[llvm] [BOLT][merge-fdata]Fix support for fdata files starting with no_lbr on ARM platform (PR #112328)

[via llvm-commits]

zrxxzz wrote:

Hi @yota9 

I hope this message finds you well. I have submitted a pull request that addresses an issue with the `merge-fdata` tool not supporting `fdata` files starting with `no_lbr` on the ARM platform. The changes include enabling support for `no_lbr` and validating the merging of samples across both LBR and Non-LBR scenarios.

Could you please review my PR when you have a moment? Your feedback would be greatly appreciated.

Thank you for your time and consideration.

Best regards

https://github.com/llvm/llvm-project/pull/112328