1 | //===-- Implementation of memcmp ------------------------------------------===// |
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 | #ifndef LLVM_LIBC_SRC_STRING_MEMORY_UTILS_INLINE_MEMCMP_H |
10 | #define LLVM_LIBC_SRC_STRING_MEMORY_UTILS_INLINE_MEMCMP_H |
11 | |
12 | #include "src/__support/macros/config.h" // LIBC_INLINE |
13 | #include "src/__support/macros/properties/architectures.h" // LIBC_TARGET_ARCH_IS_ |
14 | #include "src/string/memory_utils/utils.h" // Ptr, CPtr |
15 | |
16 | #include <stddef.h> // size_t |
17 | |
18 | #if defined(LIBC_TARGET_ARCH_IS_X86) |
19 | #include "src/string/memory_utils/x86_64/inline_memcmp.h" |
20 | #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_x86 |
21 | #elif defined(LIBC_TARGET_ARCH_IS_AARCH64) |
22 | #include "src/string/memory_utils/aarch64/inline_memcmp.h" |
23 | #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_aarch64 |
24 | #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV) |
25 | #include "src/string/memory_utils/riscv/inline_memcmp.h" |
26 | #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_riscv |
27 | #elif defined(LIBC_TARGET_ARCH_IS_ARM) || defined(LIBC_TARGET_ARCH_IS_GPU) |
28 | #include "src/string/memory_utils/generic/byte_per_byte.h" |
29 | #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_byte_per_byte |
30 | #else |
31 | #error "Unsupported architecture" |
32 | #endif |
33 | |
34 | namespace LIBC_NAMESPACE { |
35 | |
36 | [[gnu::flatten]] LIBC_INLINE int inline_memcmp(const void *p1, const void *p2, |
37 | size_t count) { |
38 | return static_cast<int>(LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP( |
39 | p1: reinterpret_cast<CPtr>(p1), p2: reinterpret_cast<CPtr>(p2), count)); |
40 | } |
41 | |
42 | } // namespace LIBC_NAMESPACE |
43 | |
44 | #undef LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP |
45 | |
46 | #endif // LLVM_LIBC_SRC_STRING_MEMORY_UTILS_INLINE_MEMCMP_H |
47 | |