1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
// Copyright 2021 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <bit>
#include <cstddef>
#include <random>
#include <type_traits>
#include "Common/Arm64Emitter.h"
#include "Common/Assert.h"
#include <gtest/gtest.h>
namespace
{
using namespace Arm64Gen;
class TestMovI2R : public ARM64CodeBlock
{
public:
TestMovI2R() { AllocCodeSpace(4096); }
void Check32(u32 value)
{
ResetCodePtr();
const u8* fn = GetCodePtr();
{
const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
MOVI2R(ARM64Reg::W0, value);
RET();
}
FlushIcacheSection(const_cast<u8*>(fn), const_cast<u8*>(GetCodePtr()));
const u64 result = std::bit_cast<u64 (*)()>(fn)();
EXPECT_EQ(value, result);
}
void Check64(u64 value)
{
ResetCodePtr();
const u8* fn = GetCodePtr();
{
const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
MOVI2R(ARM64Reg::X0, value);
RET();
}
FlushIcacheSection(const_cast<u8*>(fn), const_cast<u8*>(GetCodePtr()));
const u64 result = std::bit_cast<u64 (*)()>(fn)();
EXPECT_EQ(value, result);
}
};
} // namespace
TEST(JitArm64, MovI2R_32BitValues)
{
std::default_random_engine engine(0);
std::uniform_int_distribution<u32> dist;
TestMovI2R test;
for (u64 i = 0; i < 0x100000; i++)
{
const u32 value = dist(engine);
test.Check32(value);
test.Check64(value);
}
}
TEST(JitArm64, MovI2R_Rand)
{
std::default_random_engine engine(0);
std::uniform_int_distribution<u64> dist;
TestMovI2R test;
for (u64 i = 0; i < 0x100000; i++)
{
test.Check64(dist(engine));
}
}
// Construct and test every 64-bit logical immediate
TEST(JitArm64, MovI2R_LogImm)
{
TestMovI2R test;
for (unsigned size = 2; size <= 64; size *= 2)
{
for (unsigned length = 1; length < size; ++length)
{
u64 imm = ~u64{0} >> (64 - length);
for (unsigned e = size; e < 64; e *= 2)
{
imm |= imm << e;
}
for (unsigned rotation = 0; rotation < size; ++rotation)
{
test.Check64(imm);
EXPECT_EQ(static_cast<bool>(LogicalImm(imm, GPRSize::B64)), true);
if (size < 64)
{
test.Check32(imm);
EXPECT_EQ(static_cast<bool>(LogicalImm(static_cast<u32>(imm), GPRSize::B32)), true);
}
imm = (imm >> 63) | (imm << 1);
}
}
}
}
TEST(JitArm64, MovI2R_ADP)
{
TestMovI2R test;
const u64 base = std::bit_cast<u64>(test.GetCodePtr());
// Test offsets around 0
for (s64 i = -0x20000; i < 0x20000; i++)
{
const u64 offset = static_cast<u64>(i);
test.Check64(base + offset);
}
// Test offsets around the maximum
for (const s64 i : {-0x200000ll, 0x200000ll})
{
for (s64 j = -4; j < 4; j++)
{
const u64 offset = static_cast<u64>(i + j);
test.Check64(base + offset);
}
}
}
TEST(JitArm64, MovI2R_ADRP)
{
TestMovI2R test;
const u64 base = std::bit_cast<u64>(test.GetCodePtr()) & ~0xFFF;
// Test offsets around 0
for (s64 i = -0x20000; i < 0x20000; i++)
{
const u64 offset = static_cast<u64>(i) << 12;
test.Check64(base + offset);
}
// Test offsets around the maximum
for (const s64 i : {-0x100000000ll, -0x80000000ll, 0x80000000ll, 0x100000000ll})
{
for (s64 j = -4; j < 4; j++)
{
const u64 offset = static_cast<u64>(i + (j << 12));
test.Check64(base + offset);
}
}
}
|
