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Code Issues Releases Activity

Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  x86: add detection for Bit Manipulation Instruction sets

Conflicts:
	libavutil/x86/cpu.c

See: 0bc3de19ff
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2014-02-23 22:52:42 +01:00
parent d9574069c1 d59fcdaff3
commit bd8d73ea8b
1 changed files with 4 additions and 5 deletions
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5
libavutil/x86/cpu.c
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@ -139,6 +139,7 @@ int ff_get_cpu_flags_x86(void)
} }
#endif /* HAVE_AVX */ #endif /* HAVE_AVX */
#endif /* HAVE_SSE */ #endif /* HAVE_SSE */
}
if (max_std_level >= 7) { if (max_std_level >= 7) {
cpuid(7, eax, ebx, ecx, edx); cpuid(7, eax, ebx, ecx, edx);
#if HAVE_AVX2 #if HAVE_AVX2
@ -146,14 +147,12 @@ int ff_get_cpu_flags_x86(void)
rval |= AV_CPU_FLAG_AVX2; rval |= AV_CPU_FLAG_AVX2;
#endif /* HAVE_AVX2 */ #endif /* HAVE_AVX2 */
/* BMI1/2 don't need OS support */ /* BMI1/2 don't need OS support */
if (ebx&0x00000008) if (ebx & 0x00000008) {
{
rval |= AV_CPU_FLAG_BMI1; rval |= AV_CPU_FLAG_BMI1;
if (ebx & 0x00000100) if (ebx & 0x00000100)
rval |= AV_CPU_FLAG_BMI2; rval |= AV_CPU_FLAG_BMI2;
} }
} }
}
cpuid(0x80000000, max_ext_level, ebx, ecx, edx); cpuid(0x80000000, max_ext_level, ebx, ecx, edx);