Ejemplos de config_dscr en C++ (Cpp)

Ejemplo n.º 1

Archivo: vm_version_ppc.cpp Proyecto: netroby/jdk9-dev

void VM_Version::initialize() {

  // Test which instructions are supported and measure cache line size.
  determine_features();

  // If PowerArchitecturePPC64 hasn't been specified explicitly determine from features.
  if (FLAG_IS_DEFAULT(PowerArchitecturePPC64)) {
    if (VM_Version::has_lqarx()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 8);
    } else if (VM_Version::has_popcntw()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 7);
    } else if (VM_Version::has_cmpb()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 6);
    } else if (VM_Version::has_popcntb()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 5);
    } else {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 0);
    }
  }

  bool PowerArchitecturePPC64_ok = false;
  switch (PowerArchitecturePPC64) {
    case 8: if (!VM_Version::has_lqarx()  ) break;
    case 7: if (!VM_Version::has_popcntw()) break;
    case 6: if (!VM_Version::has_cmpb()   ) break;
    case 5: if (!VM_Version::has_popcntb()) break;
    case 0: PowerArchitecturePPC64_ok = true; break;
    default: break;
  }
  guarantee(PowerArchitecturePPC64_ok, "PowerArchitecturePPC64 cannot be set to "
            UINTX_FORMAT " on this machine", PowerArchitecturePPC64);

  // Power 8: Configure Data Stream Control Register.
  if (has_mfdscr()) {
    config_dscr();
  }

  if (!UseSIGTRAP) {
    MSG(TrapBasedICMissChecks);
    MSG(TrapBasedNotEntrantChecks);
    MSG(TrapBasedNullChecks);
    FLAG_SET_ERGO(bool, TrapBasedNotEntrantChecks, false);
    FLAG_SET_ERGO(bool, TrapBasedNullChecks,       false);
    FLAG_SET_ERGO(bool, TrapBasedICMissChecks,     false);
  }

Ejemplo n.º 2

Archivo: vm_version_ppc.cpp Proyecto: benbenolson/hotspot_9_mc

void VM_Version::initialize() {

  // Test which instructions are supported and measure cache line size.
  determine_features();

  // If PowerArchitecturePPC64 hasn't been specified explicitly determine from features.
  if (FLAG_IS_DEFAULT(PowerArchitecturePPC64)) {
    if (VM_Version::has_lqarx()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 8);
    } else if (VM_Version::has_popcntw()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 7);
    } else if (VM_Version::has_cmpb()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 6);
    } else if (VM_Version::has_popcntb()) {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 5);
    } else {
      FLAG_SET_ERGO(uintx, PowerArchitecturePPC64, 0);
    }
  }
  guarantee(PowerArchitecturePPC64 == 0 || PowerArchitecturePPC64 == 5 ||
            PowerArchitecturePPC64 == 6 || PowerArchitecturePPC64 == 7 ||
            PowerArchitecturePPC64 == 8,
            "PowerArchitecturePPC64 should be 0, 5, 6, 7, or 8");

  // Power 8: Configure Data Stream Control Register.
  if (PowerArchitecturePPC64 >= 8) {
    config_dscr();
  }

  if (!UseSIGTRAP) {
    MSG(TrapBasedICMissChecks);
    MSG(TrapBasedNotEntrantChecks);
    MSG(TrapBasedNullChecks);
    FLAG_SET_ERGO(bool, TrapBasedNotEntrantChecks, false);
    FLAG_SET_ERGO(bool, TrapBasedNullChecks,       false);
    FLAG_SET_ERGO(bool, TrapBasedICMissChecks,     false);
  }