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# Copyright 1999-2015 Gentoo Foundation.
# Distributed under the terms of the GNU General Public License v2
# $Id$
# Whenever the flag name does not correspond to /proc/cpuinfo flags,
# please put the cpuinfo flag in square brackets. If more than one flag
# is specified, any of them will enable the respective USE flag.
3dnow - Use the 3DNow! instruction set
3dnowext - Use the Enhanced 3DNow! instruction set
aes - Enable support for Intel's AES instruction set (AES-NI)
avx - Adds support for Advanced Vector Extensions instructions
avx2 - Adds support for Advanced Vector Extensions 2 instructions
fma3 - Use the Fused Multiply Add 3 instruction set ([fma] in cpuinfo)
fma4 - Use the Fused Multiply Add 4 instruction set
mmx - Use the MMX instruction set
mmxext - Use the Extended MMX instruction set (a subset of SSE) ([mmxext] or [sse] in cpuinfo)
padlock - Use VIA padlock instructions ([phe] in cpuinfo)
popcnt - Enable popcnt instruction support ([abm] or [popcnt] in cpuinfo)
sse - Use the SSE instruction set
sse2 - Use the SSE2 instruction set
sse3 - Use the SSE3 instruction set ([pni] in cpuinfo, NOT ssse3)
sse4_1 - Enable SSE4.1 instruction support
sse4_2 - Enable SSE4.2 instruction support
sse4a - Enable SSE4a instruction support
ssse3 - Use the SSSE3 instruction set (NOT sse3/pni)
xop - Enable the XOP instruction set
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