[PATCH] D105709: [AMDGPU][GlobalISel] Insert an and with exec before s_cbranch_vccnz if necessary

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

In D105709#2910506 <https://reviews.llvm.org/D105709#2910506>, @mbrkusanin wrote:

> - Covered case with amdgcn_ballot.

No, ballot is a weird thing that returns the full 32/64-bit result of evaluating an expression in all lanes. You should not handle it here. I meant to approve the previous version of the patch.


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