[llvm] [VPlan] Introduce VPlanConstantFolder (PR #125365)

[Nikita Popov via llvm-commits]

nikic wrote:

> @nikic I'm not sure how the ConstantExpr creation ties into your effort to remove constant-expressions. Could you kindly have a look?

Please only use APIs defined in https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/Analysis/ConstantFolding.h.

I'd consider only extracting the IR values and delegating the actual folding to https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/Analysis/TargetFolder.h.


https://github.com/llvm/llvm-project/pull/125365