[llvm] [MemProf] Extend CallSite information to include potential callees. (PR #130441)

[Kazu Hirata via llvm-commits]

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@@ -455,14 +477,37 @@ struct IndexedMemProfRecord {
   static GlobalValue::GUID getGUID(const StringRef FunctionName);
 };
 
+// Holds call site information with frame contents inline.
+struct CallSiteInfo {
+  // The frames in the call stack
+  std::vector<Frame> Frames;
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kazutakahirata wrote:

May I suggest `SmallVector<Frame, 0>` if you don't have to update too many places?

https://github.com/llvm/llvm-project/pull/130441