================
@@ -0,0 +1,51 @@
+#ifndef LLVM_CLANG_CIR_DIALECT_IR_CIRATTRVISITOR_H
+#define LLVM_CLANG_CIR_DIALECT_IR_CIRATTRVISITOR_H
+
+#include "clang/CIR/Dialect/IR/CIRAttrs.h"
+
+namespace cir {
+
+template <typename ImplClass, typename RetTy> class CirAttrVisitor {
+public:
+ // FIXME: Create a TableGen list to automatically handle new attributes
+ template <typename... Args>
+ RetTy visit(mlir::Attribute attr, Args &&...args) {
+ if (const auto intAttr = mlir::dyn_cast<cir::IntAttr>(attr))
+ return static_cast<ImplClass *>(this)->visitCirIntAttr(
+ intAttr, std::forward<Args>(args)...);
+ if (const auto fltAttr = mlir::dyn_cast<cir::FPAttr>(attr))
+ return static_cast<ImplClass *>(this)->visitCirFPAttr(
+ fltAttr, std::forward<Args>(args)...);
+ if (const auto ptrAttr = mlir::dyn_cast<cir::ConstPtrAttr>(attr))
+ return static_cast<ImplClass *>(this)->visitCirConstPtrAttr(
+ ptrAttr, std::forward<Args>(args)...);
+ llvm_unreachable("unhandled attribute type");
+ }
+
+ // If the implementation chooses not to implement a certain visit
+ // method, fall back to the parent.
+ template <typename... Args>
+ RetTy visitCirIntAttr(cir::IntAttr attr, Args &&...args) {
+ return static_cast<ImplClass *>(this)->visitCirAttr(
----------------
erichkeane wrote:
These will cause a stack overflow, as they end up calling themselves.
https://github.com/llvm/llvm-project/pull/125619
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