[llvm-commits] [pr12979][patch/rfc] Clear nsw/nuw in gvn
Rafael EspĂndola
rafael.espindola at gmail.com
Tue May 29 13:19:50 PDT 2012
> The patch is incomplete since I am not sure what is the best thing to
> do about the metadata.
I have implemented the following
* Keep the most generic tbaa, i.e., the one closest to the root.
* Keep the most generic fpmath, i.e., the one with the smallest value.
* Keep the dbg and prof of the value we are replacing.
* Drop metadata we know nothing about.
Cheers,
Rafael
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