[llvm-commits] [PATCH] a pass that strips tbaa metadata

[Jan Voung]

Hi all,

Attached is a patch that adds a very simple pass to strip TBAA metadata.

(1) It might be useful as another way to test that TBAA metadata is
optional (besides setting --enable-tbaa to false, or not generating it in
the first place).

(2) It might be useful for producing even-more-stripped bitcode files
(beyond the existing "-strip" and "-strip-debug"), if it is known that all
useful optimizations have already been run on the program.  Metadata
attachments are an average of ~7% of the total file size, for some set of
programs we've seen.

Are there important uses of TBAA metadata in the various backends?

Thanks,
- Jan
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