Altera High Level Synthesis Compiler Overview Features Resources The High Level Synthesis (HLS) Compiler is discontinued. Migrate your existing designs to use HLS IP Gen. Getting Started The HLS Compiler is included in Quartus® Prime Pro Edition. License is required for Quartus® Prime Pro Edition, for licensing information, go to FPGA Licensing Support Center. See more HLS Compiler download and installation information. See the Getting Started Guide Resources Download