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| 1 | //===-- Trivial builtin implementations ----------------------------------===// |
|---|---|
| 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_GENERIC_BUILTIN_H |
| 10 | #define LLVM_LIBC_SRC_STRING_MEMORY_UTILS_GENERIC_BUILTIN_H |
| 11 | |
| 12 | #include "src/__support/macros/attributes.h" // LIBC_INLINE |
| 13 | #include "src/__support/macros/config.h" // LIBC_NAMESPACE_DECL |
| 14 | #include "src/string/memory_utils/utils.h" // Ptr, CPtr |
| 15 | |
| 16 | #include <stddef.h> // size_t |
| 17 | |
| 18 | namespace LIBC_NAMESPACE_DECL { |
| 19 | |
| 20 | #if !__has_builtin(__builtin_memcpy) || !__has_builtin(__builtin_memset) || \ |
| 21 | !__has_builtin(__builtin_memmove) |
| 22 | #error "Builtin not defined"); |
| 23 | #endif |
| 24 | |
| 25 | [[maybe_unused]] LIBC_INLINE void |
| 26 | inline_memcpy_builtin(Ptr dst, CPtr src, size_t count, size_t offset = 0) { |
| 27 | __builtin_memcpy(dst + offset, src + offset, count); |
| 28 | } |
| 29 | |
| 30 | [[maybe_unused]] LIBC_INLINE void inline_memmove_builtin(Ptr dst, CPtr src, |
| 31 | size_t count) { |
| 32 | __builtin_memmove(dst, src, count); |
| 33 | } |
| 34 | |
| 35 | [[maybe_unused]] LIBC_INLINE static void |
| 36 | inline_memset_builtin(Ptr dst, uint8_t value, size_t count, size_t offset = 0) { |
| 37 | __builtin_memset(dst + offset, value, count); |
| 38 | } |
| 39 | |
| 40 | } // namespace LIBC_NAMESPACE_DECL |
| 41 | |
| 42 | #endif // LLVM_LIBC_SRC_STRING_MEMORY_UTILS_GENERIC_BUILTIN_H |
| 43 |
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