[PATCH] D137905: [GlobalISel] Add new G_INVOKE_REGION_START/END instructions to fix an EH bug

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

I don't know anything about exceptions, but looking at translateInvoke, I'm confused by several things.

Why do you need this new thing, instead of just looking for EH_LABEL? Why is this specially handling inlineasm such that it may turn off the label if the called operand can't throw as some kind of optimization? If it can't throw, wouldn't it optimize to use a regular call in the first place?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D137905/new/

https://reviews.llvm.org/D137905