[VPlan] Fix crash with EVL tail folding intrinsic with no corresponding VP#121542

lukel97 merged 2 commits intollvm:mainllvm/llvm-project:mainfrom

lukel97:loop-vectorize/evl-call-cast-instruction-no-vp-intrinsic-fixlukel97/llvm-project:loop-vectorize/evl-call-cast-instruction-no-vp-intrinsic-fixCopy head branch name to clipboard