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annotate lib/Support/Hashing.cpp @ 124:4fa72497ed5d

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fix
author mir3636
date Thu, 30 Nov 2017 20:04:56 +0900
parents 95c75e76d11b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 //===-------------- lib/Support/Hashing.cpp -------------------------------===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file provides implementation bits for the LLVM common hashing
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11 // infrastructure. Documentation and most of the other information is in the
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12 // header file.
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13 //
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14 //===----------------------------------------------------------------------===//
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15
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16 #include "llvm/ADT/Hashing.h"
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17
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18 using namespace llvm;
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19
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20 // Provide a definition and static initializer for the fixed seed. This
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21 // initializer should always be zero to ensure its value can never appear to be
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22 // non-zero, even during dynamic initialization.
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23 size_t llvm::hashing::detail::fixed_seed_override = 0;
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24
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25 // Implement the function for forced setting of the fixed seed.
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26 // FIXME: Use atomic operations here so that there is no data race.
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27 void llvm::set_fixed_execution_hash_seed(size_t fixed_value) {
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28 hashing::detail::fixed_seed_override = fixed_value;
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29 }