From 0b57cec536236d46e3dba9bd041533462f33dbb7 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Fri, 20 Dec 2019 19:53:05 +0000 Subject: Move all sources from the llvm project into contrib/llvm-project. This uses the new layout of the upstream repository, which was recently migrated to GitHub, and converted into a "monorepo". That is, most of the earlier separate sub-projects with their own branches and tags were consolidated into one top-level directory, and are now branched and tagged together. Updating the vendor area to match this layout is next. --- contrib/llvm-project/llvm/lib/Support/Hashing.cpp | 28 +++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 contrib/llvm-project/llvm/lib/Support/Hashing.cpp (limited to 'contrib/llvm-project/llvm/lib/Support/Hashing.cpp') diff --git a/contrib/llvm-project/llvm/lib/Support/Hashing.cpp b/contrib/llvm-project/llvm/lib/Support/Hashing.cpp new file mode 100644 index 000000000000..1b20a670434f --- /dev/null +++ b/contrib/llvm-project/llvm/lib/Support/Hashing.cpp @@ -0,0 +1,28 @@ +//===-------------- lib/Support/Hashing.cpp -------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// 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; +} -- cgit v1.2.3