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| 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/attributes.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_dispatch |
| 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 | #else |
| 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 | #endif |
| 31 | |
| 32 | namespace LIBC_NAMESPACE_DECL { |
| 33 | |
| 34 | [[gnu::flatten]] LIBC_INLINE int inline_memcmp(const void *p1, const void *p2, |
| 35 | size_t count) { |
| 36 | return static_cast<int>(LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP( |
| 37 | reinterpret_cast<CPtr>(p1), reinterpret_cast<CPtr>(p2), count)); |
| 38 | } |
| 39 | |
| 40 | } // namespace LIBC_NAMESPACE_DECL |
| 41 | |
| 42 | #undef LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP |
| 43 | |
| 44 | #endif // LLVM_LIBC_SRC_STRING_MEMORY_UTILS_INLINE_MEMCMP_H |
| 45 |
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