[llvm] r362012 - IR: add optional type to 'byval' function parameters

David Blaikie via llvm-commits llvm-commits at lists.llvm.org
Wed May 29 13:39:28 PDT 2019

On Wed, May 29, 2019 at 1:34 PM Tim Northover <tnorthover at apple.com> wrote:

> Hi David,
> On 29 May 2019, at 13:31, David Blaikie <dblaikie at gmail.com> wrote:
> > Sorry about this, but Google-internal build testing is tripping over
> this change when it comes to bootstrapping compiler-rt (with some
> "Attribute 'byval' type does not match parameter!"). Did you happen to test
> a bootstrap?
> I’m investigating now. I believe the issue is that llvm-link (and hence
> LTO) doesn’t merge types within byval yet. I expect to have a fix in about
> an hour.

Ah, awesome :)

> > Reckon it's worth reverting while I investigate on my side? (or if you
> think the chances are good it's only a Google internal issue, that's fair &
> I can just try to figure out what's off with our internal build system)
> I’m happy to revert while I work on it if that’s too slow. Just send word
> or do it yourself, whichever is most convenient for you.

If you wouldn't mind reverting, that'd be great - just so CI
infrastructure's got a better chance of catching other regressions in the

- Dave
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