[LLVMdev] [RFC] Module Flags Metadata

Devang Patel dpatel at apple.com
Mon Jan 30 09:29:34 PST 2012


On Jan 27, 2012, at 4:36 PM, Jim Grosbach wrote:

> My understanding of metadata was that it can be discarded by optimizations, or any other transformations, without affecting correctness; however, discarded != ignored. That is, the optimization is expected to either update the metadata appropriated for whatever transformations it performed or delete the metadata entirely. Is that incorrect?

If the value that is metadata is holding is deleted or RAUW'ed then metadata will be updated automatically.
-
Devang
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