[llvm-branch-commits] [BOLT] Propagate DataAggregator parse errors (PR #200476)

[Amir Ayupov via llvm-branch-commits]

aaupov wrote:

> > I've updated perf file handling and pre-aggregated-perf.test to produce a warning for a missing secondary file (used to be a hard error before). It will still produce an error for missing first/primary file to preserve current behavior.
> 
> Great, thanks Amir. Yeap, that makes sense.

I've updated the test case to check the warning for malformed input case. Per Rafael's comment, we shouldn't allow missing files – this will still trigger an error.

https://github.com/llvm/llvm-project/pull/200476