[clang] [Clang] Generate the GEP instead of adding AST nodes (PR #73730)

[Nick Desaulniers via cfe-commits]

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@@ -1411,6 +1411,8 @@ class CodeGenFunction : public CodeGenTypeCache {
   /// decls.
   DeclMapTy LocalDeclMap;
 
+  llvm::SmallDenseMap<const Expr *, LValue, 32> ExprLValueMap;
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nickdesaulniers wrote:

Perhaps a comment as to what this map is used for?

https://github.com/llvm/llvm-project/pull/73730