
| EXPECT_TRUE(Vec.empty()); |
| } |
| |
| TEST(SparseBitVectorTest, SelfAssignment) { |
| SparseBitVector<> Vec, Other; |
| |
| Vec.set(23); |
| Vec.set(234); |
| Vec = static_cast<SparseBitVector<> &>(Vec); |
| EXPECT_TRUE(Vec.test(23)); |
| EXPECT_TRUE(Vec.test(234)); |
| |
| Vec.clear(); |
| Vec.set(17); |
| Vec.set(256); |
| EXPECT_FALSE(Vec |= Vec); |
| EXPECT_TRUE(Vec.test(17)); |
| EXPECT_TRUE(Vec.test(256)); |
| |
| Vec.clear(); |
| Vec.set(56); |
| Vec.set(517); |
| EXPECT_FALSE(Vec &= Vec); |
| EXPECT_TRUE(Vec.test(56)); |
| EXPECT_TRUE(Vec.test(517)); |
| |
| Vec.clear(); |
| Vec.set(99); |
| Vec.set(333); |
| EXPECT_TRUE(Vec.intersectWithComplement(Vec)); |
| EXPECT_TRUE(Vec.empty()); |
| EXPECT_FALSE(Vec.intersectWithComplement(Vec)); |
| |
| Vec.clear(); |
| Vec.set(28); |
| Vec.set(43); |
| Vec.intersectWithComplement(Vec, Vec); |
| EXPECT_TRUE(Vec.empty()); |
| |
| Vec.clear(); |
| Vec.set(42); |
| Vec.set(567); |
| Other.set(55); |
| Other.set(567); |
| Vec.intersectWithComplement(Vec, Other); |
| EXPECT_TRUE(Vec.test(42)); |
| EXPECT_FALSE(Vec.test(567)); |
| |
| Vec.clear(); |
| Vec.set(19); |
| Vec.set(21); |
| Other.clear(); |
| Other.set(19); |
| Other.set(31); |
| Vec.intersectWithComplement(Other, Vec); |
| EXPECT_FALSE(Vec.test(19)); |
| EXPECT_TRUE(Vec.test(31)); |
| |
| Vec.clear(); |
| Vec.set(1); |
| Other.clear(); |
| Other.set(59); |
| Other.set(75); |
| Vec.intersectWithComplement(Other, Other); |
| EXPECT_TRUE(Vec.empty()); |
| } |
| |
| TEST(SparseBitVectorTest, Find) { |
| SparseBitVector<> Vec; |
| Vec.set(1); |
| EXPECT_EQ(1, Vec.find_first()); |
| EXPECT_EQ(1, Vec.find_last()); |
| |
| Vec.set(2); |
| EXPECT_EQ(1, Vec.find_first()); |
| EXPECT_EQ(2, Vec.find_last()); |
| |
| Vec.set(0); |
| Vec.set(3); |
| EXPECT_EQ(0, Vec.find_first()); |
| EXPECT_EQ(3, Vec.find_last()); |
| |
| Vec.reset(1); |
| Vec.reset(0); |
| Vec.reset(3); |
| EXPECT_EQ(2, Vec.find_first()); |
| EXPECT_EQ(2, Vec.find_last()); |
| |
| // Set some large bits to ensure we are pulling bits from more than just a |
| // single bitword. |
| Vec.set(500); |
| Vec.set(2000); |
| Vec.set(3000); |
| Vec.set(4000); |
| Vec.reset(2); |
| EXPECT_EQ(500, Vec.find_first()); |
| EXPECT_EQ(4000, Vec.find_last()); |
| |
| Vec.reset(500); |
| Vec.reset(3000); |
| Vec.reset(4000); |
| EXPECT_EQ(2000, Vec.find_first()); |
| EXPECT_EQ(2000, Vec.find_last()); |
| |
| Vec.clear(); |
| } |
| } |