[PATCH] D126745: [RISCV][Clang] Support policy functions for vmerge, vfmerge and vcompress.

[Zakk Chen via Phabricator via cfe-commits]

khchen added a comment.

In D126745#3678776 <https://reviews.llvm.org/D126745#3678776>, @nlopes wrote:

> While at it, could you switch those UndefValue with PoisonValue if possible?  Thank you!

I'm not sure UndefValue will work because the backend would only check isUndef() to generate correct code...


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