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A comment on Apple Silicon M1 Emulating x86 Is Still Faster Than Every Other Mac. Parent comment

Re:Apple Silicon M1 Emulating x86 Is Still Faster Than Every... by saagarjha on Sunday November 15, 2020 @08:14PM (#25106836)
Xcode will emit those if you ask for it, and macOS ships some binaries that use those instructions. However, Rosetta doesn't do AVX.
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Re:Apple Silicon M1 Emulating x86 Is Still Faster Than Every... by klelatti on Sunday November 15, 2020 @08:15PM (#25106846)
Interesting. How does Rosetta deal with apps with AVX then?
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Re:Apple Silicon M1 Emulating x86 Is Still Faster Than Every... by wmf on Sunday November 15, 2020 @08:24PM (#25106916)
Such apps will use CPUID to detect that AVX is not implemented and they won't use any AVX instructions.
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Re:Apple Silicon M1 Emulating x86 Is Still Faster Than Every... by klelatti on Sunday November 15, 2020 @09:15PM (#25107215)
Of course. So Rosetta will simply follow the non AVX path.
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