[tbb-bugs] #32053 [Applications/Tor Browser]: macOS bundles for Tor Browser 9.0a8 are not reproducible

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#32053: macOS bundles for Tor Browser 9.0a8 are not reproducible
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Immediate                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Critical                             |     Resolution:
 Keywords:  TorBrowserTeam201911, tbb-9.0-must,  |  Actual Points:
  tbb-9.0-issues, tbb-regression,                |
  tbb-9.0.1-can, GeorgKoppen201911               |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by alexcrichton):

 Thanks for the files! Also wow those are huge.

 I've managed to reproduce this and it indeed looks like an LLVM issue!
 (yay?) I ran `opt -O3 style.no-opt.bc -o foo.bc && md5sum foo.bc` and I've
 gotten two different checksums after running a few times. I also just
 checked out the most recent LLVM trunk and I can see the same issue there.

 I don't think there's anything else needed from rustc here, with these
 bitcode files it should be enough to just run these through LLVM's `opt`
 tool to find a reduction that is smaller than 90MB to report :). That
 being said I suspect that an LLVM bug could go ahead and get opened for
 this and LLVM folks might be able to help with the reduction here.

 It's good to point out the cross-compile aspect, although I suspect that
 likely just happens to tickle the right portion of LLVM, and it's actually
 a bug for all platforms. We'll se though!

 Do you want me to file the LLVM bug, or would you like to do so?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32053#comment:22>
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