================
@@ -2413,6 +2413,73 @@ static void prepareTypeConverter(mlir::LLVMTypeConverter
&converter,
});
}
+static void buildCtorDtorList(
+ mlir::ModuleOp module, StringRef globalXtorName, StringRef llvmXtorName,
+ llvm::function_ref<std::pair<StringRef, int>(mlir::Attribute)> createXtor)
{
+ llvm::SmallVector<std::pair<StringRef, int>> globalXtors;
+ for (const mlir::NamedAttribute namedAttr : module->getAttrs()) {
+ if (namedAttr.getName() == globalXtorName) {
+ for (auto attr : mlir::cast<mlir::ArrayAttr>(namedAttr.getValue()))
+ globalXtors.emplace_back(createXtor(attr));
+ break;
+ }
+ }
+
+ if (globalXtors.empty())
+ return;
+
+ mlir::OpBuilder builder(module.getContext());
+ builder.setInsertionPointToEnd(&module.getBodyRegion().back());
+
+ // Create a global array llvm.global_ctors with element type of
+ // struct { i32, ptr, ptr }
+ auto ctorPFTy = mlir::LLVM::LLVMPointerType::get(builder.getContext());
+ llvm::SmallVector<mlir::Type> ctorStructFields;
+ ctorStructFields.push_back(builder.getI32Type());
+ ctorStructFields.push_back(ctorPFTy);
+ ctorStructFields.push_back(ctorPFTy);
+
+ auto ctorStructTy = mlir::LLVM::LLVMStructType::getLiteral(
+ builder.getContext(), ctorStructFields);
+ auto ctorStructArrayTy =
+ mlir::LLVM::LLVMArrayType::get(ctorStructTy, globalXtors.size());
+
+ mlir::Location loc = module.getLoc();
+ auto newGlobalOp = mlir::LLVM::GlobalOp::create(
+ builder, loc, ctorStructArrayTy, /*constant=*/false,
+ mlir::LLVM::Linkage::Appending, llvmXtorName, mlir::Attribute());
+
+ builder.createBlock(&newGlobalOp.getRegion());
+ builder.setInsertionPointToEnd(newGlobalOp.getInitializerBlock());
+
+ mlir::Value result =
+ builder.create<mlir::LLVM::UndefOp>(loc, ctorStructArrayTy);
----------------
AmrDeveloper wrote:
```suggestion
mlir::LLVM::UndefOp::create(builder, loc, ctorStructArrayTy);
```
https://github.com/llvm/llvm-project/pull/162130
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