[clang] [llvm] [MemProf] Expand optimization scope to internal linakge function (PR #73236)

[Snehasish Kumar via cfe-commits]

snehasish wrote:

@lifengxiang1025 thanks for flagging this issue. I think it's best to not rely on unique-internal-linkage-name here. Instead we should extend the logic in RawMemProfReader.cpp to include "<filename>;" if the function is internal linkage as expected by IRPGOFuncName.  Can you try this approach?

https://github.com/llvm/llvm-project/blob/c0fe0719df457b0992606b0f2a235719a5bbfd54/llvm/lib/ProfileData/RawMemProfReader.cpp#L509-L510

https://github.com/llvm/llvm-project/pull/73236