================
@@ -2171,8 +2171,53 @@ mlir::Attribute
CIRGenModule::getAddrOfRTTIDescriptor(mlir::Location loc,
if (!shouldEmitRTTI(forEh))
return builder.getConstNullPtrAttr(builder.getUInt8PtrTy());
- errorNYI(loc, "getAddrOfRTTIDescriptor");
- return mlir::Attribute();
+ if (forEh && ty->isObjCObjectPointerType() &&
+ langOpts.ObjCRuntime.isGNUFamily()) {
+ errorNYI(loc, "getAddrOfRTTIDescriptor: Objc PtrType & Objc RT GUN");
+ return {};
+ }
+
+ return getCXXABI().getAddrOfRTTIDescriptor(loc, ty);
+}
+
+/// TODO(cir): once we have cir.module, add this as a convenience method there.
+///
+/// Look up the specified global in the module symbol table.
+/// 1. If it does not exist, add a declaration of the global and return it.
+/// 2. Else, the global exists but has the wrong type: return the function
+/// with a constantexpr cast to the right type.
+/// 3. Finally, if the existing global is the correct declaration, return the
+/// existing global.
+cir::GlobalOp CIRGenModule::getOrInsertGlobal(
+ mlir::Location loc, StringRef name, mlir::Type ty,
+ llvm::function_ref<cir::GlobalOp()> createGlobalCallback) {
+ // See if we have a definition for the specified global already.
+ auto gv = dyn_cast_or_null<cir::GlobalOp>(getGlobalValue(name));
+ if (!gv) {
+ gv = createGlobalCallback();
+ }
+ assert(gv && "The CreateGlobalCallback is expected to create a global");
+
+ // If the variable exists but has the wrong type, return a bitcast to the
+ // right type.
+ auto gvTy = gv.getSymType();
+ assert(!cir::MissingFeatures::addressSpace());
+ auto pTy = builder.getPointerTo(ty);
----------------
andykaylor wrote:
```suggestion
cir::PointerType pTy = builder.getPointerTo(ty);
```
https://github.com/llvm/llvm-project/pull/160002
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