[llvm] [CodeGenPrepare] Reuse free wider zero extensions (PR #228750)

[Craig Topper via llvm-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/228750 at github.com>


topperc wrote:

There's been a recent interest in extends in CodeGenPrepare. I don't know how these wil all fit together and interact

https://github.com/llvm/llvm-project/pull/227117
https://github.com/llvm/llvm-project/pull/223010

https://github.com/llvm/llvm-project/pull/228750