| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/array_accessor_expression.h" |
| #include "src/ast/identifier_expression.h" |
| #include "src/ast/int_literal.h" |
| #include "src/ast/module.h" |
| #include "src/ast/scalar_constructor_expression.h" |
| #include "src/ast/type/array_type.h" |
| #include "src/ast/type/f32_type.h" |
| #include "src/ast/type/i32_type.h" |
| #include "src/ast/type/vector_type.h" |
| #include "src/ast/variable.h" |
| #include "src/context.h" |
| #include "src/type_determiner.h" |
| #include "src/writer/spirv/builder.h" |
| #include "src/writer/spirv/spv_dump.h" |
| |
| namespace tint { |
| namespace writer { |
| namespace spirv { |
| namespace { |
| |
| using BuilderTest = testing::Test; |
| |
| TEST_F(BuilderTest, ArrayAccessor) { |
| ast::type::I32Type i32; |
| ast::type::F32Type f32; |
| ast::type::VectorType vec3(&f32, 3); |
| |
| ast::Variable var("ary", ast::StorageClass::kFunction, &vec3); |
| |
| auto ary = std::make_unique<ast::IdentifierExpression>("ary"); |
| auto idx_expr = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 1)); |
| |
| ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx_expr)); |
| |
| Context ctx; |
| ast::Module mod; |
| TypeDeterminer td(&ctx, &mod); |
| td.RegisterVariableForTesting(&var); |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b(&mod); |
| b.push_function(Function{}); |
| ASSERT_TRUE(b.GenerateFunctionVariable(&var)) << b.error(); |
| |
| EXPECT_EQ(b.GenerateAccessorExpression(&expr), 5u); |
| |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%4 = OpTypeFloat 32 |
| %3 = OpTypeVector %4 3 |
| %2 = OpTypePointer Function %3 |
| %6 = OpTypeInt 32 1 |
| %7 = OpConstant %6 1 |
| %8 = OpTypePointer Function %4 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].variables()), |
| R"(%1 = OpVariable %2 Function |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(%5 = OpAccessChain %8 %1 %7 |
| )"); |
| } |
| |
| TEST_F(BuilderTest, ArrayAccessor_MultiLevel) { |
| ast::type::I32Type i32; |
| ast::type::F32Type f32; |
| ast::type::VectorType vec3(&f32, 3); |
| ast::type::ArrayType ary4(&vec3, 4); |
| |
| // ary = array<vec3<f32>, 4> |
| // ary[3][2]; |
| |
| ast::Variable var("ary", ast::StorageClass::kFunction, &ary4); |
| |
| ast::ArrayAccessorExpression expr( |
| std::make_unique<ast::ArrayAccessorExpression>( |
| std::make_unique<ast::IdentifierExpression>("ary"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 3))), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 2))); |
| |
| Context ctx; |
| ast::Module mod; |
| TypeDeterminer td(&ctx, &mod); |
| td.RegisterVariableForTesting(&var); |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b(&mod); |
| b.push_function(Function{}); |
| ASSERT_TRUE(b.GenerateFunctionVariable(&var)) << b.error(); |
| |
| EXPECT_EQ(b.GenerateAccessorExpression(&expr), 8u); |
| |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%5 = OpTypeFloat 32 |
| %4 = OpTypeVector %5 3 |
| %6 = OpTypeInt 32 0 |
| %7 = OpConstant %6 4 |
| %3 = OpTypeArray %4 %7 |
| %2 = OpTypePointer Function %3 |
| %9 = OpTypeInt 32 1 |
| %10 = OpConstant %9 2 |
| %11 = OpConstant %9 3 |
| %12 = OpTypePointer Function %5 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].variables()), |
| R"(%1 = OpVariable %2 Function |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(%8 = OpAccessChain %12 %1 %11 %10 |
| )"); |
| } |
| |
| } // namespace |
| } // namespace spirv |
| } // namespace writer |
| } // namespace tint |