[llvm-dev] How to add custom instrumentation?

Alex Denisov via llvm-dev llvm-dev at lists.llvm.org
Thu Jul 13 00:57:23 PDT 2017

Hi everyone,

I run some functions using ORC JIT, now I need to add custom instrumentation.
I want to add two callbacks to each function: ‘enterFunction' at the beginning and ‘leaveFunction' at the end.
Intuition says that I could ‘just' insert CallInst's to the first and the last basic blocks in the function.

Am I correct? Are there any other/better way to do this? Is there anything special I need to be aware of?

Thank you.
Software Engineer, https://lowlevelbits.org

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