| // 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 <memory> |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/assignment_statement.h" |
| #include "src/ast/bool_literal.h" |
| #include "src/ast/else_statement.h" |
| #include "src/ast/identifier_expression.h" |
| #include "src/ast/if_statement.h" |
| #include "src/ast/int_literal.h" |
| #include "src/ast/scalar_constructor_expression.h" |
| #include "src/ast/type/bool_type.h" |
| #include "src/ast/type/i32_type.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, If_Empty) { |
| ast::type::BoolType bool_type; |
| |
| // if (true) { |
| // } |
| auto cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| |
| ast::IfStatement expr(std::move(cond), ast::StatementList{}); |
| |
| Context ctx; |
| TypeDeterminer td(&ctx); |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b; |
| b.push_function(Function{}); |
| |
| EXPECT_TRUE(b.GenerateIfStatement(&expr)) << b.error(); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%1 = OpTypeBool |
| %2 = OpConstantTrue %1 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(OpSelectionMerge %3 None |
| OpBranchConditional %2 %4 %3 |
| %4 = OpLabel |
| OpBranch %3 |
| %3 = OpLabel |
| )"); |
| } |
| |
| TEST_F(BuilderTest, If_WithStatements) { |
| ast::type::BoolType bool_type; |
| ast::type::I32Type i32; |
| |
| // if (true) { |
| // v = 2; |
| // } |
| auto var = |
| std::make_unique<ast::Variable>("v", ast::StorageClass::kPrivate, &i32); |
| |
| ast::StatementList body; |
| body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 2)))); |
| |
| auto cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| |
| ast::IfStatement expr(std::move(cond), std::move(body)); |
| |
| Context ctx; |
| TypeDeterminer td(&ctx); |
| td.RegisterVariableForTesting(var.get()); |
| |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b; |
| b.push_function(Function{}); |
| ASSERT_TRUE(b.GenerateGlobalVariable(var.get())) << b.error(); |
| |
| EXPECT_TRUE(b.GenerateIfStatement(&expr)) << b.error(); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeInt 32 1 |
| %2 = OpTypePointer Private %3 |
| %1 = OpVariable %2 Private |
| %4 = OpTypeBool |
| %5 = OpConstantTrue %4 |
| %8 = OpConstant %3 2 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(OpSelectionMerge %6 None |
| OpBranchConditional %5 %7 %6 |
| %7 = OpLabel |
| OpStore %1 %8 |
| OpBranch %6 |
| %6 = OpLabel |
| )"); |
| } |
| |
| TEST_F(BuilderTest, If_WithElse) { |
| ast::type::BoolType bool_type; |
| ast::type::I32Type i32; |
| |
| // if (true) { |
| // v = 2; |
| // } else { |
| // v = 3; |
| // } |
| auto var = |
| std::make_unique<ast::Variable>("v", ast::StorageClass::kPrivate, &i32); |
| |
| ast::StatementList body; |
| body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 2)))); |
| |
| ast::StatementList else_body; |
| else_body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 3)))); |
| |
| ast::ElseStatementList else_stmts; |
| else_stmts.push_back( |
| std::make_unique<ast::ElseStatement>(std::move(else_body))); |
| |
| auto cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| |
| ast::IfStatement expr(std::move(cond), std::move(body)); |
| expr.set_else_statements(std::move(else_stmts)); |
| |
| Context ctx; |
| TypeDeterminer td(&ctx); |
| td.RegisterVariableForTesting(var.get()); |
| |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b; |
| b.push_function(Function{}); |
| ASSERT_TRUE(b.GenerateGlobalVariable(var.get())) << b.error(); |
| |
| EXPECT_TRUE(b.GenerateIfStatement(&expr)) << b.error(); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeInt 32 1 |
| %2 = OpTypePointer Private %3 |
| %1 = OpVariable %2 Private |
| %4 = OpTypeBool |
| %5 = OpConstantTrue %4 |
| %9 = OpConstant %3 2 |
| %10 = OpConstant %3 3 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(OpSelectionMerge %6 None |
| OpBranchConditional %5 %7 %8 |
| %7 = OpLabel |
| OpStore %1 %9 |
| OpBranch %6 |
| %8 = OpLabel |
| OpStore %1 %10 |
| OpBranch %6 |
| %6 = OpLabel |
| )"); |
| } |
| |
| TEST_F(BuilderTest, If_WithElseIf) { |
| ast::type::BoolType bool_type; |
| ast::type::I32Type i32; |
| |
| // if (true) { |
| // v = 2; |
| // } elseif (true) { |
| // v = 3; |
| // } |
| auto var = |
| std::make_unique<ast::Variable>("v", ast::StorageClass::kPrivate, &i32); |
| |
| ast::StatementList body; |
| body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 2)))); |
| |
| ast::StatementList else_body; |
| else_body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 3)))); |
| |
| auto else_cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| |
| ast::ElseStatementList else_stmts; |
| else_stmts.push_back(std::make_unique<ast::ElseStatement>( |
| std::move(else_cond), std::move(else_body))); |
| |
| auto cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| |
| ast::IfStatement expr(std::move(cond), std::move(body)); |
| expr.set_else_statements(std::move(else_stmts)); |
| |
| Context ctx; |
| TypeDeterminer td(&ctx); |
| td.RegisterVariableForTesting(var.get()); |
| |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b; |
| b.push_function(Function{}); |
| ASSERT_TRUE(b.GenerateGlobalVariable(var.get())) << b.error(); |
| |
| EXPECT_TRUE(b.GenerateIfStatement(&expr)) << b.error(); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeInt 32 1 |
| %2 = OpTypePointer Private %3 |
| %1 = OpVariable %2 Private |
| %4 = OpTypeBool |
| %5 = OpConstantTrue %4 |
| %9 = OpConstant %3 2 |
| %12 = OpConstant %3 3 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(OpSelectionMerge %6 None |
| OpBranchConditional %5 %7 %8 |
| %7 = OpLabel |
| OpStore %1 %9 |
| OpBranch %6 |
| %8 = OpLabel |
| OpSelectionMerge %10 None |
| OpBranchConditional %5 %11 %10 |
| %11 = OpLabel |
| OpStore %1 %12 |
| OpBranch %10 |
| %10 = OpLabel |
| OpBranch %6 |
| %6 = OpLabel |
| )"); |
| } |
| |
| TEST_F(BuilderTest, If_WithMultiple) { |
| ast::type::BoolType bool_type; |
| ast::type::I32Type i32; |
| |
| // if (true) { |
| // v = 2; |
| // } elseif (true) { |
| // v = 3; |
| // } elseif (false) { |
| // v = 4; |
| // } else { |
| // v = 5; |
| // } |
| auto var = |
| std::make_unique<ast::Variable>("v", ast::StorageClass::kPrivate, &i32); |
| |
| ast::StatementList body; |
| body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 2)))); |
| ast::StatementList elseif_1_body; |
| elseif_1_body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 3)))); |
| ast::StatementList elseif_2_body; |
| elseif_2_body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 4)))); |
| ast::StatementList else_body; |
| else_body.push_back(std::make_unique<ast::AssignmentStatement>( |
| std::make_unique<ast::IdentifierExpression>("v"), |
| std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::IntLiteral>(&i32, 5)))); |
| |
| auto elseif_1_cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| auto elseif_2_cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, false)); |
| |
| ast::ElseStatementList else_stmts; |
| else_stmts.push_back(std::make_unique<ast::ElseStatement>( |
| std::move(elseif_1_cond), std::move(elseif_1_body))); |
| else_stmts.push_back(std::make_unique<ast::ElseStatement>( |
| std::move(elseif_2_cond), std::move(elseif_2_body))); |
| else_stmts.push_back( |
| std::make_unique<ast::ElseStatement>(std::move(else_body))); |
| |
| auto cond = std::make_unique<ast::ScalarConstructorExpression>( |
| std::make_unique<ast::BoolLiteral>(&bool_type, true)); |
| |
| ast::IfStatement expr(std::move(cond), std::move(body)); |
| expr.set_else_statements(std::move(else_stmts)); |
| |
| Context ctx; |
| TypeDeterminer td(&ctx); |
| td.RegisterVariableForTesting(var.get()); |
| |
| ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error(); |
| |
| Builder b; |
| b.push_function(Function{}); |
| ASSERT_TRUE(b.GenerateGlobalVariable(var.get())) << b.error(); |
| |
| EXPECT_TRUE(b.GenerateIfStatement(&expr)) << b.error(); |
| EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeInt 32 1 |
| %2 = OpTypePointer Private %3 |
| %1 = OpVariable %2 Private |
| %4 = OpTypeBool |
| %5 = OpConstantTrue %4 |
| %9 = OpConstant %3 2 |
| %13 = OpConstant %3 3 |
| %14 = OpConstantFalse %4 |
| %18 = OpConstant %3 4 |
| %19 = OpConstant %3 5 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), |
| R"(OpSelectionMerge %6 None |
| OpBranchConditional %5 %7 %8 |
| %7 = OpLabel |
| OpStore %1 %9 |
| OpBranch %6 |
| %8 = OpLabel |
| OpSelectionMerge %10 None |
| OpBranchConditional %5 %11 %12 |
| %11 = OpLabel |
| OpStore %1 %13 |
| OpBranch %10 |
| %12 = OpLabel |
| OpSelectionMerge %15 None |
| OpBranchConditional %14 %16 %17 |
| %16 = OpLabel |
| OpStore %1 %18 |
| OpBranch %15 |
| %17 = OpLabel |
| OpStore %1 %19 |
| OpBranch %15 |
| %15 = OpLabel |
| OpBranch %10 |
| %10 = OpLabel |
| OpBranch %6 |
| %6 = OpLabel |
| )"); |
| } |
| |
| TEST_F(BuilderTest, DISABLED_If_WithBreak) { |
| // if (a) { |
| // break; |
| // } |
| } |
| |
| TEST_F(BuilderTest, DISABLED_If_WithContinue) { |
| // if (a) { |
| // continue; |
| // } |
| } |
| |
| TEST_F(BuilderTest, DISABLED_IF_WithReturn) { |
| // if (a) { |
| // return; |
| // } |
| } |
| |
| } // namespace |
| } // namespace spirv |
| } // namespace writer |
| } // namespace tint |