Use default value in LLVM and enable tests

Author: Smit-create

integration_tests/CMakeLists.txt

@@ -295,7 +295,7 @@ RUN(NAME test_dict_07        LABELS cpython llvm)
 RUN(NAME test_dict_08        LABELS cpython llvm c)
 RUN(NAME test_dict_09        LABELS cpython llvm c)
 RUN(NAME test_dict_10        LABELS cpython llvm) # TODO: Add support of dict with string in C backend
-RUN(NAME test_dict_11        LABELS cpython c) # TODO: Add LLVM support
+RUN(NAME test_dict_11        LABELS cpython llvm c)
 RUN(NAME test_for_loop       LABELS cpython llvm c)
 RUN(NAME modules_01          LABELS cpython llvm c wasm wasm_x86 wasm_x64)
 RUN(NAME modules_02          LABELS cpython llvm c wasm wasm_x86 wasm_x64)

src/libasr/codegen/asr_to_llvm.cpp

@@ -1793,9 +1793,18 @@ class ASRToLLVMVisitor : public ASR::BaseVisitor<ASRToLLVMVisitor>
         this->visit_expr_wrapper(x.m_key, true);
         ptr_loads = ptr_loads_copy;
         llvm::Value *key = tmp;
+        llvm::Type *val_type = get_type_from_ttype_t_util(dict_type->m_value_type);
+        llvm::Value *def_value_ptr = nullptr;
+        if (x.m_default) {
+            def_value_ptr = builder->CreateAlloca(val_type, nullptr);
+            ptr_loads = !LLVM::is_llvm_struct(dict_type->m_value_type);
+            this->visit_expr_wrapper(x.m_default, true);
+            ptr_loads = ptr_loads_copy;
+            builder->CreateStore(tmp, def_value_ptr);
+        }
 
         set_dict_api(dict_type);
-        tmp = llvm_utils->dict_api->read_item(pdict, key, *module, dict_type,
+        tmp = llvm_utils->dict_api->read_item(pdict, key, *module, dict_type, def_value_ptr,
                                   LLVM::is_llvm_struct(dict_type->m_value_type));
     }