[P0] Verify the clang++ version used in the test

[tancheng]

Github action probably has a different clang version from my local, leading to different compilation behavior so tests are passed local but not on Github action.

This is from my local:

root@a354e4c22f79:/workspace/dataflow/test/neura/for_loop# clang++ -v
Ubuntu clang version 14.0.0-1ubuntu1.1
Target: aarch64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/aarch64-linux-gnu/11
Selected GCC installation: /usr/bin/../lib/gcc/aarch64-linux-gnu/11
Candidate multilib: .;@m64
Selected multilib: .;@m64

We can either update local or Github action. @yuqisun plz help check the Github action clang version.

[yuqisun]

Hi @tancheng ,

Looks it costs more than 1 hour to install LLVM from source code, can we do this with pre-compiled pkg, same as Mapper but version change to 14?

Any special config needed here?

Thanks,

[tancheng]

Mapper

Plz help try, we need the path to the LLVM's library/header files to compile/build this project:

dataflow/CMakeLists.txt

Lines 29 to 31 in ff914bc

	include_directories(${LLVM_INCLUDE_DIRS})
	include_directories(${MLIR_INCLUDE_DIRS})
	link_directories(${LLVM_LIBRARY_DIRS})

And now we are leveraging a specific commit of the LLVM:

dataflow/README.md

Line 10 in ff914bc

- Check out to commit `cd70802` (a stable version randomly picked, will sync to the latest version).

I don't mind change the dependency though. Plz try a latest stable LLVM-dev, and we can port our project for that version. I think there shouldn't too many changes needed on our side.