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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
#include "utest_helper.hpp"
namespace {
typedef struct {
unsigned long x;
unsigned long y;
unsigned long z;
unsigned long w;
}ulong4;
typedef struct {
uint32_t x;
uint32_t y;
uint32_t z;
uint32_t w;
} uint4;
typedef struct {
uint16_t x;
uint16_t y;
uint16_t z;
uint16_t w;
} ushort4;
typedef struct {
uint8_t x;
uint8_t y;
uint8_t z;
uint8_t w;
} uchar4;
template <typename U>
U get_max()
{
int shift_bit = sizeof(U)*8;
U u_max = 0;
for (int i = 0; i < shift_bit; i++)
u_max |= 1<<(shift_bit-i-1);
return u_max;
}
template<typename T, typename U>
void test(const char *kernel_name, int func_type)
{
const size_t n = 16;
// Setup kernel and buffers
OCL_CREATE_KERNEL_FROM_FILE("compiler_overflow", kernel_name);
OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(T), NULL);
OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(T), NULL);
OCL_CREATE_BUFFER(buf[2], 0, n * sizeof(T), NULL);
OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
U max = get_max<U>();
// test add and sub overflow when src1 is 1:
// uadd.with.overflow: max + 1
// usub.with.overflow: 0 - 1
OCL_MAP_BUFFER(0);
for (uint32_t i = 0; i < n; ++i) {
if(func_type == 0) {
((T*)buf_data[0])[i].x = max;
((T*)buf_data[0])[i].y = max;
((T*)buf_data[0])[i].z = max;
((T*)buf_data[0])[i].w = i;
}else if(func_type == 1) {
((T*)buf_data[0])[i].x = 0;
((T*)buf_data[0])[i].y = 0;
((T*)buf_data[0])[i].z = 0;
((T*)buf_data[0])[i].w = n+2-i;
}else
OCL_ASSERT(0);
}
OCL_UNMAP_BUFFER(0);
OCL_MAP_BUFFER(1);
for (uint32_t i = 0; i < n; ++i) {
((T*)buf_data[1])[i].x = 1;
((T*)buf_data[1])[i].y = 1;
((T*)buf_data[1])[i].z = 1;
((T*)buf_data[1])[i].w = 1;
}
OCL_UNMAP_BUFFER(1);
globals[0] = n;
locals[0] = 16;
OCL_NDRANGE(1);
OCL_MAP_BUFFER(2);
for (uint32_t i = 0; i < 16; ++i) {
// printf("%u,%u,%u,%u\n", ((T*)buf_data[2])[i].x,((T*)buf_data[2])[i].y, ((T*)buf_data[2])[i].z, ((T*)buf_data[2])[i].w );
if(func_type == 0) {
OCL_ASSERT(((T*)buf_data[2])[i].x == 0);
OCL_ASSERT(((T*)buf_data[2])[i].y == 1);
OCL_ASSERT(((T*)buf_data[2])[i].z == 1);
OCL_ASSERT(((T*)buf_data[2])[i].w == i+2);
}else if(func_type == 1) {
OCL_ASSERT(((T*)buf_data[2])[i].x == max);
OCL_ASSERT(((T*)buf_data[2])[i].y == max-1);
OCL_ASSERT(((T*)buf_data[2])[i].z == max-1);
OCL_ASSERT(((T*)buf_data[2])[i].w == n-i);
}else
OCL_ASSERT(0);
}
OCL_UNMAP_BUFFER(2);
// test add and sub overflow when src1 is max:
// uadd.with.overflow: max + max
// usub.with.overflow: 0 - max
OCL_MAP_BUFFER(0);
for (uint32_t i = 0; i < n; ++i) {
if(func_type == 0) {
((T*)buf_data[0])[i].x = max;
((T*)buf_data[0])[i].y = max;
((T*)buf_data[0])[i].z = max;
((T*)buf_data[0])[i].w = i;
}else if(func_type == 1) {
((T*)buf_data[0])[i].x = 0;
((T*)buf_data[0])[i].y = 0;
((T*)buf_data[0])[i].z = 0;
((T*)buf_data[0])[i].w = n+2-i;
}else
OCL_ASSERT(0);
}
OCL_UNMAP_BUFFER(0);
OCL_MAP_BUFFER(1);
for (uint32_t i = 0; i < n; ++i) {
((T*)buf_data[1])[i].x = max;
((T*)buf_data[1])[i].y = max;
((T*)buf_data[1])[i].z = max;
((T*)buf_data[1])[i].w = 1;
}
OCL_UNMAP_BUFFER(1);
globals[0] = n;
locals[0] = 16;
OCL_NDRANGE(1);
OCL_MAP_BUFFER(2);
for (uint32_t i = 0; i < 16; ++i) {
// printf("%u,%u,%u,%u\n", ((T*)buf_data[2])[i].x,((T*)buf_data[2])[i].y, ((T*)buf_data[2])[i].z, ((T*)buf_data[2])[i].w );
if(func_type == 0) {
OCL_ASSERT(((T*)buf_data[2])[i].x == max-1);
OCL_ASSERT(((T*)buf_data[2])[i].y == max);
OCL_ASSERT(((T*)buf_data[2])[i].z == max);
OCL_ASSERT(((T*)buf_data[2])[i].w == i+2);
}else if(func_type == 1) {
OCL_ASSERT(((T*)buf_data[2])[i].x == 1);
OCL_ASSERT(((T*)buf_data[2])[i].y == 0);
OCL_ASSERT(((T*)buf_data[2])[i].z == 0);
OCL_ASSERT(((T*)buf_data[2])[i].w == n-i);
}else
OCL_ASSERT(0);
}
OCL_UNMAP_BUFFER(2);
}
}
#define compiler_overflow_add(type, subtype, kernel, func_type) \
static void compiler_overflow_add_ ##type(void)\
{\
test<type, subtype>(# kernel, func_type);\
}\
MAKE_UTEST_FROM_FUNCTION(compiler_overflow_add_ ## type);
#define compiler_overflow_sub(type, subtype, kernel, func_type) \
static void compiler_overflow_sub_ ##type(void)\
{\
test<type, subtype>(# kernel, func_type);\
}\
MAKE_UTEST_FROM_FUNCTION(compiler_overflow_sub_ ## type);
compiler_overflow_add(ulong4, unsigned long, compiler_overflow_ulong4_add, 0)
compiler_overflow_add(uint4, uint32_t, compiler_overflow_uint4_add, 0)
compiler_overflow_add(ushort4, uint16_t, compiler_overflow_ushort4_add, 0)
compiler_overflow_add(uchar4, uint8_t, compiler_overflow_uchar4_add, 0)
// as llvm intrincs function doesn't support byte/short overflow,
// we just test uint overflow here.
compiler_overflow_sub(uint4, uint32_t, compiler_overflow_uint4_sub, 1)
|
