[llvm] [PGO] Don't unconditionally request BBInfo in verifyFuncBFI() (PR #140804)

[Ellis Hoag via llvm-commits]

================
@@ -2086,10 +2086,12 @@ static void verifyFuncBFI(PGOUseFunc &Func, LoopInfo &LI,
 
   unsigned BBNum = 0, BBMisMatchNum = 0, NonZeroBBNum = 0;
   for (auto &BBI : F) {
-    uint64_t CountValue = 0;
-    uint64_t BFICountValue = 0;
+    PGOUseBBInfo *BBInfo = Func.findBBInfo(&BBI);
+    if (!BBInfo)
+      continue;
 
-    CountValue = Func.getBBInfo(&BBI).Count.value_or(CountValue);
+    uint64_t CountValue = Func.getBBInfo(&BBI).Count.value_or(CountValue);
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ellishg wrote:

```suggestion
    uint64_t CountValue = BBInfo->Count.value_or(CountValue);
```

https://github.com/llvm/llvm-project/pull/140804