| // 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 "src/tint/lang/spirv/writer/ast_printer/helper_test.h" |
| #include "src/tint/lang/spirv/writer/common/spv_dump_test.h" |
| |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| namespace tint::spirv::writer { |
| namespace { |
| |
| using SpirvASTPrinterTest = TestHelper; |
| |
| TEST_F(SpirvASTPrinterTest, Block) { |
| // Note, this test uses shadow variables which aren't allowed in WGSL but |
| // serves to prove the block code is pushing new scopes as needed. |
| auto* inner = Block(Decl(Var("var", ty.f32())), Assign("var", 2_f)); |
| auto* outer = Block(Decl(Var("var", ty.f32())), Assign("var", 1_f), inner, Assign("var", 3_f)); |
| |
| WrapInFunction(outer); |
| |
| Builder& b = Build(); |
| |
| b.PushFunctionForTesting(); |
| ASSERT_FALSE(b.has_error()) << b.Diagnostics(); |
| |
| EXPECT_TRUE(b.GenerateStatement(outer)) << b.Diagnostics(); |
| EXPECT_FALSE(b.has_error()); |
| |
| EXPECT_EQ(DumpInstructions(b.Module().Types()), R"(%3 = OpTypeFloat 32 |
| %2 = OpTypePointer Function %3 |
| %4 = OpConstantNull %3 |
| %5 = OpConstant %3 1 |
| %7 = OpConstant %3 2 |
| %8 = OpConstant %3 3 |
| )"); |
| |
| EXPECT_EQ(DumpInstructions(b.CurrentFunction().variables()), |
| R"(%1 = OpVariable %2 Function %4 |
| %6 = OpVariable %2 Function %4 |
| )"); |
| |
| EXPECT_EQ(DumpInstructions(b.CurrentFunction().instructions()), |
| R"(OpStore %1 %5 |
| OpStore %6 %7 |
| OpStore %1 %8 |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::spirv::writer |