29 lines
1.2 KiB
C++
29 lines
1.2 KiB
C++
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//===-------------- lib/Support/Hashing.cpp -------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides implementation bits for the LLVM common hashing
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// infrastructure. Documentation and most of the other information is in the
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// header file.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/Hashing.h"
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using namespace llvm;
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// Provide a definition and static initializer for the fixed seed. This
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// initializer should always be zero to ensure its value can never appear to be
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// non-zero, even during dynamic initialization.
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uint64_t llvm::hashing::detail::fixed_seed_override = 0;
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// Implement the function for forced setting of the fixed seed.
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// FIXME: Use atomic operations here so that there is no data race.
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void llvm::set_fixed_execution_hash_seed(uint64_t fixed_value) {
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hashing::detail::fixed_seed_override = fixed_value;
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}
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