llvm-project

cfde685e - [VPlan] Sink VPB2IRBB lookups to VPRecipeBuilder (NFC).

[VPlan] Sink VPB2IRBB lookups to VPRecipeBuilder (NFC). This allows migrating some more code to be based on VPBBs in VPRecipeBuilder, in preparation for https://github.com/llvm/llvm-project/pull/128420.