[clang] [Clang] Emit type metadata on vtables when IRPGO instrumentation option is on. (PR #70841)

[Teresa Johnson via cfe-commits]

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@@ -1312,7 +1312,7 @@ llvm::GlobalObject::VCallVisibility 
CodeGenModule::GetVCallVisibilityLevel(
 void CodeGenModule::EmitVTableTypeMetadata(const CXXRecordDecl *RD,
                                            llvm::GlobalVariable *VTable,
                                            const VTableLayout &VTLayout) {
-  if (!getCodeGenOpts().LTOUnit)
+  if (!getCodeGenOpts().LTOUnit && !getCodeGenOpts().hasProfileIRInstr())
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teresajohnson wrote:

Add a comment here and in the other file noting why it is added for IR 
instrumentation.

https://github.com/llvm/llvm-project/pull/70841
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