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# xed-get-time.h

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    00001 /*BEGIN_LEGAL
    00002 Intel Open Source License
    00003
    00004 Copyright (c) 2002-2014 Intel Corporation. All rights reserved.
    00005
    00006 Redistribution and use in source and binary forms, with or without
    00007 modification, are permitted provided that the following conditions are
    00008 met:
    00009
    00010 Redistributions of source code must retain the above copyright notice,
    00011 this list of conditions and the following disclaimer.  Redistributions
    00012 in binary form must reproduce the above copyright notice, this list of
    00013 conditions and the following disclaimer in the documentation and/or
    00014 other materials provided with the distribution.  Neither the name of
    00015 the Intel Corporation nor the names of its contributors may be used to
    00016 endorse or promote products derived from this software without
    00017 specific prior written permission.
    00018
    00019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    00020 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    00021 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    00022 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR
    00023 ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00024 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    00025 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    00026 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    00027 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    00028 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    00029 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00030 END_LEGAL */
    00031
    00032 #if !defined(_XED_GET_TIME_H_)
    00033 #   define _XED_GET_TIME_H_
    00034
    00035 #   include "xed-portability.h"
    00036 #   include "xed-types.h"
    00037
    00038 #   if defined(__INTEL_COMPILER) && __INTEL_COMPILER > 810  && !defined(_M_IA64)
    00039 #      include <ia32intrin.h>
    00040 #   endif
    00041 #   if defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 810  && !defined(_M_IA64)
    00042 #      if __INTEL_COMPILER < 1000
    00043 #         pragma intrinsic(__rdtsc)
    00044 #      endif
    00045 #   endif
    00046 #   if !defined(__INTEL_COMPILER)
    00047        /* MSVS8 and later */
    00048 #      if defined(_MSC_VER) && _MSC_VER >= 1400 && !defined(_M_IA64)
    00049 #         include <intrin.h>
    00050 #         pragma intrinsic(__rdtsc)
    00051 #      endif
    00052 #   endif
    00053
    00054
    00059 static XED_INLINE  xed_uint64_t xed_get_time(void) {
    00060     xed_union64_t ticks;
    00061     // __STRICT_ANSI__ comes from the -std=c99
    00062 #   if defined(__GNUC__) //&& !defined(__STRICT_ANSI__)
    00063 #      if defined(__i386__) || defined(i386) || defined(i686) || defined(__x86_64__)
    00064           __asm__ volatile ("rdtsc":"=a" (ticks.s.lo32), "=d"(ticks.s.hi32));
    00065 #         define FOUND_RDTSC
    00066 #      endif
    00067 #   endif
    00068 #   if defined(__INTEL_COMPILER) &&  __INTEL_COMPILER>=810 && !defined(_M_IA64)
    00069        ticks.u64 = __rdtsc();
    00070 #      define FOUND_RDTSC
    00071 #   endif
    00072 #   if !defined(__INTEL_COMPILER)
    00073 #      if !defined(FOUND_RDTSC) && defined(_MSC_VER) && _MSC_VER >= 1400 && \
    00074                                !defined(_M_IA64) && !defined(_MANAGED)    /* MSVS7, 8 */
    00075           ticks.u64 = __rdtsc();
    00076 #         define FOUND_RDTSC
    00077 #      endif
    00078 #   endif
    00079 #   if !defined(FOUND_RDTSC)
    00080        ticks.u64 = 0;
    00081 #   endif
    00082     return ticks.u64;
    00083 }
    00084
    00085 #endif