[llvm] [AlwaysInline] Avoid unnecessary BFI fetches (PR #117750)

[Florian Hahn via llvm-commits]

================
@@ -133,9 +136,12 @@ struct AlwaysInlinerLegacyPass : public ModulePass {
     auto GetAssumptionCache = [&](Function &F) -> AssumptionCache & {
       return getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
     };
+    auto GetCachedBFI = [&](Function &) -> BlockFrequencyInfo * {
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fhahn wrote:

```suggestion
    auto GetCachedBFI = [](Function &) -> BlockFrequencyInfo * {
```

https://github.com/llvm/llvm-project/pull/117750