[mlir][WIP] Set up RTTI for `ValueBoundsConstraintSet`
diff --git a/mlir/include/mlir/Interfaces/ValueBoundsOpInterface.h b/mlir/include/mlir/Interfaces/ValueBoundsOpInterface.h
index 28dadfb..19a2f12 100644
--- a/mlir/include/mlir/Interfaces/ValueBoundsOpInterface.h
+++ b/mlir/include/mlir/Interfaces/ValueBoundsOpInterface.h
@@ -15,6 +15,7 @@
#include "mlir/IR/Value.h"
#include "mlir/Interfaces/DestinationStyleOpInterface.h"
#include "llvm/ADT/SetVector.h"
+#include "llvm/Support/ExtensibleRTTI.h"
#include <queue>
@@ -63,7 +64,8 @@
///
/// Note: Any modification of existing IR invalides the data stored in this
/// class. Adding new operations is allowed.
-class ValueBoundsConstraintSet {
+class ValueBoundsConstraintSet
+ : public llvm::RTTIExtends<ValueBoundsConstraintSet, llvm::RTTIRoot> {
protected:
/// Helper class that builds a bound for a shaped value dimension or
/// index-typed value.
@@ -107,6 +109,8 @@
};
public:
+ static char ID;
+
/// The stop condition when traversing the backward slice of a shaped value/
/// index-type value. The traversal continues until the stop condition
/// evaluates to "true" for a value.
diff --git a/mlir/lib/Interfaces/ValueBoundsOpInterface.cpp b/mlir/lib/Interfaces/ValueBoundsOpInterface.cpp
index 85abc2d..97fab48 100644
--- a/mlir/lib/Interfaces/ValueBoundsOpInterface.cpp
+++ b/mlir/lib/Interfaces/ValueBoundsOpInterface.cpp
@@ -70,6 +70,8 @@
ValueBoundsConstraintSet::ValueBoundsConstraintSet(MLIRContext *ctx)
: builder(ctx) {}
+char ValueBoundsConstraintSet::ID = 0;
+
#ifndef NDEBUG
static void assertValidValueDim(Value value, std::optional<int64_t> dim) {
if (value.getType().isIndex()) {
