[llvm] [llvm-profgen] Loading binary functions from .symtab when DWARF info is incomplete (PR #163654)

[via llvm-commits]

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@@ -1034,6 +1140,48 @@ void ProfiledBinary::computeInlinedContextSizeForFunc(
   }
 }
 
+void ProfiledBinary::loadSymbolsFromPseudoProbe() {
+  if (!UsePseudoProbes)
+    return;
+
+  const AddressProbesMap &Address2ProbesMap = getAddress2ProbesMap();
+  for (auto &[Addr, Range] : StartAddrToFuncRangeMap) {
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HighW4y2H3ll wrote:

I'm actually leaning towards iterating over all the `Range`s... because I can check `Range.IsFuncEntry` and skip a lot of non-entry function ranges... The computation complexity is likely still the same...? but `BinaryFunction` doesn't contain a full `FuncRange` struct, so checking function entry points won't be that convenient with `ProfiledFunctions`...

https://github.com/llvm/llvm-project/pull/163654