Files
linux-packaging-mono/external/llvm-project/openmp/offload/src/rdtsc.h
Xamarin Public Jenkins (auto-signing) 468663ddbb Imported Upstream version 6.10.0.49
Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b
2020-01-16 16:38:04 +00:00

18 lines
510 B
C

//===----------------------------------------------------------------------===//
//
// 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;
}