[llvm] [DebugInfo] Fix incorrect debug attribution for inlined allocas (PR #144345)

[Shivam Kunwar via llvm-commits]

phyBrackets wrote:

Hi @jmorse Thanks for getting back to this, no worries on the delay!

you're right that dropping alloca locations is the more aggressive fix and could surface unexpected behaviors, but I'm up for dealing with those if they come up.

I think starting with this approach makes sense since it's more likely to catch other similar issues beyond just stack-protection. If we hit any weird edge cases or regressions, I'm happy to either fix them or pivot to the more conservative stack-protection  specific fix if needed.

https://github.com/llvm/llvm-project/pull/144345