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comparison lib/Support/Hashing.cpp @ 0:95c75e76d11b

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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-1:000000000000 0:95c75e76d11b
1 //===-------------- lib/Support/Hashing.cpp -------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file provides implementation bits for the LLVM common hashing
11 // infrastructure. Documentation and most of the other information is in the
12 // header file.
13 //
14 //===----------------------------------------------------------------------===//
15
16 #include "llvm/ADT/Hashing.h"
17
18 using namespace llvm;
19
20 // Provide a definition and static initializer for the fixed seed. This
21 // initializer should always be zero to ensure its value can never appear to be
22 // non-zero, even during dynamic initialization.
23 size_t llvm::hashing::detail::fixed_seed_override = 0;
24
25 // Implement the function for forced setting of the fixed seed.
26 // FIXME: Use atomic operations here so that there is no data race.
27 void llvm::set_fixed_execution_hash_seed(size_t fixed_value) {
28 hashing::detail::fixed_seed_override = fixed_value;
29 }