From 15b6c7d3b7e2726b71be3331e881863eb7602826 Mon Sep 17 00:00:00 2001 From: Mounir IDRASSI Date: Thu, 13 Oct 2016 10:11:02 +0200 Subject: Implement detection of new CPU features: AVX2 and BMI2 --- src/Crypto/cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/Crypto/cpu.c') diff --git a/src/Crypto/cpu.c b/src/Crypto/cpu.c index ed1f5933..7a4656d4 100644 --- a/src/Crypto/cpu.c +++ b/src/Crypto/cpu.c @@ -189,7 +189,7 @@ static int TrySSE2() int g_x86DetectionDone = 0; int g_hasISSE = 0, g_hasSSE2 = 0, g_hasSSSE3 = 0, g_hasMMX = 0, g_hasAESNI = 0, g_hasCLMUL = 0, g_isP4 = 0; -int g_hasAVX = 0, g_hasSSE42 = 0, g_hasSSE41 = 0; +int g_hasAVX = 0, g_hasAVX2 = 0, g_hasBMI2 = 0, g_hasSSE42 = 0, g_hasSSE41 = 0; uint32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE; VC_INLINE int IsIntel(const uint32 output[4]) @@ -292,6 +292,8 @@ void DetectX86Features() g_hasMMX = (cpuid1[3] & (1 << 23)) != 0; if ((cpuid1[3] & (1 << 26)) != 0) g_hasSSE2 = TrySSE2(); + g_hasAVX2 = g_hasSSE2 && (cpuid1[1] & (1 << 5)); + g_hasBMI2 = g_hasSSE2 && (cpuid1[1] & (1 << 8)); g_hasAVX = g_hasSSE2 && (cpuid1[2] & (1 << 28)); g_hasSSE42 = g_hasSSE2 && (cpuid1[2] & (1 << 20)); g_hasSSE41 = g_hasSSE2 && (cpuid1[2] & (1 << 19)); -- cgit v1.2.3