diff options
Diffstat (limited to 'deps/v8/src/base/cpu.cc')
| -rw-r--r-- | deps/v8/src/base/cpu.cc | 86 |
1 files changed, 56 insertions, 30 deletions
diff --git a/deps/v8/src/base/cpu.cc b/deps/v8/src/base/cpu.cc index 5bc8b13a97..56e1c4633c 100644 --- a/deps/v8/src/base/cpu.cc +++ b/deps/v8/src/base/cpu.cc @@ -291,32 +291,36 @@ static bool HasListItem(const char* list, const char* item) { #endif // V8_HOST_ARCH_IA32 || V8_HOST_ARCH_X64 -CPU::CPU() : stepping_(0), - model_(0), - ext_model_(0), - family_(0), - ext_family_(0), - type_(0), - implementer_(0), - architecture_(0), - part_(0), - has_fpu_(false), - has_cmov_(false), - has_sahf_(false), - has_mmx_(false), - has_sse_(false), - has_sse2_(false), - has_sse3_(false), - has_ssse3_(false), - has_sse41_(false), - has_sse42_(false), - has_idiva_(false), - has_neon_(false), - has_thumb2_(false), - has_vfp_(false), - has_vfp3_(false), - has_vfp3_d32_(false), - is_fp64_mode_(false) { +CPU::CPU() + : stepping_(0), + model_(0), + ext_model_(0), + family_(0), + ext_family_(0), + type_(0), + implementer_(0), + architecture_(0), + variant_(-1), + part_(0), + has_fpu_(false), + has_cmov_(false), + has_sahf_(false), + has_mmx_(false), + has_sse_(false), + has_sse2_(false), + has_sse3_(false), + has_ssse3_(false), + has_sse41_(false), + has_sse42_(false), + has_avx_(false), + has_fma3_(false), + has_idiva_(false), + has_neon_(false), + has_thumb2_(false), + has_vfp_(false), + has_vfp3_(false), + has_vfp3_d32_(false), + is_fp64_mode_(false) { memcpy(vendor_, "Unknown", 8); #if V8_OS_NACL // Portable host shouldn't do feature detection. @@ -356,6 +360,8 @@ CPU::CPU() : stepping_(0), has_ssse3_ = (cpu_info[2] & 0x00000200) != 0; has_sse41_ = (cpu_info[2] & 0x00080000) != 0; has_sse42_ = (cpu_info[2] & 0x00100000) != 0; + has_avx_ = (cpu_info[2] & 0x10000000) != 0; + if (has_avx_) has_fma3_ = (cpu_info[2] & 0x00001000) != 0; } #if V8_HOST_ARCH_IA32 @@ -383,7 +389,7 @@ CPU::CPU() : stepping_(0), // Extract implementor from the "CPU implementer" field. char* implementer = cpu_info.ExtractField("CPU implementer"); if (implementer != NULL) { - char* end ; + char* end; implementer_ = strtol(implementer, &end, 0); if (end == implementer) { implementer_ = 0; @@ -391,10 +397,20 @@ CPU::CPU() : stepping_(0), delete[] implementer; } + char* variant = cpu_info.ExtractField("CPU variant"); + if (variant != NULL) { + char* end; + variant_ = strtol(variant, &end, 0); + if (end == variant) { + variant_ = -1; + } + delete[] variant; + } + // Extract part number from the "CPU part" field. char* part = cpu_info.ExtractField("CPU part"); if (part != NULL) { - char* end ; + char* end; part_ = strtol(part, &end, 0); if (end == part) { part_ = 0; @@ -535,7 +551,7 @@ CPU::CPU() : stepping_(0), // Extract implementor from the "CPU implementer" field. char* implementer = cpu_info.ExtractField("CPU implementer"); if (implementer != NULL) { - char* end ; + char* end; implementer_ = strtol(implementer, &end, 0); if (end == implementer) { implementer_ = 0; @@ -543,10 +559,20 @@ CPU::CPU() : stepping_(0), delete[] implementer; } + char* variant = cpu_info.ExtractField("CPU variant"); + if (variant != NULL) { + char* end; + variant_ = strtol(variant, &end, 0); + if (end == variant) { + variant_ = -1; + } + delete[] variant; + } + // Extract part number from the "CPU part" field. char* part = cpu_info.ExtractField("CPU part"); if (part != NULL) { - char* end ; + char* end; part_ = strtol(part, &end, 0); if (end == part) { part_ = 0; |