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On Sun, Jan 18, 2015 at 12:44 PM, Michał Górny <mgorny@g.o> wrote: |
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> Hello, |
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> |
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> I would like to commit the following flags as cpu_flags_x86_desc. |
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> The list combines global USE flags with some local USE flags I've been |
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> able to find. |
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> |
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> |
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> 3dnow - Use the 3DNow! instruction set |
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> 3dnowext - Use the Enhanced 3DNow! instruction set |
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> aes-ni - Enable support for Intel's AES instruction set (aes in cpuinfo) |
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> avx - Adds support for Advanced Vector Extensions instructions |
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> avx2 - Adds support for Advanced Vector Extensions 2 instructions |
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> fma - Use the Fused Multiply Add instruction set |
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|
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There are fma3 and fma4 instruction sets. We need to determine which |
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one the packages that have this flag are actually using and name the |
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flag appropriately. |
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|
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> mmx - Use the MMX instruction set |
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> mmxext - Use the Extended MMX instruction set (intersection of Enhanced 3DNow! and SSE instruction sets) (3dnowext or sse in cpuinfo) |
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> padlock - Use VIA padlock instructions |
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> popcnt - Enable popcnt instruction support |
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> sse - Use the SSE instruction set |
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> sse2 - Use the SSE2 instruction set |
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> sse3 - Use the SSE3 instruction set (pni in cpuinfo) |
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> sse4 - Enable SSE4 instruction support |
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|
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We shouldn't have an sse4 USE flag. It's either one of the three |
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below, but SSE4 by itself isn't a thing. |
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|
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> sse4_1 - Enable SSE4.1 instruction support |
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> sse4_2 - Enable SSE4.2 instruction support |
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> sse4a - Enable SSE4a instruction support |
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> ssse3 - Use the SSSE3 instruction set |
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> |
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> -- |
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> Best regards, |
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> Michał Górny |
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|
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The rest look good to me. |
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