blob: a8656d1e791e846f1ac24ad0ee5c1a95b6b238df [file] [log] [blame]
//===-- Implementation of memset_explicit ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/string/memset_explicit.h"
#include "src/__support/common.h"
#include "src/string/memory_utils/inline_memset.h"
namespace LIBC_NAMESPACE {
[[gnu::noinline]] LLVM_LIBC_FUNCTION(void *, memset_explicit,
(void *dst, int value, size_t count)) {
// Use the inline memset function to set the memory.
inline_memset(dst, static_cast<uint8_t>(value), count);
// avoid dead store elimination
// The asm itself should also be sufficient to behave as a compiler barrier.
asm("" : : "r"(dst) : "memory");
return dst;
}
} // namespace LIBC_NAMESPACE