[llvm] [OpenMPOpt][PGO] Set entry count on merged parallel wrapper (PR #221654)

[Alok Kumar Sharma via llvm-commits]

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alokkrsharma wrote:

Thanks, I've made that change. setMergedWrapperEntryCount() now takes the callback operand index as a parameter rather than relying on a hardcoded CallbackOpNo = 2.

https://github.com/llvm/llvm-project/pull/221654