Difference between pages "CPU FLAGS" and "Talk:Intel64-haswell"

(Difference between pages)
(CPU_FLAGS_X86)
 
(Suggestion to add the "LZCNT" flag to CPU_FLAGS_X86)
 
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This page lists processor instruction sets that can be enabled on Funtoo Linux systems using the {{c|CPU_FLAGS_*}} variables.
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Should the CPU_FLAGS suggested on this page include "lzcnt"?
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As listed here [1] lzcnt was adopted in Intel Haswell.
  
==CPU_FLAGS_X86 ==
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Or is there a special reason that LZCNT was not listed on this page?
  
{{TableStart}}
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[1] http://www.funtoo.org/CPU_FLAGS
<tr><th>Flag</th><th>Introduced</th><th>By</th><th>Part of</th><th>Adopted in</th><th>Name</th><th>Links</th></tr>
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<tr><td>{{c|mmx}}</td><td>1997 (Pentium MMX)</td><td>Intel</td><td></td><td></td><td>MMX</td><td>See [[Wikipedia:MMX (instruction set)]] </td></tr>
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<tr><td>{{c|mmxext}}</td><td>1999</td><td>AMD</td><td>{{c|sse}}</td><td>Intel Pentium III (as part of SSE)</td><td>AMD MMX Extensions</td><td>See [[Wikipedia:Extended MMX]]</td></tr>
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<tr><td>{{c|sse}}</td><td>1999 (Pentium III)</td><td>AMD</td><td></td><td>Athlon XP</td><td>Streaming SIMD Extensions (SSE)</td><td>See [[Wikipedia:Streaming SIMD Extensions]]</td></tr>
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<tr><td>{{c|sse2}}</td><td>2001 (Pentium 4)</td><td>Intel</td><td></td><td>AMD Athlon 64/Opteron</td><td>Streaming SIMD Extensions 2 (SSE2)</td><td>See [[Wikipedia:SSE2]]</td></tr>
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<tr><td>{{c|sse3}}</td><td>2004 (Pentium 4 Prescott)</td><td>Intel</td><td></td><td>AMD Athlon 64 (some steppings)</td><td>Streaming SIMD Extensions 3 (SSE3/PNI)</td><td>See [[Wikipedia:SSE3]]</td></tr>
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<tr><td>{{c|ssse3}}</td><td>2006 (Core 2 Woodcrest)</td><td>Intel</td><td></td><td>AMD Bobcat/Bulldozer</td><td>Supplemental Streaming SIMD Extensions 3 (SSSE3)</td><td>See [[Wikipedia:SSSE3]]</td></tr>
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<tr><td>{{c|sse4_1}}</td><td>2007 (Core Penryn)</td><td>Intel</td><td></td><td>AMD Bulldozer</td><td>Supplemental Streaming SIMD Extensions 4.1</td><td>See [[Wikipedia:SSSE4#SSE4.1]]</td></tr>
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<tr><td>{{c|sse4a}}</td><td>late 2007 (Barcelona/Phenom)</td><td>AMD</td><td></td><td>N/A</td><td>Supplemental Streaming SIMD Extensions 4a</td><td>See [[Wikipedia:SSSE4#SSE4a]]</td></tr>
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<tr><td>{{c|sse4_2}}</td><td>late 2008 (Nehalem/Core i7)</td><td>Intel</td><td></td><td>AMD Bulldozer</td><td>Supplemental Streaming SIMD Extensions 4.2</td><td>See [[Wikipedia:SSSE4#SSE4.2]]</td></tr>
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<tr><td>{{c|popcnt}}</td><td>2007</td><td>AMD</td><td></td><td>Intel Nehalem</td><td>POPCNT</td><td>See [[Wikipedia:SSE4#POPCNT_and_LZCNT]]</td></tr>
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<tr><td>{{c|lzcnt}}</td><td>2007</td><td>AMD</td><td></td><td>Intel Haswell</td><td>LZCNT</td><td>See [[Wikipedia:SSE4#POPCNT_and_LZCNT]]</td></tr>
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{{TableEnd}}
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Revision as of 19:24, May 9, 2015

Should the CPU_FLAGS suggested on this page include "lzcnt"? As listed here [1] lzcnt was adopted in Intel Haswell.

Or is there a special reason that LZCNT was not listed on this page?

[1] http://www.funtoo.org/CPU_FLAGS