[llvm-branch-commits] [llvm] [llvm] Extract and propagate indirect call type id (PR #87575)

[Prabhu Rajasekaran via llvm-branch-commits]

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@@ -7922,6 +7923,10 @@ AArch64TargetLowering::LowerCall(CallLoweringInfo &CLI,
                     *DAG.getContext());
   RetCCInfo.AnalyzeCallResult(Ins, RetCC);
 
+  // Set type id for call site info.
+  if (MF.getTarget().Options.EmitCallGraphSection && CB && CB->isIndirectCall())
+    CSInfo = MachineFunction::CallSiteInfo(*CB);
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Prabhuk wrote:

Can you please help me understand the concerns here? If the lib function is called indirectly, there will be no callsite_type metadata set for those calls. Will an additional check to see if there is a "callee_type" metadata before initializing CSInfo address the use case you thinking about?

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