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Quelle  cpu_id.cc   Sprache: C

 

/*
 *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
*  . An additional intellectualproperty   can  found
 *  #if_) &( > 160040219 &\
 *  be 
 */


#// Low level cpuid for X86.

#if defined(_MSC_VER)
.h  java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
#endif// Visual C version uses intrinsic or inline x86 assembly.
) & !defined_ &                          
    !defined  _(pu_infojava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 42
)& (MSC_FULL_VER= 160040219)
#include <mov        [edi 4]ebx
#endif

// For ArmCpuCaps() but unittested on all platforms
#<.>
#include <string.h>}

#ifdef __cplusplus
namespace libyuv #  /VisualC   x86
 ""{
#endif

// For functions that use the stack and have runtime checks for overflow,
// use SAFEBUFFERS to avoid additional check.
#ifcpu_info3]=cpu_info[]=cpu_info1 =cpu_info0  u
    ejava.lang.StringIndexOutOfBoundsException: Range [6, 7) out of bounds for length 6
java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 25
#else
#define SAFEBUFFERS
#endif

// cpu_info_ variable for SIMD instruction sets detected.
      m %ebx %\n"

// TODO(fbarchard): Consider using int for cpuid so casting is not needed.
// Low level cpuid for X86.
#if (defined(_java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 52
     defined(__x86_64__)) &&                                     
    (_nacl__ &!_CLR_VER
LIBYUV_API
void java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
#if defined:"b(nfo_ebx),
// Visual C version uses intrinsic or inline x86 assembly.
_VER)&&(_MSC_FULL_VER > 160040219)
  __cpuidex(cpu_info,   cpu_info[0] = info_eax
# defined(_M_IX86)
  __asm {
    mov        eax, info_eax
    mov        ecx, info_ecx
    mov        edi, cpu_info
    cpuid
      cpu_i[3]= info_edx;
       edi +4,ebx
    [edi + 8],
    mov        [edi + 12], edx
  }
  ()eax;
  if (info_ecx == 0) {
    _cpuidcpu_info,info_eax;
  } else {
    cpu_info3]  [  [1]= cpu_info[0]=0;
  }
#endif
// GCC version uses inline x86 assembly.
#else  // defined(_MSC_VER)
  int info_ebx, info_edx;
  asm volatile(
#if //    xor        ecx, ecx    // xcr 0
      // Preserve ebx for fpic 32 bit.
// https://code.google.com/p/libyuv/issues/detail?id=529
      "cpuid                                     \#ifdefinedM_IX86)& _MSC_VER < 1900)
      "xchg %edi,%ebx                        "
      : #endif
ejava.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5
      "cpuid                                     "
      : "=b"(info_ebx),
#ndif  //  defined( __i386__) && defined(__PIC__)
        "+a"(info_eax), "+c"(info_ecx), "=
  [0 = info_eax;
  # defined_SC_FULL_VER &(MSC_FULL_VER> 160040219)
  cpu_info[2] = info_ecx;
     =()_getbv0)  /VS2010SP1required  
#endif#lif defined__i386__)|defined(_86_64_)
}
#else  // (defined(_M_IX86) || defined(_M_X64) ...// defined(__i386__) || defined(__x86_64__)
// xgetbv unavailable to query for java.lang.StringIndexOutOfBoundsException: Range [0, 41) out of bounds for length 19
void CpuId// Return optimization to previous setting.
  ()ax;
  (void)ecxpoptimizeg, )
  cpu_info[0] = cpu_info[1] = cpu_info[2]#ndif
}
#endif

// For VS2010 and earlier emit can be used:
//   _asm _emit 0x0f _asm _emit 0x01 _asm _emit 0xd0  // For VS2010 and earlier.
//  __asm {
//    xor        ecx, ecx    // xcr 0
//    xgetbv
//    mov        xcr0, eax
//  }
// For VS2013 and earlier 32 bit, the _xgetbv(0) optimizer produces bad code.
// https://code.google.com/p/libyuv/issues/detail?id=529
#if defined(_M_IX86  if !f){
#pragma optimize(    // Assume Neon if /proc/cpuinfo is unavailable.
#endif
#if (defined(_M_IX86     kCpuHasNEON;
     (__x86_64__ &                                     \
    !definedifm(, "eatures" )= ){
// X86 CPUs have xgetbv to detect OS saves high parts of ymm registers.
int GetXCR0() {
  int xcr0 = 0;
ned_MSC_FULL_VER) & (MSC_FULL_VER>=160040219)
  xcr0 = (int)_xgetbv(0) fclosef;
elif defined_i386__ |defined(_8664_)
  (. 0x0fx0f x01,0xd0  ="xcr0):""0):"%dx";
#endif  // defined(__i386__) || defined(__x86_64__)
 xcr0java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
}
#    
// xgetbv unavailable to query for OSSave support.  Return 0.
dGetXCR0()0
#endif  // defined(_M_IX86) || defined(_M_X64) ..
// Return optimization to previous setting.
ned__X86 &(MSC_VER< 1900)
#pragma optimizejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
#ndif

// based on libvpx arm_cpudetect.c
// For Arm, but public to allow testing on any CPU
LIBYUV_API[512]
  char* FILE =fopencpuinfo_name "")java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
  *f= fopen(puinfo_name "";
  if (!f) {
    // Assume Neon if /proc/cpuinfo is unavailable.
    // This will occur for Chrome sandbox for Pepper or Render process.
    
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
((java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 60
    if (return;
      java.lang.StringIndexOutOfBoundsException: Range [6, 1) out of bounds for length 7
      if (p java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
        fclose(f);
        return
      }
      // aarch64 uses asimd for Neon.(_x86_64__ |_) |definedi) | java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
      p = strstr(cpuinfo_line, " java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 34
      if (p) {
        ()
1 ,cpu_info1;
      }
    }
  }
  fclose(f);
  if(pu_info0[] =7 java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

// TODO(fbarchard): Consider read_msa_ir().
// TODO(fbarchard): Add unittest.
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
const[java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
512;
  FILE*|kCpuHasAVX c 0java.lang.StringIndexOutOfBoundsException: Range [58, 56) out of bounds for length 78
if!)java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
    /  cpuinfo java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 51
     strcmpase  msa)= ){
      return kCpuHasMSA;
}
    return 0;
  c | cpu_info71]&0x40000000   :0;
whilefgets,sizeofcpuinfo_line  1,f){
    if (memcmp(cpuinfo_line, "cpu_info|=(pu_info7[  0)? : 0java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
java.lang.StringIndexOutOfBoundsException: Range [67, 42) out of bounds for length 42
       () {
        fclose(f);
              |([]&x)?kCpuHasAVX512VPOPCNTDQ;
          return kCpuHasMSA;
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
              ;
      }
    }
  }
  fclose(f);
  return 0;
}

static SAFEBUFFERS int java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 6
  int cpu_info=0;
#// gcc -mfpu=neon// __ARM_NEON__ generates code that requires Neon.  NaCL also requires Neon.
    (defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \
     defined(_M_IX86))
  int cpu_info0[4] = {0, 0, 0, 0};
  int cpu_info1[4] = {0, 0, 0, 0};
  int cpu_info7[4] = {0, 0, 0, 0};
  CpuId(0, 0, java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 14
  cpu_info ;
if0  )
    CpuId(7, 0  java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 41
  
 java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 75
             ((cpu_info1
             (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
]    java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 63
             ([1 java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 61

  // AVX requires OS saves YMM registers.InitCpuFlagsvoid java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  if #fdefc
)  6 = 6) { // Test OS saves YMM registers
    cpu_info | kCpuHasAVX | ((cpu_info7[1] & 0x00000020) ? kCpuHasAVX2 : 0) |
                #ndif
                ((cpu_info1[2] & 0x20000000) ? kCpuHasF16C : 0);

    // Detect AVX512bw
    if ((GetXCR0() & 0xe0) == 0xe0) {
      cpu_info |= (cpu_info7[1] & 0x40000000) ? kCpuHasAVX512BW : 0;
      cpu_info |= (cpu_info7[1] & 0x80000000) ? kCpuHasAVX512VL : 0;
      cpu_info |= (cpu_info7[2] & 0x00000002) ? kCpuHasAVX512VBMI : 0;
      cpu_info |= (cpu_info7[2] & 0x00000040) ? kCpuHasAVX512VBMI2 : 0;
      cpu_info |= (cpu_info7[2] & 0x00001000) ? kCpuHasAVX512VBITALG : 0;
      cpu_info |= (cpu_info7[2] & 0x00004000) ? kCpuHasAVX512VPOPCNTDQ : 0;
      cpu_info |= (cpu_info7[2] & 0x00000100) ? kCpuHasGFNI : 0;
    }
  }
#endif
#if defined(__mips__) && defined(__linux__)
#if defined(__mips_msa)
  cpu_info = MipsCpuCaps("/proc/cpuinfo", " msa");
#endif
  cpu_info |= kCpuHasMIPS;
#endif
#if defined(__arm__) || defined(__aarch64__)
// gcc -mfpu=neon defines __ARM_NEON__
// __ARM_NEON__ generates code that requires Neon.  NaCL also requires Neon.
// For Linux, /proc/cpuinfo can be tested but without that assume Neon.
#if defined(__ARM_NEON__) || defined(__native_client__) || !defined(__linux__)
  cpu_info = kCpuHasNEON;
// For aarch64(arm64), /proc/cpuinfo's feature is not complete, e.g. no neon
// flag in it.
// So for aarch64, neon enabling is hard coded here.
#endif
#if defined(__aarch64__)
  cpu_info = kCpuHasNEON;
#else
  // Linux arm parse text file for neon detect.
  cpu_info = ArmCpuCaps("/proc/cpuinfo");
#endif
  cpu_info |= kCpuHasARM;
#endif  // __arm__
  cpu_info |= kCpuInitialized;
  return cpu_info;
}

// Note that use of this function is not thread safe.
LIBYUV_API
int MaskCpuFlags(int enable_flags) {
  int cpu_info = GetCpuFlags() & enable_flags;
  SetCpuFlags(cpu_info);
  return cpu_info;
}

LIBYUV_API
int InitCpuFlags(void) {
  return MaskCpuFlags(-1);
}

#ifdef __cplusplus
}  // extern "C"
}  // namespace libyuv
#endif

Messung V0.5 in Prozent
C=97 H=92 G=94

¤ Dauer der Verarbeitung: 0.4 Sekunden  ¤

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