97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
// Copyright 2020 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 <memory>
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#include "gtest/gtest.h"
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#include "src/ast/assignment_statement.h"
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#include "src/ast/block_statement.h"
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#include "src/ast/float_literal.h"
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#include "src/ast/identifier_expression.h"
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#include "src/ast/scalar_constructor_expression.h"
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#include "src/ast/type/f32_type.h"
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#include "src/ast/variable_decl_statement.h"
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#include "src/context.h"
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#include "src/type_determiner.h"
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#include "src/writer/spirv/builder.h"
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#include "src/writer/spirv/spv_dump.h"
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#include "src/writer/spirv/test_helper.h"
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namespace tint {
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namespace writer {
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namespace spirv {
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namespace {
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using BuilderTest = TestHelper;
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TEST_F(BuilderTest, Block) {
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ast::type::F32Type f32;
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// Note, this test uses shadow variables which aren't allowed in WGSL but
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// serves to prove the block code is pushing new scopes as needed.
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ast::BlockStatement outer;
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outer.append(create<ast::VariableDeclStatement>(
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create<ast::Variable>("var", ast::StorageClass::kFunction, &f32)));
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outer.append(create<ast::AssignmentStatement>(
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create<ast::IdentifierExpression>("var"),
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create<ast::ScalarConstructorExpression>(
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create<ast::FloatLiteral>(&f32, 1.0f))));
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auto inner = create<ast::BlockStatement>();
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inner->append(create<ast::VariableDeclStatement>(
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create<ast::Variable>("var", ast::StorageClass::kFunction, &f32)));
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inner->append(create<ast::AssignmentStatement>(
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create<ast::IdentifierExpression>("var"),
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create<ast::ScalarConstructorExpression>(
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create<ast::FloatLiteral>(&f32, 2.0f))));
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outer.append(std::move(inner));
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outer.append(create<ast::AssignmentStatement>(
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create<ast::IdentifierExpression>("var"),
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create<ast::ScalarConstructorExpression>(
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create<ast::FloatLiteral>(&f32, 3.0f))));
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ASSERT_TRUE(td.DetermineResultType(&outer)) << td.error();
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b.push_function(Function{});
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ASSERT_FALSE(b.has_error()) << b.error();
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EXPECT_TRUE(b.GenerateStatement(&outer)) << b.error();
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EXPECT_FALSE(b.has_error());
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EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeFloat 32
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%2 = OpTypePointer Function %3
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%4 = OpConstantNull %3
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%5 = OpConstant %3 1
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%7 = OpConstant %3 2
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%8 = OpConstant %3 3
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)");
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EXPECT_EQ(DumpInstructions(b.functions()[0].variables()),
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R"(%1 = OpVariable %2 Function %4
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%6 = OpVariable %2 Function %4
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)");
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EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()), R"(OpStore %1 %5
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OpStore %6 %7
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OpStore %1 %8
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)");
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}
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} // namespace
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} // namespace spirv
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} // namespace writer
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} // namespace tint
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