[WebAssembly] Optimizes [zext](and 63|32) for shl, srl and sra with selectShiftMask#170572

badumbatish wants to merge 1 commit intollvm:mainllvm/llvm-project:mainfrom

badumbatish:wasm_masked_shift_refactorbadumbatish/llvm-project:wasm_masked_shift_refactorCopy head branch name to clipboard