[DAG] Fold (setcc ((x | x >> c0 | ...) & mask)) sequences#146054

Pierre-vh merged 3 commits intomainllvm/llvm-project:mainfrom

users/pierre-vh/dag-combine-workitems-intrinsicsllvm/llvm-project:users/pierre-vh/dag-combine-workitems-intrinsicsCopy head branch name to clipboard