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Merge pull request #2138 from dpoe/master

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correct check for lzcnt cpu capability
This commit is contained in:
Bernhard Miklautz 2014-10-07 10:56:30 +02:00
commit d60bafaff5
1 changed files with 7 additions and 4 deletions
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11
winpr/libwinpr/sysinfo/sysinfo.c
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@ -401,7 +401,7 @@ ULONGLONG GetTickCount64(void)
#define D_BIT_3DN (1<<30)
#define C_BIT_SSE3 (1<<0)
#define C_BIT_PCLMULQDQ (1<<1)
#define C_BIT_LZCNT (1<<5)
#define C81_BIT_LZCNT (1<<5)
#define C_BIT_3DNP (1<<8)
#define C_BIT_3DNP (1<<8)
#define C_BIT_SSSE3 (1<<9)
@ -699,9 +699,12 @@ BOOL IsProcessorFeaturePresentEx(DWORD ProcessorFeature)
switch (ProcessorFeature)
{
case PF_EX_LZCNT:
if (c & C_BIT_LZCNT)
ret = TRUE;
{
unsigned a81, b81, c81, d81;
cpuid(0x80000001, &a81, &b81, &c81, &d81);
if (c81 & C81_BIT_LZCNT)
ret = TRUE;
}
break;
case PF_EX_3DNOW_PREFETCH: