1/*
2 * Copyright (C) 2021 Collabora, Ltd.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24#include "compiler.h"
25
26#include <gtest/gtest.h>
27
28#define L(x) ((enum bi_clause_subword)(BI_CLAUSE_SUBWORD_LITERAL_0 + x))
29#define U(x) ((enum bi_clause_subword)(BI_CLAUSE_SUBWORD_UPPER_0 + x))
30#define T(x) ((enum bi_clause_subword)(BI_CLAUSE_SUBWORD_TUPLE_0 + x))
31#define Z    BI_CLAUSE_SUBWORD_Z
32
33TEST(Packing, PackLiteral)
34{
35   for (unsigned x = 0; x <= 7; ++x)
36      EXPECT_EQ(bi_pack_literal(L(x)), x);
37}
38
39TEST(Packing, PackUpper)
40{
41   struct bi_packed_tuple tuples[] = {
42      { 0, 0x3 << (75 - 64) },
43      { 0, 0x1 << (75 - 64) },
44      { 0, 0x7 << (75 - 64) },
45      { 0, 0x0 << (75 - 64) },
46      { 0, 0x2 << (75 - 64) },
47      { 0, 0x6 << (75 - 64) },
48      { 0, 0x5 << (75 - 64) },
49      { 0, 0x4 << (75 - 64) },
50   };
51
52   EXPECT_EQ(bi_pack_upper(U(0), tuples, 8), 3);
53   EXPECT_EQ(bi_pack_upper(U(1), tuples, 8), 1);
54   EXPECT_EQ(bi_pack_upper(U(2), tuples, 8), 7);
55   EXPECT_EQ(bi_pack_upper(U(3), tuples, 8), 0);
56   EXPECT_EQ(bi_pack_upper(U(4), tuples, 8), 2);
57   EXPECT_EQ(bi_pack_upper(U(5), tuples, 8), 6);
58   EXPECT_EQ(bi_pack_upper(U(6), tuples, 8), 5);
59   EXPECT_EQ(bi_pack_upper(U(7), tuples, 8), 4);
60}
61
62TEST(Packing, PackTupleBits)
63{
64   struct bi_packed_tuple tuples[] = {
65      { 0x1234567801234567, 0x3A },
66      { 0x9876543299999999, 0x1B },
67      { 0xABCDEF0101234567, 0x7C },
68   };
69
70   EXPECT_EQ(bi_pack_tuple_bits(T(0), tuples, 8, 0, 30), 0x01234567);
71   EXPECT_EQ(bi_pack_tuple_bits(T(1), tuples, 8, 10, 30), 0xca66666);
72   EXPECT_EQ(bi_pack_tuple_bits(T(2), tuples, 8, 40, 15), 0x4def);
73}
74
75TEST(Packing, PackSync)
76{
77   struct bi_packed_tuple tuples[] = {
78      { 0, 0x3 << (75 - 64) },
79      { 0, 0x5 << (75 - 64) },
80      { 0, 0x7 << (75 - 64) },
81      { 0, 0x0 << (75 - 64) },
82      { 0, 0x2 << (75 - 64) },
83      { 0, 0x6 << (75 - 64) },
84      { 0, 0x5 << (75 - 64) },
85      { 0, 0x4 << (75 - 64) },
86   };
87
88   EXPECT_EQ(bi_pack_sync(L(3), L(1), L(7), tuples, 8, false), 0xCF);
89   EXPECT_EQ(bi_pack_sync(L(3), L(1), U(7), tuples, 8, false), 0xCC);
90   EXPECT_EQ(bi_pack_sync(L(3), U(1), U(7), tuples, 8, false), 0xEC);
91   EXPECT_EQ(bi_pack_sync(Z,    U(1), U(7), tuples, 8, false), 0x2C);
92   EXPECT_EQ(bi_pack_sync(Z,    U(1), U(7), tuples, 8, true) , 0x6C);
93}
94