if ir.ShouldCheckPtr(ir.CurFunc, 1) {
		fnname := "unsafeslicecheckptr"
		fn := typecheck.LookupRuntime(fnname)
		init.Append(mkcall1(fn, nil, init, reflectdata.UnsafeSliceElemRType(base.Pos, n), unsafePtr, typecheck.Conv(len, lenType)))
	} else {
		// Otherwise, open code unsafe.Slice to prevent runtime call overhead.
		// Keep this code in sync with runtime.unsafeslice{,64}