1 //===- llvm/unittest/ADT/PackedVectorTest.cpp - PackedVector tests --------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // BitVectorTest tests fail on PowerPC for unknown reasons, so disable this
10 // as well since it depends on a BitVector.
11 #ifndef __ppc__
12 
13 #include "llvm/ADT/PackedVector.h"
14 #include "gtest/gtest.h"
15 
16 using namespace llvm;
17 
18 namespace {
19 
20 TEST(PackedVectorTest, Operation) {
21   PackedVector<unsigned, 2> Vec;
22   EXPECT_EQ(0U, Vec.size());
23   EXPECT_TRUE(Vec.empty());
24 
25   Vec.resize(5);
26   EXPECT_EQ(5U, Vec.size());
27   EXPECT_FALSE(Vec.empty());
28 
29   Vec.resize(11);
30   EXPECT_EQ(11U, Vec.size());
31   EXPECT_FALSE(Vec.empty());
32 
33   PackedVector<unsigned, 2> Vec2(3);
34   EXPECT_EQ(3U, Vec2.size());
35   EXPECT_FALSE(Vec2.empty());
36 
37   Vec.clear();
38   EXPECT_EQ(0U, Vec.size());
39   EXPECT_TRUE(Vec.empty());
40 
41   Vec.push_back(2);
42   Vec.push_back(0);
43   Vec.push_back(1);
44   Vec.push_back(3);
45 
46   EXPECT_EQ(2U, Vec[0]);
47   EXPECT_EQ(0U, Vec[1]);
48   EXPECT_EQ(1U, Vec[2]);
49   EXPECT_EQ(3U, Vec[3]);
50 
51   EXPECT_FALSE(Vec == Vec2);
52   EXPECT_TRUE(Vec != Vec2);
53 
54   Vec = Vec2;
55   EXPECT_TRUE(Vec == Vec2);
56   EXPECT_FALSE(Vec != Vec2);
57 
58   Vec[1] = 1;
59   Vec2[1] = 2;
60   Vec |= Vec2;
61   EXPECT_EQ(3U, Vec[1]);
62 }
63 
64 #ifdef EXPECT_DEBUG_DEATH
65 
66 TEST(PackedVectorTest, UnsignedValues) {
67   PackedVector<unsigned, 2> Vec(1);
68   Vec[0] = 0;
69   Vec[0] = 1;
70   Vec[0] = 2;
71   Vec[0] = 3;
72   EXPECT_DEBUG_DEATH(Vec[0] = 4, "value is too big");
73   EXPECT_DEBUG_DEATH(Vec[0] = -1, "value is too big");
74   EXPECT_DEBUG_DEATH(Vec[0] = 0x100, "value is too big");
75 
76   PackedVector<unsigned, 3> Vec2(1);
77   Vec2[0] = 0;
78   Vec2[0] = 7;
79   EXPECT_DEBUG_DEATH(Vec[0] = 8, "value is too big");
80 }
81 
82 TEST(PackedVectorTest, SignedValues) {
83   PackedVector<signed, 2> Vec(1);
84   Vec[0] = -2;
85   Vec[0] = -1;
86   Vec[0] = 0;
87   Vec[0] = 1;
88   EXPECT_DEBUG_DEATH(Vec[0] = -3, "value is too big");
89   EXPECT_DEBUG_DEATH(Vec[0] = 2, "value is too big");
90 
91   PackedVector<signed, 3> Vec2(1);
92   Vec2[0] = -4;
93   Vec2[0] = 3;
94   EXPECT_DEBUG_DEATH(Vec[0] = -5, "value is too big");
95   EXPECT_DEBUG_DEATH(Vec[0] = 4, "value is too big");
96 }
97 
98 #endif
99 
100 }
101 
102 #endif
103