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variadixtoday at 3:54 PM1 replyview on HN

You can probably eliminate the switch bounds check by making the default case execute __builtin_unreachable(). The switch version is safe for non-conforming opcodes where the computed goto version invokes UB.


Replies

fweimertoday at 5:01 PM

Using __builtin_unreachable in this way makes the switch version unsafe, too.