jasonmolenda wrote:

Ah, so the problem here is that we're missing the eh_frame instructions for 
_sigtramp on arm64 with macOS 14.  `signal_generating_add` is a frameless 
function (a great stress test in this instance), and _sigtramp is called with 
enough of a faked-up stack that a stack walk will find the last frame that set 
up a stack frame before faulting, main in this case.  But we skip 
`signal_generating_add`.  We're going to need to skip this test on macOS for 
now, and I'll dig in to where the eh_frame instructions went and see about 
getting them re-added, but it may take a while to get that into builds and on 
to the bots.

https://github.com/llvm/llvm-project/pull/91321
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