[llvm] [GVN][PGO] Skip GVN if entry BlockFreq is 0 (PR #166336)

[Nikita Popov via llvm-commits]

nikic wrote:

Missing justification for the change. This looks very wrong to me, as partial profiles are common. The optimization for the non-profiled parts should be the same as absence of the profile.

https://github.com/llvm/llvm-project/pull/166336