messy

flake.nix

@@ -158,7 +158,9 @@
           cargo-insta
           clippy
           rustfmt
+          lldb_14
         ];
+        RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
       };
       devShells.x86_64-linux.msys2 = pkgs.mkShell {
         name = "nac3-dev-shell-msys2";

nac3artiq/src/lib.rs

@@ -1,5 +1,6 @@
 use std::collections::{HashMap, HashSet};
 use std::fs;
+use std::io::Write;
 use std::process::Command;
 use std::rc::Rc;
 use std::sync::Arc;
@@ -763,34 +764,54 @@ impl Nac3 {
         let membuffer = membuffers.clone();
 
         let f = Arc::new(WithCall::new(Box::new(move |module| {
+            // println!("\n\n--------------\n{}\n--------------\n", module.print_to_string().to_string());
             let buffer = module.write_bitcode_to_memory();
             let buffer = buffer.as_slice().into();
             membuffer.lock().push(buffer);
         })));
         let size_t = if self.isa == Isa::Host { 64 } else { 32 };
-        let thread_names: Vec<String> = (0..4).map(|_| "main".to_string()).collect();
+        print!("input number of thread: ");
+        std::io::stdout().flush().unwrap();
+        let mut buffer = String::with_capacity(2);
+        // std::io::stdin().read_line(&mut buffer)?;
+        // println!("{} as input", buffer);
+        let num_thread = buffer.trim().parse::<i32>().unwrap_or_else(|_| {/* println!("using default (4 thread)");  */4});
+        let thread_names: Vec<String> = (0..num_thread).map(|_| "main".to_string()).collect();
+        // println!("number of threads: {}", thread_names.len());
+        // let thread_names: Vec<String> = (0..4).map(|_| "main".to_string()).collect();
         let threads: Vec<_> = thread_names
             .iter()
             .map(|s| Box::new(ArtiqCodeGenerator::new(s.to_string(), size_t, self.time_fns)))
             .collect();
-
+        println!("------0:");
-        let membuffer = membuffers.clone();
+        // let membuffer = membuffers.clone();
         py.allow_threads(|| {
             let (registry, handles) = WorkerRegistry::create_workers(threads, top_level.clone(), f);
             registry.add_task(task);
             registry.wait_tasks_complete(handles);
+            println!("------1:");
 
-            let mut generator = ArtiqCodeGenerator::new("attributes_writeback".to_string(), size_t, self.time_fns);
+            // let mut generator = ArtiqCodeGenerator::new("attributes_writeback".to_string(), size_t, self.time_fns);
-            let context = inkwell::context::Context::create();
+            // let context = inkwell::context::Context::create();
-            let module = context.create_module("attributes_writeback");
+            // let module = context.create_module("attributes_writeback");
-            let builder = context.create_builder();
+            // module.add_basic_value_flag(
-            let (_, module, _) = gen_func_impl(&context, &mut generator, &registry, builder, module,
+            //     "Debug Info Version",
-                attributes_writeback_task, |generator, ctx| {
+            //     inkwell::module::FlagBehavior::Warning,
-                    attributes_writeback(ctx, generator, inner_resolver.as_ref(), host_attributes)
+            //     context.i32_type().const_int(3, false),
-                }).unwrap();
+            // );
-            let buffer = module.write_bitcode_to_memory();
+            // module.add_basic_value_flag(
-            let buffer = buffer.as_slice().into();
+            //     "Dwarf Version",
-            membuffer.lock().push(buffer);
+            //     inkwell::module::FlagBehavior::Warning,
+            //     context.i32_type().const_int(4, false),
+            // );
+            // let builder = context.create_builder();
+            // let (_, module, _) = gen_func_impl(&context, &mut generator, &registry, builder, module,
+            //     attributes_writeback_task, |generator, ctx| {
+            //         attributes_writeback(ctx, generator, inner_resolver.as_ref(), host_attributes)
+                // }).unwrap();
+            // let buffer = module.write_bitcode_to_memory();
+            // let buffer = buffer.as_slice().into();
+            // membuffer.lock().push(buffer);
         });
 
         let context = inkwell::context::Context::create();
@@ -798,21 +819,25 @@ impl Nac3 {
         let main = context
             .create_module_from_ir(MemoryBuffer::create_from_memory_range(&buffers[0], "main"))
             .unwrap();
+        // println!(":1: {}", buffers.len());
         for buffer in buffers.iter().skip(1) {
             let other = context
                 .create_module_from_ir(MemoryBuffer::create_from_memory_range(buffer, "main"))
                 .unwrap();
 
+            // println!(":2:");
             main.link_in_module(other)
                 .map_err(|err| CompileError::new_err(err.to_string()))?;
         }
-        let builder = context.create_builder();
+        // let builder = context.create_builder();
-        let modinit_return = main.get_function("__modinit__").unwrap().get_last_basic_block().unwrap().get_terminator().unwrap();
+        // let modinit_return = main.get_function("__modinit__").unwrap().get_last_basic_block().unwrap().get_terminator().unwrap();
-        builder.position_before(&modinit_return);
+        // builder.position_before(&modinit_return);
-        builder.build_call(main.get_function("attributes_writeback").unwrap(), &[], "attributes_writeback");
+        // builder.build_call(main.get_function("attributes_writeback").unwrap(), &[], "attributes_writeback");
 
-        main.link_in_module(load_irrt(&context))
+        // main.link_in_module(load_irrt(&context))
-            .map_err(|err| CompileError::new_err(err.to_string()))?;
+        //     .map_err(|err| CompileError::new_err(err.to_string()))?;
+
+        // println!(":3:");
 
         let mut function_iter = main.get_first_function();
         while let Some(func) = function_iter {
@@ -822,12 +847,14 @@ impl Nac3 {
             function_iter = func.get_next_function();
         }
 
-        let builder = PassManagerBuilder::create();
+        // let builder = PassManagerBuilder::create();
-        builder.set_optimization_level(OptimizationLevel::Aggressive);
+        // builder.set_optimization_level(OptimizationLevel::Aggressive);
-        let passes = PassManager::create(());
+        // let passes = PassManager::create(());
-        builder.set_inliner_with_threshold(255);
+        // builder.set_inliner_with_threshold(255);
-        builder.populate_module_pass_manager(&passes);
+        // builder.populate_module_pass_manager(&passes);
-        passes.run_on(&main);
+        // passes.run_on(&main);
+
+        // println!("\n\n==========={}\n=============", main.print_to_string().to_string());
 
         let (triple, features) = match isa {
             Isa::Host => (

nac3core/src/codegen/expr.rs

@@ -165,6 +165,7 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
     ) -> BasicTypeEnum<'ctx> {
         get_llvm_type(
             self.ctx,
+            &self.module,
             generator,
             &mut self.unifier,
             self.top_level,
@@ -460,7 +461,8 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
         let i1_true = i1.const_all_ones();
         let expect_fun = self.module.get_function("llvm.expect.i1").unwrap_or_else(|| {
             self.module.add_function(
-                "llvm.expect",
+                // FIXME:
+                "llvm.expect.i1",
                 i1.fn_type(&[i1.into(), i1.into()], false),
                 None,
             )
@@ -693,6 +695,7 @@ pub fn gen_call<'ctx, 'a, G: CodeGenerator>(
         if let Some(obj) = &obj {
             args.insert(0, FuncArg { name: "self".into(), ty: obj.0, default_value: None });
         }
+        // println!("\n2=======getting types for func `{}`=======", symbol);
         let ret_type = if ctx.unifier.unioned(fun.0.ret, ctx.primitives.none) {
             None
         } else {
@@ -715,6 +718,7 @@ pub fn gen_call<'ctx, 'a, G: CodeGenerator>(
             Some(ret_type) if !has_sret => ret_type.fn_type(&params, false),
             _ => ctx.ctx.void_type().fn_type(&params, false)
         };
+        // println!("2=======got types for func `{}`: {}=======\n", symbol, fun_ty.print_to_string().to_string());
         let fun_val = ctx.module.add_function(&symbol, fun_ty, None);
         let offset = if has_sret {
             fun_val.add_attribute(AttributeLoc::Param(0),

nac3core/src/codegen/mod.rs

@@ -203,9 +203,13 @@ impl WorkerRegistry {
     }
 
     fn worker_thread<G: CodeGenerator>(&self, generator: &mut G, f: Arc<WithCall>) {
+        // println!("thread start! 1");
         let context = Context::create();
+        // println!("thread start! 2");
         let mut builder = context.create_builder();
-        let module = context.create_module(generator.get_name());
+        // println!("thread start! 3");
+        let mut module = context.create_module(generator.get_name());
+        // println!("thread start! 4");
 
         module.add_basic_value_flag(
             "Debug Info Version",
@@ -218,23 +222,46 @@ impl WorkerRegistry {
             context.i32_type().const_int(4, false),
         );
 
-        let pass_builder = PassManagerBuilder::create();
-        pass_builder.set_optimization_level(OptimizationLevel::Default);
-        let passes = PassManager::create(&module);
-        pass_builder.populate_function_pass_manager(&passes);
         
         let mut errors = HashSet::new();
+        // while let Some(task) = self.receiver.recv().unwrap() {
+        //     println!("creating tmp");
+        //     let tmp_module = context.create_module("tmp");
+        //     println!("creating tmp done {}", tmp_module.print_to_string().to_string());
+        //     let n = task.symbol_name.clone();
+        //     println!("{} start0:", n);
+        //     let res = gen_func(&context, generator, self, builder, tmp_module, task);
+        //     match res {
+        //         Ok(result) => {
+        //             builder = result.0;
+        //             passes.run_on(&result.2);
+        //             result.1.verify().unwrap();
+        //             module.link_in_module(result.1).unwrap();
+        //         }
+        //         Err((old_builder, e)) => {
+        //             builder = old_builder;
+        //             errors.insert(e);
+        //         }
+        //     }
+        //     println!("{} done0:", n);
+        //     *self.task_count.lock() -= 1;
+        //     self.wait_condvar.notify_all();
+        // }
+        
         while let Some(task) = self.receiver.recv().unwrap() {
-            let tmp_module = context.create_module("tmp");
+            match gen_func(&context, generator, self, builder, module, task) {
-            match gen_func(&context, generator, self, builder, tmp_module, task) {
                 Ok(result) => {
                     builder = result.0;
-                    passes.run_on(&result.2);
+                    // passes.run_on(&result.2);
-                    module.link_in_module(result.1).unwrap();
+                    // module.link_in_module(result.1).unwrap();
+                    module = result.1;
                 }
                 Err((old_builder, e)) => {
-                    builder = old_builder;
+                    // builder = old_builder;
+                    // create a new module to continue to just collect other errors
+                    // module = context.create_module(generator.get_name());
                     errors.insert(e);
+                    panic!("Codegen error: {}", errors.into_iter().sorted().join("\n----------\n"));
                 }
             }
             *self.task_count.lock() -= 1;
@@ -246,10 +273,20 @@ impl WorkerRegistry {
 
         let result = module.verify();
         if let Err(err) = result {
-            println!("{}", module.print_to_string().to_str().unwrap());
+            println!("\n\n!!!!!!!!!!!!!!!!!!error!!!!!!!!!!!!!!!!!!!!!");
-            println!("{}", err);
+            println!("{}", module.print_to_string().to_string());
+            println!("{}", err.to_string());
+            println!("!!!!!!!!!!!!!!!!!!error!!!!!!!!!!!!!!!!!!!!!\n\n");
             panic!()
         }
+
+        println!("aaaa");
+        let pass_builder = PassManagerBuilder::create();
+        pass_builder.set_optimization_level(OptimizationLevel::Default);
+        let passes = PassManager::create(&module);
+        pass_builder.populate_function_pass_manager(&passes);
+        println!("ddddd");
+
         f.run(&module);
         let mut lock = self.task_count.lock();
         *lock += 1;
@@ -271,6 +308,7 @@ pub struct CodeGenTask {
 
 fn get_llvm_type<'ctx>(
     ctx: &'ctx Context,
+    module: &Module<'ctx>,
     generator: &mut dyn CodeGenerator,
     unifier: &mut Unifier,
     top_level: &TopLevelContext,
@@ -282,6 +320,7 @@ fn get_llvm_type<'ctx>(
     // we assume the type cache should already contain primitive types,
     // and they should be passed by value instead of passing as pointer.
     type_cache.get(&unifier.get_representative(ty)).cloned().unwrap_or_else(|| {
+        // println!("getting new: {}", unifier.stringify(ty));
         let ty_enum = unifier.get_ty(ty);
         let result = match &*ty_enum {
             TObj { obj_id, fields, .. } => {
@@ -295,6 +334,7 @@ fn get_llvm_type<'ctx>(
                         ) if *obj_id == *opt_id => {
                             return get_llvm_type(
                                 ctx,
+                                module,
                                 generator,
                                 unifier,
                                 top_level,
@@ -314,6 +354,28 @@ fn get_llvm_type<'ctx>(
                 let ty = if let TopLevelDef::Class { name, fields: fields_list, .. } =
                     &*definition.read()
                 {
+                    // let struct_type = {
+                    //     let struct_type = ctx.opaque_struct_type(&name.to_string());
+                    //     type_cache.insert(unifier.get_representative(ty), struct_type.ptr_type(AddressSpace::Generic).into());
+                    //     let fields = fields_list
+                    //         .iter()
+                    //         .map(|f| {
+                    //             get_llvm_type(
+                    //                 ctx,
+                    //                 module,
+                    //                 generator,
+                    //                 unifier,
+                    //                 top_level,
+                    //                 type_cache,
+                    //                 primitives,
+                    //                 fields[&f.0].0,
+                    //             )
+                    //         })
+                    //         .collect_vec();
+                    //     struct_type.set_body(&fields, false);
+                    //     struct_type
+                    // };
+                    let struct_type = module.get_struct_type(&name.to_string()).unwrap_or_else(|| {
                         let struct_type = ctx.opaque_struct_type(&name.to_string());
                         type_cache.insert(unifier.get_representative(ty), struct_type.ptr_type(AddressSpace::Generic).into());
                         let fields = fields_list
@@ -321,6 +383,7 @@ fn get_llvm_type<'ctx>(
                             .map(|f| {
                                 get_llvm_type(
                                     ctx,
+                                    module,
                                     generator,
                                     unifier,
                                     top_level,
@@ -331,7 +394,11 @@ fn get_llvm_type<'ctx>(
                             })
                             .collect_vec();
                         struct_type.set_body(&fields, false);
-                    struct_type.ptr_type(AddressSpace::Generic).into()
+                        struct_type
+                    });
+                    let res = struct_type.ptr_type(AddressSpace::Generic).into();
+                    // println!("got: {:?}", res);
+                    res
                 } else {
                     unreachable!()
                 };
@@ -341,14 +408,14 @@ fn get_llvm_type<'ctx>(
                 // a struct with fields in the order present in the tuple
                 let fields = ty
                     .iter()
-                    .map(|ty| get_llvm_type(ctx, generator, unifier, top_level, type_cache, primitives, *ty))
+                    .map(|ty| get_llvm_type(ctx, module, generator, unifier, top_level, type_cache, primitives, *ty))
                     .collect_vec();
                 ctx.struct_type(&fields, false).into()
             }
             TList { ty } => {
                 // a struct with an integer and a pointer to an array
                 let element_type =
-                    get_llvm_type(ctx, generator, unifier, top_level, type_cache, primitives, *ty);
+                    get_llvm_type(ctx, module, generator, unifier, top_level, type_cache, primitives, *ty);
                 let fields = [
                     element_type.ptr_type(AddressSpace::Generic).into(),
                     generator.get_size_type(ctx).into(),
@@ -475,10 +542,11 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
     } else {
         unreachable!()
     };
+    // println!("\n=======getting types for func `{}`=======", task.symbol_name);
     let ret_type = if unifier.unioned(ret, primitives.none) {
         None
     } else {
-        Some(get_llvm_type(context, generator, &mut unifier, top_level_ctx.as_ref(), &mut type_cache, &primitives, ret))
+        Some(get_llvm_type(context, &module, generator, &mut unifier, top_level_ctx.as_ref(), &mut type_cache, &primitives, ret))
     };
 
     let has_sret = ret_type.map_or(false, |ty| need_sret(context, ty));
@@ -487,6 +555,7 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
         .map(|arg| {
             get_llvm_type(
                 context,
+                &module,
                 generator,
                 &mut unifier,
                 top_level_ctx.as_ref(),
@@ -497,7 +566,6 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
             .into()
         })
         .collect_vec();
-
     if has_sret {
         params.insert(0, ret_type.unwrap().ptr_type(AddressSpace::Generic).into());
     }
@@ -506,7 +574,7 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
         Some(ret_type) if !has_sret => ret_type.fn_type(&params, false),
         _ => context.void_type().fn_type(&params, false)
     };
-
+    // println!("=======got types for func `{}`: {:?}=======\n", task.symbol_name, fn_type);
     let symbol = &task.symbol_name;
     let fn_val =
         module.get_function(symbol).unwrap_or_else(|| module.add_function(symbol, fn_type, None));
@@ -535,6 +603,7 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
         let alloca = builder.build_alloca(
             get_llvm_type(
                 context,
+                &module,
                 generator,
                 &mut unifier,
                 top_level_ctx.as_ref(),
@@ -678,11 +747,15 @@ pub fn gen_func<'ctx, G: CodeGenerator>(
     module: Module<'ctx>,
     task: CodeGenTask,
 ) -> Result<(Builder<'ctx>, Module<'ctx>, FunctionValue<'ctx>), (Builder<'ctx>, String)> {
+    let n = task.symbol_name.clone();
+    println!("{} start:", n);
     let body = task.body.clone();
-    gen_func_impl(context, generator, registry, builder, module, task, |generator, ctx| {
+    let res = gen_func_impl(context, generator, registry, builder, module, task, |generator, ctx| {
         for stmt in body.iter() {
             generator.gen_stmt(ctx, stmt)?;
         }
         Ok(())
-    })
+    });
+    println!("{} end:", n);
+    res
 }

nac3standalone/demo/run_demo.sh

@@ -7,8 +7,8 @@ if [ -z "$1" ]; then
     exit 1
 fi
 
-if [ -e ../../target/release/nac3standalone ]; then
+if [ -e ../../target/debug/nac3standalone ]; then
-    nac3standalone=../../target/release/nac3standalone
+    nac3standalone=../../target/debug/nac3standalone
 else
     # used by Nix builds
     nac3standalone=../../target/x86_64-unknown-linux-gnu/release/nac3standalone

nac3standalone/src/main.rs

@@ -2,7 +2,7 @@ use inkwell::{
     memory_buffer::MemoryBuffer,
     passes::{PassManager, PassManagerBuilder},
     targets::*,
-    OptimizationLevel,
+    OptimizationLevel, module::Module, context::Context, AddressSpace,
 };
 use parking_lot::{Mutex, RwLock};
 use std::{borrow::Borrow, collections::HashMap, env, fs, path::Path, sync::Arc};
@@ -156,7 +156,7 @@ fn handle_assignment_pattern(
 
 fn main() {
     let file_name = env::args().nth(1).unwrap();
-    let threads: u32 = env::args().nth(2).map(|s| str::parse(&s).unwrap()).unwrap_or(1);
+    let threads: u32 = env::args().nth(2).map(|s| str::parse(&s).unwrap()).unwrap_or(2);
 
     Target::initialize_all(&InitializationConfig::default());
 
@@ -313,4 +313,210 @@ fn main() {
     target_machine
         .write_to_file(&main, FileType::Object, Path::new("module.o"))
         .expect("couldn't write module to file");
+    
+
+    // ===================================
+    // let ctxx = inkwell::context::Context::create();
+    // let ctxx2 = inkwell::context::Context::create();
+    // let ctxx3 = inkwell::context::Context::create();
+
+    // // let builder = PassManagerBuilder::create();
+    // // builder.set_optimization_level(OptimizationLevel::Aggressive);
+    // // let passes = PassManager::create(());
+    // // builder.set_inliner_with_threshold(255);
+    // // builder.populate_module_pass_manager(&passes);
+
+    // let mmm = test2(&ctxx, &ctxx, &ctxx3);
+    // // passes.run_on(&mmm);
+    // Target::initialize_all(&InitializationConfig::default());
+    // let triple = TargetMachine::get_default_triple();
+    // let target = Target::from_triple(&triple).expect("couldn't create target from target triple");
+    // let target_machine = target
+    //     .create_target_machine(
+    //         &triple,
+    //         "",
+    //         "",
+    //         OptimizationLevel::Default,
+    //         RelocMode::Default,
+    //         CodeModel::Default,
+    //     )
+    //     .expect("couldn't create target machine");
+    // target_machine
+    //     .write_to_file(&mmm, FileType::Object, Path::new("module.o"))
+    //     .expect("couldn't write module to file");
+}
+
+fn test<'ctx>(ctx: &'ctx Context, ctx2: &'ctx Context, ctx3: &'ctx Context) -> Module<'ctx> {
+    let module = ctx.create_module("test");
+    let module2 = ctx2.create_module("test2");
+    let builder = ctx.create_builder();
+    let builder2 = ctx2.create_builder();
+    
+    let int32 = ctx.i32_type();
+    let int8 = ctx.i8_type();
+    let int322 = ctx2.i32_type();
+    let int82 = ctx2.i8_type();
+    
+    let opaque = ctx.opaque_struct_type("TestType");
+    let opaque = ctx.opaque_struct_type("TestType");
+    opaque.set_body(&[int32.into(), opaque.ptr_type(AddressSpace::Generic).into()], false);
+    let opaque = opaque.ptr_type(AddressSpace::Generic);
+    
+    // let opaque2 = module.get_struct_type("TestType").unwrap();
+    let opaque2 = ctx2.opaque_struct_type("TestType");
+    // let opaque2 = ctx2.opaque_struct_type("TestType");
+    opaque2.set_body(&[int322.into(), opaque2.ptr_type(AddressSpace::Generic).into()], false);
+    let opaque2 = opaque2.ptr_type(AddressSpace::Generic);
+
+
+    let func2 = module2.add_function("f", ctx2.void_type().fn_type(&[opaque2.into()], false), None);
+    let func2_bb = ctx2.append_basic_block(func2, "init");
+    builder2.position_at_end(func2_bb);
+    builder2.build_return(None);
+
+    let func = module.add_function("run", ctx.void_type().fn_type(&[], false), None);
+    let fun2_mod1 = module.add_function("f", ctx.void_type().fn_type(&[opaque.into()], false), None);    
+    let func1_bb = ctx.append_basic_block(func, "init");
+    builder.position_at_end(func1_bb);
+    let opaque1_ptr = builder.build_alloca(opaque.get_element_type().into_struct_type(), "alloc1");
+    let opaque2_ptr = builder.build_alloca(opaque.get_element_type().into_struct_type(), "alloc2");
+    builder.build_store(
+        unsafe { builder.build_gep(opaque1_ptr, &[int32.const_zero(), int32.const_zero()], "gep") },
+        int32.const_int(123, false)
+    );
+    builder.build_store(
+        unsafe { builder.build_gep(opaque2_ptr, &[int32.const_zero(), int32.const_zero()], "gep") },
+        int32.const_int(23, false)
+    );
+    builder.build_store(
+        unsafe { builder.build_gep(opaque1_ptr, &[int32.const_zero(), int32.const_int(1, false)], "gep") },
+        opaque2_ptr
+    );
+    builder.build_store(
+        unsafe { builder.build_gep(opaque2_ptr, &[int32.const_zero(), int32.const_int(1, false)], "gep") },
+        opaque1_ptr
+    );
+    // let arr = builder.build_array_alloca(opaque, int32.const_int(2, false), "arr");
+    // builder.build_store(
+    //     unsafe { builder.build_gep(arr, &[int32.const_zero()], "zero")},
+    //     opaque1_ptr
+    // );
+    let arr = module.add_global(
+        opaque.array_type(2),
+        None,
+        "arr_const",
+    );
+    arr.set_initializer(&opaque.const_array(&[opaque1_ptr, opaque2_ptr]));
+    let arr = arr.as_pointer_value();
+    let arg = builder.build_load(
+        unsafe { builder.build_gep(arr, &[int32.const_zero(), int32.const_zero()], "zero")},
+        "load"
+    );
+    builder.build_call(fun2_mod1, &[arg.into()], "call");
+    builder.build_return(None);
+    
+    // builder.build_call(func2, args, name)
+    
+    println!("before: \n========= module1: \n{}\n=========module2: \n{}=======\n\n", module.print_to_string().to_string(), module2.print_to_string().to_string());
+    module.verify().unwrap();
+    module2.verify().unwrap();
+    // module.link_in_module(module2).unwrap();
+    let mut mem: Vec<Vec<u8>> = Default::default();
+    let bitcode1 = module.write_bitcode_to_memory();
+    let bitcode1 = bitcode1.as_slice();
+    mem.push(bitcode1.into());
+    let bitcode2 = module2.write_bitcode_to_memory();
+    let bitcode2 = bitcode2.as_slice();
+    mem.push(bitcode2.into());
+
+    let mod1 = ctx3.create_module_from_ir(MemoryBuffer::create_from_memory_range(&mem[0], "mod1")).unwrap();
+    let mod2 = ctx3.create_module_from_ir(MemoryBuffer::create_from_memory_range(&mem[1], "mod2")).unwrap();
+    mod1.verify().unwrap();
+    mod2.verify().unwrap();
+    mod1.link_in_module(mod2).unwrap();
+    let module = mod1;
+    println!("after");
+
+    println!("\n\n====finish===\n{}\n=====finish=====\n\n\n", module.print_to_string().to_string());
+
+
+    println!("before2");
+    match module.verify() {
+        Ok(_) => (),
+        Err(s) => {
+            println!("after2");
+            println!("\n\n=======\n{}\n==========\n{}\n\n", module.print_to_string().to_string(), s.to_string());
+            println!("after3");
+            panic!();
+        }
+    };
+    println!("\n=====done===========");
+    module
+}
+
+fn test2<'ctx>(ctx: &'ctx Context, ctx2: &'ctx Context, ctx3: &'ctx Context) -> Module<'ctx> {
+    let module = ctx.create_module("test");
+    let module2 = ctx2.create_module("test2");
+    let builder = ctx.create_builder();
+    let builder2 = ctx2.create_builder();
+    
+    let int32 = ctx.i32_type();
+    let int8 = ctx.i8_type();
+    let int322 = ctx2.i32_type();
+    let int82 = ctx2.i8_type();
+    
+    let opaque = ctx.opaque_struct_type("TestType");
+    opaque.set_body(&[int32.into(), int8.into()], false);
+    let opaque = opaque.ptr_type(AddressSpace::Generic);
+    
+    let opaque2 = module2.get_struct_type("TestType").unwrap();
+    // let opaque2 = ctx2.opaque_struct_type("TestType");
+    // let opaque2 = ctx2.opaque_struct_type("TestType");
+    opaque2.set_body(&[int322.into(), int82.into()], false);
+    let opaque2 = opaque2.ptr_type(AddressSpace::Generic);
+
+
+    let func2 = module2.add_function("f", ctx2.void_type().fn_type(&[opaque2.into()], false), None);
+    let func2_bb = ctx2.append_basic_block(func2, "init");
+    builder2.position_at_end(func2_bb);
+    builder2.build_return(None);
+
+    let func = module.add_function("run", ctx.void_type().fn_type(&[], false), None);
+    // let fun2_mod1 = module.add_function("f", ctx.void_type().fn_type(&[opaque2.into()], false), None);    
+    let func1_bb = ctx.append_basic_block(func, "init");
+    builder.position_at_end(func1_bb);
+    let opaque1_ptr = builder.build_alloca(opaque.get_element_type().into_struct_type(), "alloc1");
+    builder.build_store(
+        unsafe { builder.build_gep(opaque1_ptr, &[int32.const_zero(), int32.const_zero()], "gep") },
+        int32.const_int(123, false)
+    );
+    builder.build_store(
+        unsafe { builder.build_gep(opaque1_ptr, &[int32.const_zero(), int32.const_int(1, false)], "gep") },
+        int8.const_int(12, false),
+    );
+    builder.build_call(func2, &[opaque1_ptr.into()], "call");
+    builder.build_return(None);
+
+    
+    println!("before: \n========= module1: \n{}\n=========module2: \n{}=======\n\n", module.print_to_string().to_string(), module2.print_to_string().to_string());
+    module.verify().unwrap();
+    module2.verify().unwrap();
+    module.link_in_module(module2).unwrap();
+    println!("after");
+
+    // println!("\n\n====finish===\n{}\n=====finish=====\n\n\n", module.print_to_string().to_string());
+
+
+    println!("before2");
+    match module.verify() {
+        Ok(_) => (),
+        Err(s) => {
+            println!("after2");
+            println!("\n\n=======\n{}\n==========\n{}\n\n", module.print_to_string().to_string(), s.to_string());
+            println!("after3");
+            panic!();
+        }
+    };
+    println!("\n=====done===========");
+    module
 }