Mike McQuaid 1a41f29343
os/mac/hardware: clarify Rosetta 2 situation with a comment.
Expand on #10153 to provide an in-code comment (in case someone goes to
change this in future).
2020-12-28 09:09:08 +00:00

24 lines
654 B
Ruby

# typed: strict
# frozen_string_literal: true
module Hardware
extend T::Sig
sig { params(version: T.nilable(Version)).returns(Symbol) }
def self.oldest_cpu(version = MacOS.version)
if CPU.arch == :arm64
:arm_vortex_tempest
# TODO: this cannot be re-enabled until either Rosetta 2 supports AVX
# instructions in bottles or Homebrew refuses to run under Rosetta 2 (when
# ARM support is sufficiently complete):
# https://github.com/Homebrew/homebrew-core/issues/67713
#
# elsif version >= :big_sur
# :ivybridge
elsif version >= :mojave
:nehalem
else
generic_oldest_cpu
end
end
end