[cfe-dev] -fcatch-undefined-behavior testing

Mike Stump mrs at apple.com
Wed Dec 16 14:58:35 PST 2009

On Dec 16, 2009, at 11:36 AM, Török Edwin wrote:
> Ok. As a short term solution could it generate an int3 though instead of an illegal instruction?

Which llvm intrinsic is that?

> Yeah the branch for the constant case would be fine, however it would mean a penalty for the non-constant shift case.

As I said, for an optimizing compiler, it could omit the penalty, if it cared.

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