[llvm] [InstCombine] Set !prof metadata on Selects identified by add.ll test (PR #158743)

[Nikita Popov via llvm-commits]

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@@ -252,6 +252,16 @@ void setExplicitlyUnknownBranchWeights(Instruction &I, StringRef PassName) {
                    MDB.createString(PassName)}));
 }
 
+void setExplicitlyUnknownBranchWeightsIfProfiled(Instruction &New,
+                                                 Instruction &Original,
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nikic wrote:

As Original is only used to get the function, should we pass that directly?

https://github.com/llvm/llvm-project/pull/158743