[llvm-branch-commits] [llvm] [BOLT][test] Fix callcont-fallthru.s after #129481 (PR #135867)

[Paschalis Mpeis via llvm-branch-commits]

paschalis-mpeis wrote:

That is perfect and the way we should go forward with this – thanks @yota9.

The problem is that the test is flaky: it passes on some systems but fails on others.
Using`XFAIL` would make my AArch64 buildbot happy but it cause failures (`Unexpectedly Passed`) on other AArch64 machines I've tested . 🤷‍♂️

That's why I propose restricting this to X86 for now, as a way to unblock us in the meantime:
- #137831

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https://github.com/llvm/llvm-project/blob/42d76a34b20487a0e24f0b9f57612d4e67305568/bolt/test/X86/callcont-fallthru.s#L3-L5

https://github.com/llvm/llvm-project/pull/135867