[LLVMdev] Parallel Loop Metadata

[Renato Golin]

On 11 February 2013 23:15, Hal Finkel <hfinkel at anl.gov> wrote:

> I agree with this. We should err on the side of safety even at the cost of
> larger IR. Relying on other passes to drop metadata on loop backedges, even
> if those passes are making (seemingly) completely-unrelated changes is
> asking for trouble; and in this case, trouble means miscompiles. Also, the
> changes to support propagating this metadata in existing passes are well
> defined: just grep for all places where TBAA metadata is handled. Some
> refactoring may be in order, but that is not a bad thing.
>

+1

--renato
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