[llvm] Enable the strip-optnone-attribute binary to take a list of paths

[ChrisCummins]

This extends the strip-optnone-attribute binary to take a list of zero
or more bitcodes to modify, rather than requiring a single argument.

[codecov-commenter]

Codecov Report

Merging #554 (97cb9cb) into development (51e3c0a) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development     #554      +/-   ##
===============================================
- Coverage        87.88%   87.81%   -0.07%     
===============================================
  Files              113      113              
  Lines             6486     6486              
===============================================
- Hits              5700     5696       -4     
- Misses             786      790       +4     

Impacted Files	Coverage Δ
...loop_tool/service/loop_tool_compilation_session.py	88.59% <0.00%> (-0.68%)	⬇️
compiler_gym/envs/compiler_env.py	91.60% <0.00%> (-0.50%)	⬇️
compiler_gym/service/connection.py	76.97% <0.00%> (-0.33%)	⬇️

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[hughleat]

LGTM

Just curious though. Is this somehow related to -Xclang -disable-O0-optnone?

[ChrisCummins]

Just curious though. Is this somehow related to -Xclang -disable-O0-optnone?

Yes. This binary is used to rewrite LLVM bitcodes that have already been prepared. E.g. there's a big dataset of bitcodes that were all compiled with -O0, this binary enables them to be used as gym envs.

Cheers,
Chris