1*bf42a786SJoseph Huber //===-- GPU Implementation of aligned_alloc -------------------------------===// 2*bf42a786SJoseph Huber // 3*bf42a786SJoseph Huber // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*bf42a786SJoseph Huber // See https://llvm.org/LICENSE.txt for license information. 5*bf42a786SJoseph Huber // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*bf42a786SJoseph Huber // 7*bf42a786SJoseph Huber //===----------------------------------------------------------------------===// 8*bf42a786SJoseph Huber 9*bf42a786SJoseph Huber #include "src/stdlib/aligned_alloc.h" 10*bf42a786SJoseph Huber 11*bf42a786SJoseph Huber #include "src/__support/GPU/allocator.h" 12*bf42a786SJoseph Huber #include "src/__support/common.h" 13*bf42a786SJoseph Huber #include "src/__support/macros/config.h" 14*bf42a786SJoseph Huber 15*bf42a786SJoseph Huber namespace LIBC_NAMESPACE_DECL { 16*bf42a786SJoseph Huber 17*bf42a786SJoseph Huber LLVM_LIBC_FUNCTION(void *, aligned_alloc, (size_t alignment, size_t size)) { 18*bf42a786SJoseph Huber if ((alignment & -alignment) != alignment) 19*bf42a786SJoseph Huber return nullptr; 20*bf42a786SJoseph Huber 21*bf42a786SJoseph Huber void *ptr = gpu::allocate(size); 22*bf42a786SJoseph Huber if ((reinterpret_cast<uintptr_t>(ptr) & (alignment - 1)) != 0) { 23*bf42a786SJoseph Huber gpu::deallocate(ptr); 24*bf42a786SJoseph Huber return nullptr; 25*bf42a786SJoseph Huber } 26*bf42a786SJoseph Huber return ptr; 27*bf42a786SJoseph Huber } 28*bf42a786SJoseph Huber 29*bf42a786SJoseph Huber } // namespace LIBC_NAMESPACE_DECL 30