[clang] [CIR] Add support for accessing members of base classes (PR #143195)

[Erich Keane via cfe-commits]

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@@ -1677,6 +1678,34 @@ bool CIRGenModule::verifyModule() const {
   return mlir::verify(theModule).succeeded();
 }
 
+// TODO(cir): this can be shared with LLVM codegen.
+CharUnits CIRGenModule::computeNonVirtualBaseClassOffset(
+    const CXXRecordDecl *derivedClass, CastExpr::path_const_iterator start,
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erichkeane wrote:

Could/should this take a range instead of iterators?

https://github.com/llvm/llvm-project/pull/143195