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34 lines
1.7 KiB
34 lines
1.7 KiB
# Copyright 1999-2019 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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# Whenever the flag name does not correspond to /proc/cpuinfo flags,
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# please put the cpuinfo flag in square brackets. If more than one flag
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# is specified, any of them will enable the respective USE flag.
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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 - Enable support for Intel's AES instruction set (AES-NI)
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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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avx512dq - Use AVX-512 double- and quad-word instructions
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avx512f - Adds support for AVX-512 Foundation instructions
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avx512vl - Use AVX-512 vector-length instructions
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f16c - Adds support for F16C instruction set for converting between half-precision and single-precision floats
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fma3 - Use the Fused Multiply Add 3 instruction set ([fma] in cpuinfo)
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fma4 - Use the Fused Multiply Add 4 instruction set
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mmx - Use the MMX instruction set
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mmxext - Use the Extended MMX instruction set (a subset of SSE) ([mmxext] or [sse] in cpuinfo)
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padlock - Use VIA padlock instructions ([phe] in cpuinfo)
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pclmul - Use Carry-less Multiplication instructions ([pclmulqdq] in cpuinfo)
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popcnt - Enable popcnt instruction support ([abm] or [popcnt] in cpuinfo)
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rdrand - Use the RDRAND instruction for generating random numbers
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sha - Use the SHA-NI instruction set
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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, NOT ssse3)
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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 (NOT sse3/pni)
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xop - Enable the XOP instruction set
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