[llvm] [GlobalISel] Combine [s,z]ext of undef into 0 (PR #117439)

[Jay Foad via llvm-commits]

Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Schütt?= <schuett at gmail.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/117439 at github.com>


jayfoad wrote:

I am in favour. It's pretty much what I suggested here: https://github.com/llvm/llvm-project/pull/115377#discussion_r1834013500

https://github.com/llvm/llvm-project/pull/117439