return func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {
			s.vars[memVar] = s.newValue2(op, types.TypeMem, args[0], s.mem())
			return nil
		}
	}

	// Make Prefetch intrinsics for supported platforms
	// On the unsupported platforms stub function will be eliminated
	addF("runtime/internal/sys", "Prefetch", makePrefetchFunc(ssa.OpPrefetchCache),
		sys.AMD64, sys.ARM64, sys.PPC64)

	if !cc.t.disableCompression() &&
		req.Header.Get("Accept-Encoding") == "" &&
		req.Header.Get("Range") == "" &&
		!cs.isHead {
		// Request gzip only, not deflate. Deflate is ambiguous and
		// not as universally supported anyway.
		// See: https://zlib.net/zlib_faq.html#faq39
		//
		// Note that we don't request this for HEAD requests,
		// due to a bug in nginx:
		//   http://trac.nginx.org/nginx/ticket/358