Displaying 1 result from an estimated 1 matches for "dropunknownmetadata".
2013 Sep 07
2
[LLVMdev] llvm.meta (was Rotated loop identification)
On Mon, Aug 19, 2013 at 10:06 PM, Andrew Trick <atrick at apple.com> wrote:
> Metadata is a better approach because it doesn’t interfere with
> optimizations that are free to ignore it.
>
But in practice, they aren't going to be free to ignore it.
If you have metadata which encodes an invariant (in the most general sense,
lifetime instrinsics currently encode an invariant,