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).
This commit is contained in:
Mike McQuaid 2020-12-28 09:09:08 +00:00
parent bcbf5857da
commit 1a41f29343
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@ -7,6 +7,13 @@ module Hardware
def self.oldest_cpu(version = MacOS.version) def self.oldest_cpu(version = MacOS.version)
if CPU.arch == :arm64 if CPU.arch == :arm64
:arm_vortex_tempest :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 elsif version >= :mojave
:nehalem :nehalem
else else