//===-------------- lib/Support/Hashing.cpp -------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file provides implementation bits for the LLVM common hashing // infrastructure. Documentation and most of the other information is in the // header file. // //===----------------------------------------------------------------------===// #include "llvm/ADT/Hashing.h" using namespace llvm; // Provide a definition and static initializer for the fixed seed. This // initializer should always be zero to ensure its value can never appear to be // non-zero, even during dynamic initialization. uint64_t llvm::hashing::detail::fixed_seed_override = 0; // Implement the function for forced setting of the fixed seed. // FIXME: Use atomic operations here so that there is no data race. void llvm::set_fixed_execution_hash_seed(uint64_t fixed_value) { hashing::detail::fixed_seed_override = fixed_value; } |