[PATCH] D132220: [Assignment Tracking][1/*] Add initial docs for Assignment Tracking

[Orlando Cazalet-Hyams via Phabricator via llvm-commits]

Orlando created this revision.
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The Assignment Tracking debug-info feature is outlined in this RFC <https://discourse.llvm.org/t/rfc-assignment-tracking-a-better-way-of-specifying-variable-locations-in-ir/62367>. This first series of patches adds documentation, the changes necessary to start emitting and using the new metadata, and updates clang with an option to enable the feature. Working with the new metadata in the middle and back end will come later. There are still a few rough edges but I'm putting these patches up now hoping to get feedback on the design and implementation from the upstream community.

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Add a brief document outlining the intent and design.


https://reviews.llvm.org/D132220

Files:
  llvm/docs/AssignmentTracking.md
  llvm/docs/SourceLevelDebugging.rst

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