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c79ad935f0
Add missing includes. Swap C headers for their C++ counterparts. Remove pointless / unmaintainable include comments. This is even more the case when we are actually using IWYU, as if anyone wants to see the comments they can just get IWYU to generate them.
27 lines
842 B
C++
27 lines
842 B
C++
// Copyright (c) 2017-2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_COMPAT_CPUID_H
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#define BITCOIN_COMPAT_CPUID_H
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#if defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
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#define HAVE_GETCPUID
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#include <cpuid.h>
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#include <cstdint>
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// We can't use cpuid.h's __get_cpuid as it does not support subleafs.
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void static inline GetCPUID(uint32_t leaf, uint32_t subleaf, uint32_t& a, uint32_t& b, uint32_t& c, uint32_t& d)
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{
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#ifdef __GNUC__
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__cpuid_count(leaf, subleaf, a, b, c, d);
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#else
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__asm__ ("cpuid" : "=a"(a), "=b"(b), "=c"(c), "=d"(d) : "0"(leaf), "2"(subleaf));
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#endif
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}
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#endif // defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
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#endif // BITCOIN_COMPAT_CPUID_H
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