Intel® High Level Synthesis Compiler Pro Edition: User Guide

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ID 683456
Date 10/04/2021
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Document Table of Contents
Document Table of Contents x
1. Intel® High Level Synthesis Compiler Pro Edition User Guide 2. Overview of the Intel® High Level Synthesis (HLS) Compiler Pro Edition 3. Creating a High-Level Synthesis Component and Testbench 4. Verifying the Functionality of Your Design 5. Optimizing and Refining Your Component 6. Verifying Your IP with Simulation 7. Synthesize your Component IP with Intel® Quartus® Prime Pro Edition 8. Integrating your IP into a System A. Reviewing the High-Level Design Reports (report.html) B. Intel® HLS Compiler Pro Edition Restrictions C. Intel® HLS Compiler Pro Edition User Guide Archives D. Document Revision History for Intel® HLS Compiler Pro Edition User Guide
2. Overview of the Intel® High Level Synthesis (HLS) Compiler Pro Edition x
2.1. High Level Synthesis Design Flow 2.2. The Project Directory
3. Creating a High-Level Synthesis Component and Testbench x
3.1. Intel® HLS Compiler Pro Edition Compiler-Defined Preprocessor Macros
5. Optimizing and Refining Your Component x
5.1. The High-Level Design Reports
6. Verifying Your IP with Simulation x
6.1. Generation of the Verification Testbench Executable 6.2. Debugging during Verification 6.3. High-Throughput Simulation (Asynchronous Component Calls) Using Enqueue Function Calls
6.3. High-Throughput Simulation (Asynchronous Component Calls) Using Enqueue Function Calls x
6.3.1. Execution Model 6.3.2. Comparison of Explicit and Enqueued Function Calls
8. Integrating your IP into a System x
8.1. Adding the HLS Compiler-Generated IP into an Intel® Quartus® Prime Pro Edition Project 8.2. Adding the HLS Compiler-Generated IP into a Platform Designer System
A. Reviewing the High-Level Design Reports (report.html) x
A.1. Reviewing the Summary Report A.2. Reviewing Component Architecture A.3. Reviewing Factors That Affect Throughput A.4. Reviewing Component Area Usage A.5. Accessing HLD FPGA Reports in JSON Format
A.2. Reviewing Component Architecture x
A.2.1. System Viewer A.2.2. Function Memory Viewer A.2.3. Schedule Viewer (Beta)
A.2.1. System Viewer x
A.2.1.1. Reviewing System Information A.2.1.2. Reviewing Function Information A.2.1.3. Reviewing Block Information A.2.1.4. Reviewing Cluster Information
A.2.1.2. Reviewing Function Information x
A.2.1.2.1. Reviewing Component Interfaces A.2.1.2.2. Reviewing Loops and Blocks in Your Component or Task
A.3. Reviewing Factors That Affect Throughput x
A.3.1. Loop Analysis Report A.3.2. Loops Viewer (Alpha) A.3.3. Verification Statistics Report
1. Intel® High Level Synthesis Compiler Pro Edition User Guide
2. Overview of the Intel® High Level Synthesis (HLS) Compiler Pro Edition
3. Creating a High-Level Synthesis Component and Testbench
4. Verifying the Functionality of Your Design
5. Optimizing and Refining Your Component
6. Verifying Your IP with Simulation
7. Synthesize your Component IP with Intel® Quartus® Prime Pro Edition
8. Integrating your IP into a System
A. Reviewing the High-Level Design Reports (report.html)
B. Intel® HLS Compiler Pro Edition Restrictions
C. Intel® HLS Compiler Pro Edition User Guide Archives
D. Document Revision History for Intel® HLS Compiler Pro Edition User Guide

3. Creating a High-Level Synthesis Component and Testbench

The Intel® HLS Compiler Pro Edition converts individual functions into RTL code. The components are part of a C++ application that acts as a testbench for your component functions, and you can test your components by calling them from your main() function and verifying that the output is correct.

The compiler supports C++17 and can synthesize some C++ constructs, which might be easier for you to use to create cleaner code. For more information about the supported C++ subset and its restrictions, see "Supported C and C++ Subset for Component Synthesis" in Intel® High Level Synthesis Compiler Pro Edition Reference Manual.

The Intel® HLS Compiler Pro Edition synthesizes all the code in the function or functions that you label as components, and any code that these components call, to an RTL representation.

You can identify a function in your C++ application that you want to synthesize into RTL by inserting the component keyword in the source code before the top-level C++ function to be synthesized.

Important:

Components are synthesized into RTL for all functions labeled with the component keyword and for all components listed in the --component <component_list> option of the i++ command. Avoid combining these methods because you might unexpectedly synthesize unwanted components.

If you do not want components synthesized into RTL for a function, ensure that you do not have the component attribute specified in the function and ensure that the function is not specified in the --component <component_list> option of the i++ command.

You can see which components were synthesized into RTL in the summary page of the High-Level Design Reports ( <name>.prj/reports/report.html). For more information about the High-Level Design Reports, see The High-Level Design Reports.

The HLS compiler creates an executable to run on the CPU. The compiler then sends any calls to functions that you declared as components to simulation of the synthesized IP core, and the simulation results are returned.

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