if buildcfg.GOARM64.LSE {
				emit(s, n, args, op1, typ)
			} else {
				// Target Atomic feature is identified by dynamic detection
				addr := s.entryNewValue1A(ssa.OpAddr, types.Types[types.TBOOL].PtrTo(), ir.Syms.ARM64HasATOMICS, s.sb)
				v := s.load(types.Types[types.TBOOL], addr)
				b := s.endBlock()
				b.Kind = ssa.BlockIf
				b.SetControl(v)
				bTrue := s.f.NewBlock(ssa.BlockPlain)