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ARM removed similar & related functions in v8 since it messes up exception handling in a deep pipeline. IIRC Linux stopped using this long ago as the performan
by panpanna 7y ago
ARM removed similar & related functions in v8 since it messes up exception handling in a deep pipeline.
IIRC Linux stopped using this long ago as the performance improvement was not worth the extra code (although Linux is not as heavy on ipc as l4 & co)