diff options
| -rw-r--r-- | doc/examples/cpuid.cpp | 1 | ||||
| -rw-r--r-- | src/utils/cpuid.h | 9 |
2 files changed, 9 insertions, 1 deletions
diff --git a/doc/examples/cpuid.cpp b/doc/examples/cpuid.cpp index 62b565edf..f4d441ba2 100644 --- a/doc/examples/cpuid.cpp +++ b/doc/examples/cpuid.cpp @@ -30,6 +30,7 @@ int main() print_if_feature("SSSE3", CPUID::has_ssse3()); print_if_feature("SSE4.1", CPUID::has_sse41()); print_if_feature("SSE4.2", CPUID::has_sse42()); + print_if_feature("AVX", CPUID::has_avx()); print_if_feature("AES-NI", CPUID::has_aes_intel()); diff --git a/src/utils/cpuid.h b/src/utils/cpuid.h index dbac89455..e0ccee515 100644 --- a/src/utils/cpuid.h +++ b/src/utils/cpuid.h @@ -54,6 +54,12 @@ class BOTAN_DLL CPUID { return ((x86_processor_flags() >> CPUID_SSE42_BIT) & 1); } /** + * Check if the processor supports extended AVX vector instructions + */ + static bool has_avx() + { return ((x86_processor_flags() >> CPUID_AVX_BIT) & 1); } + + /** * Check if the processor supports Intel's AES instructions */ static bool has_aes_intel() @@ -70,7 +76,8 @@ class BOTAN_DLL CPUID CPUID_SSSE3_BIT = 41, CPUID_SSE41_BIT = 51, CPUID_SSE42_BIT = 52, - CPUID_INTEL_AES_BIT = 57 + CPUID_INTEL_AES_BIT = 57, + CPUID_AVX_BIT = 60 }; static u64bit x86_processor_flags(); |