[clang] [llvm] [llvm] Extract and propagate callee_type metadata (PR #87575)

[Prabhu Rajasekaran via cfe-commits]

================
@@ -517,6 +520,32 @@ class LLVM_ABI MachineFunction {
     SmallVector<ArgRegPair, 1> ArgRegPairs;
     /// Callee type ids.
     SmallVector<ConstantInt *, 4> CalleeTypeIds;
+
+    CallSiteInfo() = default;
+
+    /// Extracts the numeric type id from the CallBase's callee_type Metadata,
+    /// and sets CalleeTypeIds. This is used as type id for the indirect call 
in
+    /// the call graph section.
+    CallSiteInfo(const CallBase &CB) {
----------------
Prabhuk wrote:

I started a new PR #151520 to address this. PTAL. 

https://github.com/llvm/llvm-project/pull/87575
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