1 | //===-- Unittests for op_ files -------------------------------------------===// |
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 | #include "memory_check_utils.h" |
10 | #include "src/__support/macros/config.h" |
11 | #include "src/__support/macros/properties/os.h" |
12 | #include "src/__support/macros/properties/types.h" // LIBC_TYPES_HAS_INT64 |
13 | #include "src/string/memory_utils/op_aarch64.h" |
14 | #include "src/string/memory_utils/op_builtin.h" |
15 | #include "src/string/memory_utils/op_generic.h" |
16 | #include "src/string/memory_utils/op_riscv.h" |
17 | #include "src/string/memory_utils/op_x86.h" |
18 | #include "test/UnitTest/Test.h" |
19 | |
20 | namespace LIBC_NAMESPACE_DECL { |
21 | |
22 | template <typename T> struct has_head_tail { |
23 | template <typename C> static char sfinae(decltype(&C::head_tail)); |
24 | template <typename C> static uint16_t sfinae(...); |
25 | static constexpr bool value = sizeof(sfinae<T>(0)) == sizeof(char); |
26 | }; |
27 | |
28 | template <typename T> struct has_loop_and_tail { |
29 | template <typename C> static char sfinae(decltype(&C::loop_and_tail)); |
30 | template <typename C> static uint16_t sfinae(...); |
31 | static constexpr bool value = sizeof(sfinae<T>(0)) == sizeof(char); |
32 | }; |
33 | |
34 | // Allocates two Buffer and extracts two spans out of them, one |
35 | // aligned and one misaligned. Tests are run on both spans. |
36 | struct Buffers { |
37 | Buffers(size_t size) |
38 | : aligned_buffer(size, Aligned::YES), |
39 | misaligned_buffer(size, Aligned::NO) {} |
40 | |
41 | // Returns two spans of 'size' bytes. The first is aligned on |
42 | // Buffer::kAlign and the second one is unaligned. |
43 | cpp::array<cpp::span<char>, 2> spans() { |
44 | return {aligned_buffer.span(), misaligned_buffer.span()}; |
45 | } |
46 | |
47 | Buffer aligned_buffer; |
48 | Buffer misaligned_buffer; |
49 | }; |
50 | |
51 | using MemcpyImplementations = testing::TypeList< |
52 | #ifdef LLVM_LIBC_HAS_BUILTIN_MEMCPY_INLINE |
53 | builtin::Memcpy<1>, // |
54 | builtin::Memcpy<2>, // |
55 | builtin::Memcpy<3>, // |
56 | builtin::Memcpy<4>, // |
57 | builtin::Memcpy<8>, // |
58 | builtin::Memcpy<16>, // |
59 | builtin::Memcpy<32>, // |
60 | builtin::Memcpy<64> |
61 | #endif // LLVM_LIBC_HAS_BUILTIN_MEMCPY_INLINE |
62 | >; |
63 | |
64 | // Convenient helper to turn a span into cpp::byte *. |
65 | static inline cpp::byte *as_byte(cpp::span<char> span) { |
66 | return reinterpret_cast<cpp::byte *>(span.data()); |
67 | } |
68 | |
69 | // Adapt CheckMemcpy signature to op implementation signatures. |
70 | template <auto FnImpl> |
71 | void CopyAdaptor(cpp::span<char> dst, cpp::span<char> src, size_t size) { |
72 | FnImpl(as_byte(dst), as_byte(src), size); |
73 | } |
74 | template <size_t Size, auto FnImpl> |
75 | void CopyBlockAdaptor(cpp::span<char> dst, cpp::span<char> src, size_t size) { |
76 | FnImpl(as_byte(dst), as_byte(src)); |
77 | } |
78 | |
79 | TYPED_TEST(LlvmLibcOpTest, Memcpy, MemcpyImplementations) { |
80 | using Impl = ParamType; |
81 | constexpr size_t kSize = Impl::SIZE; |
82 | { // Test block operation |
83 | static constexpr auto BlockImpl = CopyBlockAdaptor<kSize, Impl::block>; |
84 | Buffers SrcBuffer(kSize); |
85 | Buffers DstBuffer(kSize); |
86 | for (auto src : SrcBuffer.spans()) { |
87 | Randomize(src); |
88 | for (auto dst : DstBuffer.spans()) { |
89 | ASSERT_TRUE(CheckMemcpy<BlockImpl>(dst, src, kSize)); |
90 | } |
91 | } |
92 | } |
93 | { // Test head tail operations from kSize to 2 * kSize. |
94 | static constexpr auto HeadTailImpl = CopyAdaptor<Impl::head_tail>; |
95 | Buffer SrcBuffer(2 * kSize); |
96 | Buffer DstBuffer(2 * kSize); |
97 | Randomize(SrcBuffer.span()); |
98 | for (size_t size = kSize; size < 2 * kSize; ++size) { |
99 | auto src = SrcBuffer.span().subspan(0, size); |
100 | auto dst = DstBuffer.span().subspan(0, size); |
101 | ASSERT_TRUE(CheckMemcpy<HeadTailImpl>(dst, src, size)); |
102 | } |
103 | } |
104 | { // Test loop operations from kSize to 3 * kSize. |
105 | if constexpr (kSize > 1) { |
106 | static constexpr auto LoopImpl = CopyAdaptor<Impl::loop_and_tail>; |
107 | Buffer SrcBuffer(3 * kSize); |
108 | Buffer DstBuffer(3 * kSize); |
109 | Randomize(SrcBuffer.span()); |
110 | for (size_t size = kSize; size < 3 * kSize; ++size) { |
111 | auto src = SrcBuffer.span().subspan(0, size); |
112 | auto dst = DstBuffer.span().subspan(0, size); |
113 | ASSERT_TRUE(CheckMemcpy<LoopImpl>(dst, src, size)); |
114 | } |
115 | } |
116 | } |
117 | } |
118 | |
119 | using MemsetImplementations = testing::TypeList< |
120 | #ifdef LLVM_LIBC_HAS_BUILTIN_MEMSET_INLINE |
121 | builtin::Memset<1>, // |
122 | builtin::Memset<2>, // |
123 | builtin::Memset<3>, // |
124 | builtin::Memset<4>, // |
125 | builtin::Memset<8>, // |
126 | builtin::Memset<16>, // |
127 | builtin::Memset<32>, // |
128 | builtin::Memset<64>, |
129 | #endif |
130 | #ifdef LIBC_TYPES_HAS_INT64 |
131 | generic::Memset<uint64_t>, generic::Memset<cpp::array<uint64_t, 2>>, |
132 | #endif // LIBC_TYPES_HAS_INT64 |
133 | #ifdef __AVX512F__ |
134 | generic::Memset<generic_v512>, generic::Memset<cpp::array<generic_v512, 2>>, |
135 | #endif |
136 | #ifdef __AVX__ |
137 | generic::Memset<generic_v256>, generic::Memset<cpp::array<generic_v256, 2>>, |
138 | #endif |
139 | #ifdef __SSE2__ |
140 | generic::Memset<generic_v128>, generic::Memset<cpp::array<generic_v128, 2>>, |
141 | #endif |
142 | generic::Memset<uint32_t>, generic::Memset<cpp::array<uint32_t, 2>>, // |
143 | generic::Memset<uint16_t>, generic::Memset<cpp::array<uint16_t, 2>>, // |
144 | generic::Memset<uint8_t>, generic::Memset<cpp::array<uint8_t, 2>>, // |
145 | generic::MemsetSequence<uint8_t, uint8_t>, // |
146 | generic::MemsetSequence<uint16_t, uint8_t>, // |
147 | generic::MemsetSequence<uint32_t, uint16_t, uint8_t> // |
148 | >; |
149 | |
150 | // Adapt CheckMemset signature to op implementation signatures. |
151 | template <auto FnImpl> |
152 | void SetAdaptor(cpp::span<char> dst, uint8_t value, size_t size) { |
153 | FnImpl(as_byte(dst), value, size); |
154 | } |
155 | template <size_t Size, auto FnImpl> |
156 | void SetBlockAdaptor(cpp::span<char> dst, uint8_t value, size_t size) { |
157 | FnImpl(as_byte(dst), value); |
158 | } |
159 | |
160 | TYPED_TEST(LlvmLibcOpTest, Memset, MemsetImplementations) { |
161 | using Impl = ParamType; |
162 | constexpr size_t kSize = Impl::SIZE; |
163 | { // Test block operation |
164 | static constexpr auto BlockImpl = SetBlockAdaptor<kSize, Impl::block>; |
165 | Buffers DstBuffer(kSize); |
166 | for (uint8_t value : cpp::array<uint8_t, 3>{0, 1, 255}) { |
167 | for (auto dst : DstBuffer.spans()) { |
168 | ASSERT_TRUE(CheckMemset<BlockImpl>(dst, value, kSize)); |
169 | } |
170 | } |
171 | } |
172 | if constexpr (has_head_tail<Impl>::value) { |
173 | // Test head tail operations from kSize to 2 * kSize. |
174 | static constexpr auto HeadTailImpl = SetAdaptor<Impl::head_tail>; |
175 | Buffer DstBuffer(2 * kSize); |
176 | for (size_t size = kSize; size < 2 * kSize; ++size) { |
177 | const uint8_t value = size % 10; |
178 | auto dst = DstBuffer.span().subspan(0, size); |
179 | ASSERT_TRUE(CheckMemset<HeadTailImpl>(dst, value, size)); |
180 | } |
181 | } |
182 | if constexpr (has_loop_and_tail<Impl>::value) { |
183 | // Test loop operations from kSize to 3 * kSize. |
184 | if constexpr (kSize > 1) { |
185 | static constexpr auto LoopImpl = SetAdaptor<Impl::loop_and_tail>; |
186 | Buffer DstBuffer(3 * kSize); |
187 | for (size_t size = kSize; size < 3 * kSize; ++size) { |
188 | const uint8_t value = size % 10; |
189 | auto dst = DstBuffer.span().subspan(0, size); |
190 | ASSERT_TRUE((CheckMemset<LoopImpl>(dst, value, size))); |
191 | } |
192 | } |
193 | } |
194 | } |
195 | |
196 | #ifdef LIBC_TARGET_ARCH_IS_X86_64 |
197 | // Prevent GCC warning due to ignored __aligned__ attributes when passing x86 |
198 | // SIMD types as template arguments. |
199 | #pragma GCC diagnostic push |
200 | #pragma GCC diagnostic ignored "-Wignored-attributes" |
201 | #endif // LIBC_TARGET_ARCH_IS_X86_64 |
202 | |
203 | using BcmpImplementations = testing::TypeList< |
204 | #ifdef LIBC_TARGET_ARCH_IS_X86_64 |
205 | #ifdef __SSE4_1__ |
206 | generic::Bcmp<__m128i>, |
207 | #endif // __SSE4_1__ |
208 | #ifdef __AVX2__ |
209 | generic::Bcmp<__m256i>, |
210 | #endif // __AVX2__ |
211 | #ifdef __AVX512BW__ |
212 | generic::Bcmp<__m512i>, |
213 | #endif // __AVX512BW__ |
214 | |
215 | #endif // LIBC_TARGET_ARCH_IS_X86_64 |
216 | #ifdef LIBC_TARGET_ARCH_IS_AARCH64 |
217 | aarch64::Bcmp<16>, // |
218 | aarch64::Bcmp<32>, |
219 | #endif |
220 | #ifndef LIBC_TARGET_ARCH_IS_ARM // Removing non uint8_t types for ARM |
221 | generic::Bcmp<uint16_t>, |
222 | generic::Bcmp<uint32_t>, // |
223 | #ifdef LIBC_TYPES_HAS_INT64 |
224 | generic::Bcmp<uint64_t>, |
225 | #endif // LIBC_TYPES_HAS_INT64 |
226 | generic::BcmpSequence<uint16_t, uint8_t>, |
227 | generic::BcmpSequence<uint32_t, uint8_t>, // |
228 | generic::BcmpSequence<uint32_t, uint16_t>, // |
229 | generic::BcmpSequence<uint32_t, uint16_t, uint8_t>, |
230 | #endif // LIBC_TARGET_ARCH_IS_ARM |
231 | generic::BcmpSequence<uint8_t, uint8_t>, |
232 | generic::BcmpSequence<uint8_t, uint8_t, uint8_t>, // |
233 | generic::Bcmp<uint8_t>>; |
234 | |
235 | #ifdef LIBC_TARGET_ARCH_IS_X86_64 |
236 | #pragma GCC diagnostic pop |
237 | #endif // LIBC_TARGET_ARCH_IS_X86_64 |
238 | |
239 | // Adapt CheckBcmp signature to op implementation signatures. |
240 | template <auto FnImpl> |
241 | int CmpAdaptor(cpp::span<char> p1, cpp::span<char> p2, size_t size) { |
242 | return (int)FnImpl(as_byte(p1), as_byte(p2), size); |
243 | } |
244 | template <size_t Size, auto FnImpl> |
245 | int CmpBlockAdaptor(cpp::span<char> p1, cpp::span<char> p2, size_t size) { |
246 | return (int)FnImpl(as_byte(p1), as_byte(p2)); |
247 | } |
248 | |
249 | TYPED_TEST(LlvmLibcOpTest, Bcmp, BcmpImplementations) { |
250 | using Impl = ParamType; |
251 | constexpr size_t kSize = Impl::SIZE; |
252 | { // Test block operation |
253 | static constexpr auto BlockImpl = CmpBlockAdaptor<kSize, Impl::block>; |
254 | Buffers Buffer1(kSize); |
255 | Buffers Buffer2(kSize); |
256 | for (auto span1 : Buffer1.spans()) { |
257 | Randomize(span1); |
258 | for (auto span2 : Buffer2.spans()) |
259 | ASSERT_TRUE((CheckBcmp<BlockImpl>(span1, span2, kSize))); |
260 | } |
261 | } |
262 | if constexpr (has_head_tail<Impl>::value) { |
263 | // Test head tail operations from kSize to 2 * kSize. |
264 | static constexpr auto HeadTailImpl = CmpAdaptor<Impl::head_tail>; |
265 | Buffer Buffer1(2 * kSize); |
266 | Buffer Buffer2(2 * kSize); |
267 | Randomize(Buffer1.span()); |
268 | for (size_t size = kSize; size < 2 * kSize; ++size) { |
269 | auto span1 = Buffer1.span().subspan(0, size); |
270 | auto span2 = Buffer2.span().subspan(0, size); |
271 | ASSERT_TRUE((CheckBcmp<HeadTailImpl>(span1, span2, size))); |
272 | } |
273 | } |
274 | if constexpr (has_loop_and_tail<Impl>::value) { |
275 | // Test loop operations from kSize to 3 * kSize. |
276 | if constexpr (kSize > 1) { |
277 | static constexpr auto LoopImpl = CmpAdaptor<Impl::loop_and_tail>; |
278 | Buffer Buffer1(3 * kSize); |
279 | Buffer Buffer2(3 * kSize); |
280 | Randomize(Buffer1.span()); |
281 | for (size_t size = kSize; size < 3 * kSize; ++size) { |
282 | auto span1 = Buffer1.span().subspan(0, size); |
283 | auto span2 = Buffer2.span().subspan(0, size); |
284 | ASSERT_TRUE((CheckBcmp<LoopImpl>(span1, span2, size))); |
285 | } |
286 | } |
287 | } |
288 | } |
289 | |
290 | #ifdef LIBC_TARGET_ARCH_IS_X86_64 |
291 | // Prevent GCC warning due to ignored __aligned__ attributes when passing x86 |
292 | // SIMD types as template arguments. |
293 | #pragma GCC diagnostic push |
294 | #pragma GCC diagnostic ignored "-Wignored-attributes" |
295 | #endif // LIBC_TARGET_ARCH_IS_X86_64 |
296 | |
297 | using MemcmpImplementations = testing::TypeList< |
298 | #if defined(LIBC_TARGET_ARCH_IS_X86_64) && !defined(LIBC_TARGET_OS_IS_WINDOWS) |
299 | #ifdef __SSE2__ |
300 | generic::Memcmp<__m128i>, // |
301 | #endif |
302 | #ifdef __AVX2__ |
303 | generic::Memcmp<__m256i>, // |
304 | #endif |
305 | #ifdef __AVX512BW__ |
306 | generic::Memcmp<__m512i>, // |
307 | #endif |
308 | #endif // LIBC_TARGET_ARCH_IS_X86_64 |
309 | #ifdef LIBC_TARGET_ARCH_IS_AARCH64 |
310 | generic::Memcmp<uint8x16_t>, // |
311 | generic::Memcmp<uint8x16x2_t>, |
312 | #endif |
313 | #ifndef LIBC_TARGET_ARCH_IS_ARM // Removing non uint8_t types for ARM |
314 | generic::Memcmp<uint16_t>, |
315 | generic::Memcmp<uint32_t>, // |
316 | #ifdef LIBC_TYPES_HAS_INT64 |
317 | generic::Memcmp<uint64_t>, |
318 | #endif // LIBC_TYPES_HAS_INT64 |
319 | generic::MemcmpSequence<uint16_t, uint8_t>, |
320 | generic::MemcmpSequence<uint32_t, uint16_t, uint8_t>, // |
321 | #endif // LIBC_TARGET_ARCH_IS_ARM |
322 | generic::MemcmpSequence<uint8_t, uint8_t>, |
323 | generic::MemcmpSequence<uint8_t, uint8_t, uint8_t>, |
324 | generic::Memcmp<uint8_t>>; |
325 | |
326 | #ifdef LIBC_TARGET_ARCH_IS_X86_64 |
327 | #pragma GCC diagnostic pop |
328 | #endif // LIBC_TARGET_ARCH_IS_X86_64 |
329 | |
330 | TYPED_TEST(LlvmLibcOpTest, Memcmp, MemcmpImplementations) { |
331 | using Impl = ParamType; |
332 | constexpr size_t kSize = Impl::SIZE; |
333 | { // Test block operation |
334 | static constexpr auto BlockImpl = CmpBlockAdaptor<kSize, Impl::block>; |
335 | Buffers Buffer1(kSize); |
336 | Buffers Buffer2(kSize); |
337 | for (auto span1 : Buffer1.spans()) { |
338 | Randomize(span1); |
339 | for (auto span2 : Buffer2.spans()) |
340 | ASSERT_TRUE((CheckMemcmp<BlockImpl>(span1, span2, kSize))); |
341 | } |
342 | } |
343 | if constexpr (has_head_tail<Impl>::value) { |
344 | // Test head tail operations from kSize to 2 * kSize. |
345 | static constexpr auto HeadTailImpl = CmpAdaptor<Impl::head_tail>; |
346 | Buffer Buffer1(2 * kSize); |
347 | Buffer Buffer2(2 * kSize); |
348 | Randomize(Buffer1.span()); |
349 | for (size_t size = kSize; size < 2 * kSize; ++size) { |
350 | auto span1 = Buffer1.span().subspan(0, size); |
351 | auto span2 = Buffer2.span().subspan(0, size); |
352 | ASSERT_TRUE((CheckMemcmp<HeadTailImpl>(span1, span2, size))); |
353 | } |
354 | } |
355 | if constexpr (has_loop_and_tail<Impl>::value) { |
356 | // Test loop operations from kSize to 3 * kSize. |
357 | if constexpr (kSize > 1) { |
358 | static constexpr auto LoopImpl = CmpAdaptor<Impl::loop_and_tail>; |
359 | Buffer Buffer1(3 * kSize); |
360 | Buffer Buffer2(3 * kSize); |
361 | Randomize(Buffer1.span()); |
362 | for (size_t size = kSize; size < 3 * kSize; ++size) { |
363 | auto span1 = Buffer1.span().subspan(0, size); |
364 | auto span2 = Buffer2.span().subspan(0, size); |
365 | ASSERT_TRUE((CheckMemcmp<LoopImpl>(span1, span2, size))); |
366 | } |
367 | } |
368 | } |
369 | } |
370 | |
371 | } // namespace LIBC_NAMESPACE_DECL |
372 | |