[llvm] [llvm-objdump] Add support for symbolizing PGOBBAddrMap Info (PR #76386)

[Micah Weston via llvm-commits]

================
@@ -1264,23 +1264,70 @@ static SymbolInfoTy createDummySymbolInfo(const ObjectFile &Obj,
     return SymbolInfoTy(Addr, Name, Type);
 }
 
-static void
-collectBBAddrMapLabels(const std::unordered_map<uint64_t, BBAddrMap> &AddrToBBAddrMap,
-                       uint64_t SectionAddr, uint64_t Start, uint64_t End,
-                       std::unordered_map<uint64_t, std::vector<std::string>> &Labels) {
+static void collectBBAddrMapLabels(
+    const std::unordered_map<uint64_t, BBAddrMap> &AddrToBBAddrMap,
+    const std::unordered_map<uint64_t, PGOAnalysisMap> &AddrToPGOBBAddrMap,
+    uint64_t SectionAddr, uint64_t Start, uint64_t End,
+    std::unordered_map<
+        uint64_t, std::vector<std::pair<std::string, std::string>>> &Labels) {
----------------
red1bluelost wrote:

Please define a 'plain-old-data' `struct` so it is clear what parts of the pair mean. Also helps if in the future we want to add new label parts.

```c++
struct BBAddrMapLabel {
  std::string BlockLabel;
  std::string PGOAnalysis;
}
```

https://github.com/llvm/llvm-project/pull/76386