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Update intrinsic support and cpu detection.

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This commit is contained in:
Mounir IDRASSI committed 2016-06-17 15:50:46 +02:00
1 parent 842dce0e1b
commit 6ae982cccf
3 files changed
+87 -19
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src/Crypto/cpu.c
+4 -4
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@@ -12,10 +12,6 @@
#include <setjmp.h>
#endif
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
#include <emmintrin.h>
#endif
#ifdef CRYPTOPP_CPUID_AVAILABLE
#if _MSC_VER >= 1400 && CRYPTOPP_BOOL_X64
@@ -165,6 +161,7 @@ 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;
uint32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
VC_INLINE int IsIntel(const uint32 output[4])
@@ -194,6 +191,9 @@ void DetectX86Features()
g_hasMMX = (cpuid1[3] & (1 << 23)) != 0;
if ((cpuid1[3] & (1 << 26)) != 0)
g_hasSSE2 = TrySSE2();
g_hasAVX = g_hasSSE2 && (cpuid1[2] & (1 << 28));
g_hasSSE42 = g_hasSSE2 && (cpuid1[2] & (1 << 20));
g_hasSSE41 = g_hasSSE2 && (cpuid1[2] & (1 << 19));
g_hasSSSE3 = g_hasSSE2 && (cpuid1[2] & (1<<9));
g_hasAESNI = g_hasSSE2 && (cpuid1[2] & (1<<25));
g_hasCLMUL = g_hasSSE2 && (cpuid1[2] & (1<<1));