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@ -137,14 +137,14 @@ int ff_get_cpu_flags_x86(void) |
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if (!strncmp(vendor.c, "GenuineIntel", 12)) { |
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if (family == 6 && (model == 9 || model == 13 || model == 14)) { |
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/* 6/9 (pentium-m "banias"), 6/13 (pentium-m "dothan"), and 6/14 (core1 "yonah")
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* theoretically support sse2, but it's usually slower than mmx, |
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* so let's just pretend they don't. AV_CPU_FLAG_SSE2 is disabled and |
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* AV_CPU_FLAG_SSE2SLOW is enabled so that SSE2 is not used unless |
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* explicitly enabled by checking AV_CPU_FLAG_SSE2SLOW. The same |
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* situation applies for AV_CPU_FLAG_SSE3 and AV_CPU_FLAG_SSE3SLOW. */ |
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if (rval & AV_CPU_FLAG_SSE2) rval ^= AV_CPU_FLAG_SSE2SLOW|AV_CPU_FLAG_SSE2; |
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if (rval & AV_CPU_FLAG_SSE3) rval ^= AV_CPU_FLAG_SSE3SLOW|AV_CPU_FLAG_SSE3; |
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/* 6/9 (pentium-m "banias"), 6/13 (pentium-m "dothan"), and 6/14 (core1 "yonah")
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* theoretically support sse2, but it's usually slower than mmx, |
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* so let's just pretend they don't. AV_CPU_FLAG_SSE2 is disabled and |
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* AV_CPU_FLAG_SSE2SLOW is enabled so that SSE2 is not used unless |
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* explicitly enabled by checking AV_CPU_FLAG_SSE2SLOW. The same |
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* situation applies for AV_CPU_FLAG_SSE3 and AV_CPU_FLAG_SSE3SLOW. */ |
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if (rval & AV_CPU_FLAG_SSE2) rval ^= AV_CPU_FLAG_SSE2SLOW|AV_CPU_FLAG_SSE2; |
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if (rval & AV_CPU_FLAG_SSE3) rval ^= AV_CPU_FLAG_SSE3SLOW|AV_CPU_FLAG_SSE3; |
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} |
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/* The Atom processor has SSSE3 support, which is useful in many cases,
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* but sometimes the SSSE3 version is slower than the SSE2 equivalent |
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