def BLOCK : I<(outs), (ins bb_op:$dst), [], "block \t$dst">;
def LOOP : I<(outs), (ins bb_op:$dst), [], "loop \t$dst">;
+// No-op to indicate to the AsmPrinter that a loop ends here, so a
+// basic block label is needed even if it wouldn't otherwise appear so.
+let isTerminator = 1, hasCtrlDep = 1 in
+def LOOP_END : I<(outs), (ins), []>;
+
multiclass RETURN<WebAssemblyRegClass vt> {
def RETURN_#vt : I<(outs), (ins vt:$val), [(WebAssemblyreturn vt:$val)],
"return \t$val">;