wbZero = f.fe.Syslook("wbZero")
			wbMove = f.fe.Syslook("wbMove")
			if buildcfg.Experiment.CgoCheck2 {
				cgoCheckPtrWrite = f.fe.Syslook("cgoCheckPtrWrite")
				cgoCheckMemmove = f.fe.Syslook("cgoCheckMemmove")
			}
			const0 = f.ConstInt32(f.Config.Types.UInt32, 0)

			// allocate auxiliary data structures for computing store order
			sset = f.newSparseSet(f.NumValues())
			defer f.retSparseSet(sset)