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LLVM-18-Tutorial

This blog serves as a updated version of LLVM-11-Tutorial, at which more detailed explanation of this project can be found. In this blog, I mainly record the difference between LLVM-11 and LLVM-18, the specific changes are explained within each experiment folder. I am happy to discuss and any suggestion will be welcome ^_^ (jgeab@connect.ust.hk). ~If this blog is useful for you, a STAR will be encouragement to me.

Before Running Experiments

Auxiliary File Settings: To avoid potential warnings from VS Code, it is recommended to set the configurations in the c_cpp_properties.json file as follows::

  • includePath:
    • "${workspaceFolder}/**"
    • "/usr/local/include/"
  • "cStandard": "c17"
  • "cppStandard": "c++17"

CMake Path: The compilation logic can be complex within these folders. Here is an explanation:

  • The pass source codes can be found within the Implements folder.
  • The specific experiments testing each pass can be found in the Tests folder.
  • The compiled libraries can be found in Tests/LLVM_Learner_Libs and please remember to include the corresponding passes in the CMake file.
  • The App folder contains the main pass-debugging benchmarks.
  • The HLS_Data_Lib provides the timing and resource data needed for Light-HLS’s early-stage QoR estimation.