| 1 | //===-- GPU Implementation of realloc -------------------------------------===// |
|---|---|
| 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 | #include "src/stdlib/realloc.h" |
| 10 | |
| 11 | #include "src/__support/GPU/allocator.h" |
| 12 | #include "src/__support/common.h" |
| 13 | #include "src/__support/macros/config.h" |
| 14 | #include "src/string/memory_utils/inline_memcpy.h" |
| 15 | |
| 16 | namespace LIBC_NAMESPACE_DECL { |
| 17 | |
| 18 | LLVM_LIBC_FUNCTION(void *, realloc, (void *ptr, size_t size)) { |
| 19 | if (ptr == nullptr) |
| 20 | return gpu::allocate(size); |
| 21 | |
| 22 | void *newmem = gpu::allocate(size); |
| 23 | if (newmem == nullptr) |
| 24 | return nullptr; |
| 25 | |
| 26 | // This will copy garbage if it goes beyond the old allocation size. |
| 27 | inline_memcpy(newmem, ptr, size); |
| 28 | gpu::deallocate(ptr); |
| 29 | return newmem; |
| 30 | } |
| 31 | |
| 32 | } // namespace LIBC_NAMESPACE_DECL |
| 33 |