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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.txt for details.
//
//===----------------------------------------------------------------------===//
#include <stdint.h>
uint64_t _rdtsc()
{
uint32_t eax, edx;
asm volatile ("rdtsc" : "=a" (eax), "=d" (edx));
return ((uint64_t)edx << 32) | eax;
}