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//===-------------- 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;