LLVMCodeBuilder: Implement list size

Author: adazem009

src/dev/engine/internal/icodebuilder.h

@@ -24,6 +24,7 @@ class ICodeBuilder
         virtual void addVariableValue(Variable *variable) = 0;
         virtual void addListContents(List *list) = 0;
         virtual void addListItem(List *list) = 0;
+        virtual void addListSize(List *list) = 0;
 
         virtual void createAdd() = 0;
         virtual void createSub() = 0;

src/dev/engine/internal/llvm/llvmcodebuilder.cpp

@@ -540,6 +540,13 @@ std::shared_ptr<ExecutableCode> LLVMCodeBuilder::finalize()
                 break;
             }
 
+            case LLVMInstruction::Type::GetListSize: {
+                assert(step.args.size() == 0);
+                const LLVMListPtr &listPtr = m_listPtrs[step.workList];
+                step.functionReturnReg->value = m_builder.CreateUIToFP(m_builder.CreateCall(resolve_list_size(), listPtr.ptr), m_builder.getDoubleTy());
+                break;
+            }
+
             case LLVMInstruction::Type::Yield:
                 if (!m_warp) {
                     freeHeap();
@@ -878,6 +885,13 @@ void LLVMCodeBuilder::addListItem(List *list)
     m_instructions.push_back(ins);
 }
 
+void LLVMCodeBuilder::addListSize(List *list)
+{
+    LLVMInstruction &ins = createOp(LLVMInstruction::Type::GetListSize, Compiler::StaticType::Number, {}, 0);
+    ins.workList = list;
+    m_listPtrs[list] = LLVMListPtr();
+}
+
 void LLVMCodeBuilder::createAdd()
 {
     createOp(LLVMInstruction::Type::Add, Compiler::StaticType::Number, Compiler::StaticType::Number, 2);
@@ -2018,6 +2032,12 @@ llvm::FunctionCallee LLVMCodeBuilder::resolve_list_get_item()
     return resolveFunction("list_get_item", llvm::FunctionType::get(m_valueDataType->getPointerTo(), { listPtr, m_builder.getInt64Ty() }, false));
 }
 
+llvm::FunctionCallee LLVMCodeBuilder::resolve_list_size()
+{
+    llvm::Type *listPtr = llvm::PointerType::get(llvm::Type::getInt8Ty(m_ctx), 0);
+    return resolveFunction("list_size", llvm::FunctionType::get(m_builder.getInt64Ty(), { listPtr }, false));
+}
+
 llvm::FunctionCallee LLVMCodeBuilder::resolve_strcasecmp()
 {
     llvm::Type *pointerType = llvm::PointerType::get(llvm::Type::getInt8Ty(m_ctx), 0);

src/dev/engine/internal/llvm/llvmcodebuilder.h

@@ -30,6 +30,7 @@ class LLVMCodeBuilder : public ICodeBuilder
         void addVariableValue(Variable *variable) override;
         void addListContents(List *list) override;
         void addListItem(List *list) override;
+        void addListSize(List *list) override;
 
         void createAdd() override;
         void createSub() override;
@@ -146,6 +147,7 @@ class LLVMCodeBuilder : public ICodeBuilder
         llvm::FunctionCallee resolve_list_append_empty();
         llvm::FunctionCallee resolve_list_insert_empty();
         llvm::FunctionCallee resolve_list_get_item();
+        llvm::FunctionCallee resolve_list_size();
         llvm::FunctionCallee resolve_strcasecmp();
 
         Target *m_target = nullptr;

src/dev/engine/internal/llvm/llvminstruction.h

@@ -48,6 +48,7 @@ struct LLVMInstruction
             InsertToList,
             ListReplace,
             GetListItem,
+            GetListSize,
             Yield,
             BeginIf,
             BeginElse,

test/dev/llvm/llvmcodebuilder_test.cpp

@@ -2259,6 +2259,51 @@ TEST_F(LLVMCodeBuilderTest, GetListItem)
     ASSERT_EQ(localList->toString(), "Lorem ipsum dolor sit");
 }
 
+TEST_F(LLVMCodeBuilderTest, GetListSize)
+{
+    EngineMock engine;
+    Stage stage;
+    Sprite sprite;
+    sprite.setEngine(&engine);
+    EXPECT_CALL(engine, stage()).WillRepeatedly(Return(&stage));
+
+    auto globalList = std::make_shared<List>("", "");
+    stage.addList(globalList);
+
+    auto localList = std::make_shared<List>("", "");
+    sprite.addList(localList);
+
+    globalList->append(1);
+    globalList->append(2);
+    globalList->append(3);
+
+    localList->append("Lorem");
+    localList->append("ipsum");
+    localList->append("dolor");
+    localList->append("sit");
+
+    createBuilder(&sprite, true);
+
+    m_builder->addListSize(globalList.get());
+    m_builder->addFunctionCall("test_print_string", Compiler::StaticType::Void, { Compiler::StaticType::String });
+
+    m_builder->addListSize(localList.get());
+    m_builder->addFunctionCall("test_print_string", Compiler::StaticType::Void, { Compiler::StaticType::String });
+
+    static const std::string expected =
+        "3\n"
+        "4\n";
+
+    auto code = m_builder->finalize();
+    auto ctx = code->createExecutionContext(&sprite);
+    testing::internal::CaptureStdout();
+    code->run(ctx.get());
+    ASSERT_EQ(testing::internal::GetCapturedStdout(), expected);
+
+    ASSERT_EQ(globalList->toString(), "123");
+    ASSERT_EQ(localList->toString(), "Lorem ipsum dolor sit");
+}
+
 TEST_F(LLVMCodeBuilderTest, Yield)
 {
     auto build = [this]() {

test/mocks/codebuildermock.h

@@ -14,6 +14,7 @@ class CodeBuilderMock : public ICodeBuilder
         MOCK_METHOD(void, addVariableValue, (Variable *), (override));
         MOCK_METHOD(void, addListContents, (List *), (override));
         MOCK_METHOD(void, addListItem, (List *), (override));
+        MOCK_METHOD(void, addListSize, (List *), (override));
 
         MOCK_METHOD(void, createAdd, (), (override));
         MOCK_METHOD(void, createSub, (), (override));