[llvm-dev] [ThinLTO] Using two different IRMovers for the same composite module? (related to PR28180)

Davide Italiano via llvm-dev llvm-dev at lists.llvm.org
Fri Jul 22 14:44:31 PDT 2016

On Fri, Jul 22, 2016 at 2:34 PM, Taewook Oh via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Yes, I have the repro, though I can’t publish it externally. It would be
> great if you can upstream the patch so I can try it. Thank you for your
> explanation as well!

There's a reproducer attached (obtained via lld --reproduce option).
If that doesn't work, you can checkout mozjs and try to reduce from
It happens while doing an LTO build with lld.
I have a fix for that (Mehdi has one as well, apparently) in my local
tree, but I don't have time to reduce. If you can take care of that,
chances are that an upstream fix will be committed shortly after.


"There are no solved problems; there are only problems that are more
or less solved" -- Henri Poincare

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