174 lines
5.6 KiB
C++
174 lines
5.6 KiB
C++
// Copyright 2023 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/tint/transform/manager.h"
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#include <string>
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#include "gtest/gtest.h"
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#include "src/tint/ast/transform/transform.h"
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#include "src/tint/program_builder.h"
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#if TINT_BUILD_IR
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#include "src/tint/ir/builder.h" // nogncheck
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#include "src/tint/ir/transform/transform.h" // nogncheck
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#endif // TINT_BUILD_IR
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namespace tint::transform {
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namespace {
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using TransformManagerTest = testing::Test;
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class AST_NoOp final : public ast::transform::Transform {
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ApplyResult Apply(const Program*, const DataMap&, DataMap&) const override {
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return SkipTransform;
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}
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};
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class AST_AddFunction final : public ast::transform::Transform {
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ApplyResult Apply(const Program* src, const DataMap&, DataMap&) const override {
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ProgramBuilder b;
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CloneContext ctx{&b, src};
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b.Func(b.Sym("ast_func"), {}, b.ty.void_(), {});
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ctx.Clone();
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return Program(std::move(b));
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}
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};
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#if TINT_BUILD_IR
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class IR_AddFunction final : public ir::transform::Transform {
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void Run(ir::Module* mod, const DataMap&, DataMap&) const override {
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ir::Builder builder(*mod);
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auto* func = builder.CreateFunction("ir_func", mod->Types().Get<type::Void>());
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func->StartTarget()->SetInstructions(utils::Vector{builder.Branch(func->EndTarget())});
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mod->functions.Push(func);
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}
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};
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#endif // TINT_BUILD_IR
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Program MakeAST() {
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ProgramBuilder b;
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b.Func(b.Sym("main"), {}, b.ty.void_(), {});
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return Program(std::move(b));
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}
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#if TINT_BUILD_IR
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ir::Module MakeIR() {
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ir::Module mod;
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ir::Builder builder(mod);
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auto* func = builder.CreateFunction("main", mod.Types().Get<type::Void>());
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func->StartTarget()->SetInstructions(utils::Vector{builder.Branch(func->EndTarget())});
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builder.ir.functions.Push(func);
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return mod;
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}
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#endif // TINT_BUILD_IR
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// Test that an AST program is always cloned, even if all transforms are skipped.
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TEST_F(TransformManagerTest, AST_AlwaysClone) {
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Program ast = MakeAST();
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transform::Manager manager;
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transform::DataMap outputs;
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manager.Add<AST_NoOp>();
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auto result = manager.Run(&ast, {}, outputs);
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EXPECT_TRUE(result.IsValid()) << result.Diagnostics();
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EXPECT_NE(result.ID(), ast.ID());
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ASSERT_EQ(result.AST().Functions().Length(), 1u);
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EXPECT_EQ(result.AST().Functions()[0]->name->symbol.Name(), "main");
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}
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#if TINT_BUILD_IR
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// Test that an IR module is mutated in place.
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TEST_F(TransformManagerTest, IR_MutateInPlace) {
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ir::Module ir = MakeIR();
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transform::Manager manager;
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transform::DataMap outputs;
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manager.Add<IR_AddFunction>();
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manager.Run(&ir, {}, outputs);
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ASSERT_EQ(ir.functions.Length(), 2u);
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EXPECT_EQ(ir.NameOf(ir.functions[0]).Name(), "main");
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EXPECT_EQ(ir.NameOf(ir.functions[1]).Name(), "ir_func");
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}
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TEST_F(TransformManagerTest, AST_MixedTransforms_AST_Before_IR) {
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Program ast = MakeAST();
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transform::Manager manager;
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transform::DataMap outputs;
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manager.Add<AST_AddFunction>();
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manager.Add<IR_AddFunction>();
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auto result = manager.Run(&ast, {}, outputs);
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ASSERT_TRUE(result.IsValid()) << result.Diagnostics();
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ASSERT_EQ(result.AST().Functions().Length(), 3u);
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EXPECT_EQ(result.AST().Functions()[0]->name->symbol.Name(), "ast_func");
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EXPECT_EQ(result.AST().Functions()[1]->name->symbol.Name(), "main");
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EXPECT_EQ(result.AST().Functions()[2]->name->symbol.Name(), "ir_func");
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}
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TEST_F(TransformManagerTest, AST_MixedTransforms_IR_Before_AST) {
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Program ast = MakeAST();
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transform::Manager manager;
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transform::DataMap outputs;
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manager.Add<IR_AddFunction>();
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manager.Add<AST_AddFunction>();
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auto result = manager.Run(&ast, {}, outputs);
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ASSERT_TRUE(result.IsValid()) << result.Diagnostics();
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ASSERT_EQ(result.AST().Functions().Length(), 3u);
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EXPECT_EQ(result.AST().Functions()[0]->name->symbol.Name(), "ast_func");
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EXPECT_EQ(result.AST().Functions()[1]->name->symbol.Name(), "main");
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EXPECT_EQ(result.AST().Functions()[2]->name->symbol.Name(), "ir_func");
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}
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TEST_F(TransformManagerTest, IR_MixedTransforms_AST_Before_IR) {
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ir::Module ir = MakeIR();
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transform::Manager manager;
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transform::DataMap outputs;
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manager.Add<AST_AddFunction>();
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manager.Add<IR_AddFunction>();
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manager.Run(&ir, {}, outputs);
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ASSERT_EQ(ir.functions.Length(), 3u);
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EXPECT_EQ(ir.NameOf(ir.functions[0]).Name(), "ast_func");
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EXPECT_EQ(ir.NameOf(ir.functions[1]).Name(), "main");
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EXPECT_EQ(ir.NameOf(ir.functions[2]).Name(), "ir_func");
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}
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TEST_F(TransformManagerTest, IR_MixedTransforms_IR_Before_AST) {
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ir::Module ir = MakeIR();
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transform::Manager manager;
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transform::DataMap outputs;
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manager.Add<IR_AddFunction>();
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manager.Add<AST_AddFunction>();
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manager.Run(&ir, {}, outputs);
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ASSERT_EQ(ir.functions.Length(), 3u);
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EXPECT_EQ(ir.NameOf(ir.functions[0]).Name(), "ast_func");
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EXPECT_EQ(ir.NameOf(ir.functions[1]).Name(), "main");
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EXPECT_EQ(ir.NameOf(ir.functions[2]).Name(), "ir_func");
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}
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#endif // TINT_BUILD_IR
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} // namespace
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} // namespace tint::transform
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