[PATCH] D25350: [X86] Enable interleaved memory accesses by default

[Simon Pilgrim via llvm-commits]

RKSimon added a comment.

In https://reviews.llvm.org/D25350#569385, @mkuper wrote:

> In https://reviews.llvm.org/D25350#569327, @RKSimon wrote:
>
> > We're seeing some minor but consistent regressions (< 1%) on some internal tests.
>
>
> That's really interesting - that means it's firing. :-)
>
> Can you provide a reproducer? I can see basically three possible sources of regressions:


We're trying to drill down to the codegen diffs - its a large codebase and is putting up a fight.... The regression reduced when we enabled LTO and/or PGO.


https://reviews.llvm.org/D25350