[cfe-dev] Adding extra debug information

[via cfe-dev]

Hi cfe-dev,
 
I'm quite new to Clang. When using Clang 5.0 with -g, the generated llvm IR has loop metadata. I am trying to add more information to that metadata node, but am having trouble knowing where to start. Can anyone point me to what files/classes I should be looking at to make such a change?
 
Thank you!
 
Eli Davis
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