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On Mon, Jan 19, 2015 at 4:41 AM, Alexis Ballier <aballier@g.o> wrote: |
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> On Sun, 18 Jan 2015 15:15:22 -0800 |
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> Matt Turner <mattst88@g.o> wrote: |
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> > > mmx - Use the MMX instruction set |
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> > > mmxext - Use the Extended MMX instruction set (intersection of |
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> > > Enhanced 3DNow! and SSE instruction sets) (3dnowext or sse in |
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> > > cpuinfo) padlock - Use VIA padlock instructions popcnt - Enable |
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> > > popcnt instruction support 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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> wikipedia says it is sse4.1 + sse4.2 |
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> |
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Some CPUs don't have 4.2, and some don't have 4a. You'd still need the |
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separate flags, so an extraneous combined flag is a bit silly. |
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