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