1 // Copyright 2022 Google LLC
2 //
3 // This source code is licensed under the BSD-style license found in the
4 // LICENSE file in the root directory of this source tree.
5
6 #include <cstring>
7
8 #include <xnnpack/allocator.h>
9 #include <xnnpack/common.h>
10
11 #include <gtest/gtest.h>
12
TEST(JIT_MEMORY,allocate_and_release_empty_code)13 TEST(JIT_MEMORY, allocate_and_release_empty_code) {
14 ASSERT_EQ(xnn_status_success, xnn_initialize(/*allocator=*/nullptr));
15 xnn_code_buffer b;
16 ASSERT_EQ(xnn_status_success, xnn_allocate_code_memory(&b, XNN_DEFAULT_CODE_BUFFER_SIZE));
17 #if XNN_PLATFORM_JIT
18 ASSERT_EQ(xnn_status_success, xnn_finalize_code_memory(&b));
19 #endif // XNN_PLATFORM_JIT
20 ASSERT_EQ(xnn_status_success, xnn_release_code_memory(&b));
21 }
22
TEST(JIT_MEMORY,allocate_and_release_junk_code)23 TEST(JIT_MEMORY, allocate_and_release_junk_code) {
24 ASSERT_EQ(xnn_status_success, xnn_initialize(/*allocator=*/nullptr));
25 xnn_code_buffer b;
26 ASSERT_EQ(xnn_status_success, xnn_allocate_code_memory(&b, XNN_DEFAULT_CODE_BUFFER_SIZE));
27 std::string junk = "1234";
28 std::memcpy(b.start, junk.data(), junk.length());
29 b.size = junk.length();
30 #if XNN_PLATFORM_JIT
31 ASSERT_EQ(xnn_status_success, xnn_finalize_code_memory(&b));
32 ASSERT_GT(XNN_DEFAULT_CODE_BUFFER_SIZE, b.capacity);
33 #endif // XNN_PLATFORM_JIT
34 ASSERT_EQ(xnn_status_success, xnn_release_code_memory(&b));
35 ASSERT_EQ(nullptr, b.start);
36 ASSERT_EQ(0, b.size);
37 ASSERT_EQ(0, b.capacity);
38 }
39
TEST(JIT_MEMORY,allocate_and_release_code_buffer_with_no_capacity)40 TEST(JIT_MEMORY, allocate_and_release_code_buffer_with_no_capacity) {
41 ASSERT_EQ(xnn_status_success, xnn_initialize(/*allocator=*/nullptr));
42 xnn_code_buffer b;
43 b.capacity = 0;
44 ASSERT_EQ(xnn_status_success, xnn_release_code_memory(&b));
45 }
46
TEST(JIT_MEMORY,grow_memory)47 TEST(JIT_MEMORY, grow_memory) {
48 ASSERT_EQ(xnn_status_success, xnn_initialize(/*allocator=*/nullptr));
49 xnn_code_buffer b;
50 ASSERT_EQ(xnn_status_success, xnn_allocate_code_memory(&b, 8));
51 size_t original_capacity = b.capacity;
52 constexpr size_t junk_len = 4;
53 b.size += junk_len;
54 ASSERT_EQ(b.size, 4);
55 const uintptr_t old_code = reinterpret_cast<uintptr_t>(b.start);
56
57 // This should be a no-op, since we have enough space.
58 ASSERT_EQ(xnn_status_success, xnn_reserve_code_memory(&b, 4));
59 ASSERT_EQ(old_code, reinterpret_cast<uintptr_t>(b.start));
60 ASSERT_EQ(original_capacity, b.capacity);
61
62 // Simulate copying bytes until the memory is full.
63 b.size += original_capacity - junk_len;
64 ASSERT_EQ(b.size, b.capacity);
65
66 const size_t old_size = b.size;
67 ASSERT_EQ(xnn_status_success, xnn_reserve_code_memory(&b, 4));
68
69 // After growing, the new capacity should be bigger than the old one.
70 ASSERT_LT(original_capacity, b.capacity);
71 // At least 4 bytes free.
72 ASSERT_GE(b.capacity, b.size + 4);
73 // But size stays the same.
74 ASSERT_EQ(old_size, b.size);
75
76 ASSERT_EQ(xnn_status_success, xnn_release_code_memory(&b));
77 }
78
TEST(JIT_MEMORY,finalize_twice)79 TEST(JIT_MEMORY, finalize_twice) {
80 ASSERT_EQ(xnn_status_success, xnn_initialize(/*allocator=*/nullptr));
81 xnn_code_buffer b;
82 ASSERT_EQ(xnn_status_success, xnn_allocate_code_memory(&b, XNN_DEFAULT_CODE_BUFFER_SIZE));
83 const std::string junk = "1234";
84 std::memcpy(b.start, junk.data(), junk.length());
85 b.size += junk.length();
86 ASSERT_EQ(b.size, 4);
87
88 #if XNN_PLATFORM_JIT
89 ASSERT_EQ(xnn_status_success, xnn_finalize_code_memory(&b));
90 #endif
91 const size_t capacity = b.capacity;
92 // Finalizing twice does not error.
93 #if XNN_PLATFORM_JIT
94 ASSERT_EQ(xnn_status_success, xnn_finalize_code_memory(&b));
95 #endif
96 // Capacity does not change.
97 ASSERT_EQ(capacity, b.capacity);
98 ASSERT_EQ(4, b.size);
99
100 ASSERT_EQ(xnn_status_success, xnn_release_code_memory(&b));
101 }
102