[PATCH] D139296: [msan][CodeGen] Set noundef for C return value

[Vitaly Buka via Phabricator via cfe-commits]

vitalybuka added a comment.

In D139296#3972142 <https://reviews.llvm.org/D139296#3972142>, @kda wrote:

> Is there a risk of this being too strict for standard C?
>
> Should there be a test case for our specific problem?  (C calling C++)

Probably not. It's cross module mismatch. To reproduce we need two module and one of them will do about the same as the current msan-param-retval.c.


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https://reviews.llvm.org/D139296