[Bug]: Lambda segfaults in Clang

[FireBurn]

Description

This bug has caused segfaults compiling Android projects using lambdas and affects the whole 18.1 series

I've got a version of the patch that applies cleanly to 18.1.8 https://github.com/FireBurn/PortageStuff/blob/master/patches/sys-devel/clang/0001-Tweak-tryCaptureVariable-for-unevaluated-lambdas-932.patch

Upstream bug

llvm/llvm-project#67260

Commit to cherry-pick

vedantparanjape-amd/llvm-project@251b29d

Affected versions

r27

Canary version

No response

Host OS

Linux

Host OS version

Gentoo

Affected ABIs

arm64-v8a, x86_64

[DanAlbert]

Thanks. We'll check the test case in the PR to see if this is a regression from r26. If not, it'll be fixed in r28 for sure, but it'd probably wait for r27b (we'll see though, we're already respinning for a regression fix, so might be able to pick this up too).

[pirama-arumuga-nainar]

llvm/llvm-project#67260 says this regressed due to an LLVM change in september so it is likely a regression in r27. Will try to cherry-pick the fix.

[DanAlbert]

Ah, thanks. I'd skimmed it but missed that bit.

[appujee]

Picked in: https://android-review.googlesource.com/c/toolchain/llvm_android/+/3148958

[FireBurn]

Thanks

[pirama-arumuga-nainar]

Picked in: https://android-review.googlesource.com/c/toolchain/llvm_android/+/3148958

That's a different cherry-pick. The fix for this bug hasn't been cherry-picked yet.

[FireBurn]

Is there anything I need to do with this?

[pirama-arumuga-nainar]

Picked in: https://android-review.googlesource.com/c/toolchain/llvm_android/+/3148958

That's a different cherry-pick. The fix for this bug hasn't been cherry-picked yet.

Actually @appujee is correct. The same fix is cherry-picked as part of #2023. The fix will be included as part of r27 to be released later this month.

[DanAlbert]

Is there anything I need to do with this?

No, you're just waiting for the release to be ready. Can subscribe to https://groups.google.com/g/android-ndk-announce or the releases on this github project if you want to be notified.

[DanAlbert]

Closing as a duplicate of #2023. I don't think it's strictly a dup, but the same upstream change fixed several related bugs (in any case, the fix has been cherry-picked and will be in r27 Very Soon TM).

[FireBurn]

Thanks that it all fixed