suhorng: PruneEH 並不是沒被改寫,而是根本沒被包含進新的 pipeline 裡面XD。這是他的理由:"historically, the PruneEH pass was run first to deduce nounwind and generally clean up exception handling overhead. It isn't clear this is valuable as the inliner doesn't currently care whether it is inlining an invoke or a call."