Apple Math/Matrix (?) Extensions

By: @never_released (never_released.delete@this.whatever.none), September 7, 2019 5:38 am
Room: Moderated Discussions
Hello,

In the Apple Lightning CPU that Apple is releasing in a few days, there's a quite odd SIMD/DSP extension which is nowhere near standard.

The list of instructions for the extension:

AMXFMA32
AMXFMS32
AMXFMA64
AMXFMS64
AMXFMA16
AMXMAC16
AMXFMS16
AMXLDZI
AMXSTZI
AMXVECFP
AMXMATFP
AMXCLR
AMXSET
AMXVECINT
AMXMATINT
AMXGENLUT
AMXLDX
AMXEXTRX
AMXSTX
AMXLDY
AMXEXTRY
AMXSTY
AMXLDZ
AMXSTZ


Would this fragmentation in the AArch64 world cause issues? This means that there are 3 separate SIMD extensions now, one of which is Apple-only.

Thanks,
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Apple Math/Matrix (?) Extensions@never_released2019/09/07 05:38 AM
  Apple Math/Matrix (?) ExtensionsAdrian2019/09/07 06:24 AM
  Apple Math/Matrix (?) Extensionsanon2019/09/07 11:01 AM
    Apple Math/Matrix (?) ExtensionsMaynard Handley2019/09/07 04:30 PM
      Apple Math/Matrix (?) ExtensionsMark Roulo2019/09/07 05:14 PM
        Apple Math/Matrix (?) ExtensionsMaynard Handley2019/09/07 05:34 PM
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            Apple Math/Matrix (?) Extensions@never_released2019/09/08 09:40 AM
              Apple Math/Matrix (?) ExtensionsMaynard Handley2019/09/08 10:51 AM
        Apple Math/Matrix (?) ExtensionsDoug S2019/09/07 11:33 PM
          Apple Math/Matrix (?) ExtensionsMichael S2019/09/08 01:24 AM
      Congratulations, you just described AndroidAnon2019/09/08 12:29 PM
        Congratulations, you just described AndroidMaynard Handley2019/09/08 12:53 PM
          .NET twenty years agoJames2019/09/08 04:06 PM
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        Zero need to have anything vector-len-spacific then the compiler vectorizes a loopHeikki Kultala2019/09/08 02:24 AM
          Zero need to have anything vector-len-spacific then the compiler vectorizes a loopMichael S2019/09/08 03:26 AM
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  Apple Math/Matrix (?) Co-processorHans de Vries2019/09/08 12:07 PM
    Apple Math/Matrix (?) Co-processor@never_released2019/09/08 12:19 PM
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      Apple Math/Matrix (?) Co-processor@never_released2019/09/08 01:44 PM
    Apple Math/Matrix (?) Co-processorGabriele Svelto2019/09/09 12:23 AM
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