2. Overview of the Intel® High Level Synthesis (HLS) Compiler Pro Edition
You can use the same testbench to verify your design both when it is compiled to x86-64 instructions or to RTL.
The Intel® HLS Compiler Pro Edition is command-line compatible with g++, and supports most of the g++ compiler flags. See the Intel® High Level Synthesis Compiler Reference Manual for a full list of compiler flags.
The Intel® HLS Compiler Pro Edition recognizes the same file name extensions as g++, namely .c, .C, .cc, .cpp, .CPP, .c++, .cp, and .cxx. The compiler treats all of these file types as C++. The compiler does not explicitly support C, other than as a subset of C++.
- Generated IP
- High-Level Design Reports (report.html)
- Verification testbench files
- Quartus project that you can use to accurately estimate area requirements and fMAX for your design.
To specify the name of the compiler output, include the -o <result> option in your i++ command, where <result> is the name of the executable. This command creates a project directory called <result>.prj.
Running the executable file runs your testbench. When you target the compilation to an x86-64 architecture, the output executable runs your design on the CPU like a regular C++ program. The output executable runs very quickly compared to running a simulation of your component RTL. When you target the compilation to an FPGA architecture, the output executable simulates your component RTL. This simulation can take a long time to run.
High Level Synthesis Design Flow
The Project Directory
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