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Hi, >> I am also not sure if it is at all possible to design a metadata >> system that allows passes to ignore it. I don't think that is true for >> any metadata we have other than debug info (if you don't consider >> broken debug info). >> >> IMHO the advantage that is still left in using metadata is that it is >> easier to implement gradually,

On Tue, Apr 17, 2012 at 11:29 AM, Rafael Espíndola <rafael.espindola at gmail.com> wrote: >> The point isn't whether it's a good idea to discard FP precision data >> (or vectorization data, or debug data), but rather whether IR >> transformations are allowed to treat a meta-data annotated instruction >> as having the same semantics as an unannotated