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A comment on M1racles: An Apple M1 covert channel vulnerability. Parent comment

Re:M1racles: An Apple M1 covert channel vulnerability by pthariensflame on Wednesday May 26, 2021 @03:38AM (#27287519)
It’s not a standard ARM register; it’s implementation-defined and nobody gave it a meaningful name. It appears to do nothing much.
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Re:M1racles: An Apple M1 covert channel vulnerability by exikyut on Wednesday May 26, 2021 @05:44AM (#27288301)
Then why not unofficially standardize its use in GCC and Clang's register-pooling subsystem?
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Re:M1racles: An Apple M1 covert channel vulnerability by saagarjha on Wednesday May 26, 2021 @07:48AM (#27289260)
Because GCC and Clang don't get to decide what hardware does with the register…
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