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https://github.com/encounter/dawn-cmake.git
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f12054ea2a
This separates out the usage of the built module from the construction of the module. Previously, we'd happily interleave generator testing with module construction statements. Once the AST / Program is made immutable, this will no longer be possible. Bug: tint:390 Change-Id: Ib4538228e93ca816f5bb796d024f021116609213 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/38360 Reviewed-by: dan sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com>
340 lines
9.2 KiB
C++
340 lines
9.2 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 <string>
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#include "gtest/gtest.h"
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#include "spirv/unified1/spirv.h"
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#include "spirv/unified1/spirv.hpp11"
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#include "src/ast/discard_statement.h"
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#include "src/ast/function.h"
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#include "src/ast/identifier_expression.h"
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#include "src/ast/member_accessor_expression.h"
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#include "src/ast/return_statement.h"
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#include "src/ast/stage_decoration.h"
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#include "src/ast/struct.h"
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#include "src/ast/struct_block_decoration.h"
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#include "src/ast/struct_member_offset_decoration.h"
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#include "src/ast/variable.h"
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#include "src/ast/variable_decl_statement.h"
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#include "src/type/access_control_type.h"
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#include "src/type/f32_type.h"
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#include "src/type/i32_type.h"
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#include "src/type/struct_type.h"
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#include "src/type/void_type.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, Function_Empty) {
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auto* func = Func("a_func", {}, ty.void_, ast::StatementList{},
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ast::FunctionDecorationList{});
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func));
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EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func"
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%2 = OpTypeVoid
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%1 = OpTypeFunction %2
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%3 = OpFunction %2 None %1
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%4 = OpLabel
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OpReturn
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OpFunctionEnd
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)");
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}
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TEST_F(BuilderTest, Function_Terminator_Return) {
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auto* func = Func("a_func", {}, ty.void_,
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ast::StatementList{
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create<ast::ReturnStatement>(),
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},
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ast::FunctionDecorationList{});
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func));
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EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func"
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%2 = OpTypeVoid
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%1 = OpTypeFunction %2
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%3 = OpFunction %2 None %1
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%4 = OpLabel
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OpReturn
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OpFunctionEnd
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)");
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}
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TEST_F(BuilderTest, Function_Terminator_ReturnValue) {
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auto* var_a = Var("a", ast::StorageClass::kPrivate, ty.f32);
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td.RegisterVariableForTesting(var_a);
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auto* func = Func("a_func", {}, ty.void_,
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ast::StatementList{create<ast::ReturnStatement>(Expr("a"))},
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ast::FunctionDecorationList{});
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ASSERT_TRUE(td.DetermineFunction(func)) << td.error();
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateGlobalVariable(var_a)) << b.error();
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ASSERT_TRUE(b.GenerateFunction(func)) << b.error();
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EXPECT_EQ(DumpBuilder(b), R"(OpName %1 "a"
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OpName %7 "a_func"
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%3 = OpTypeFloat 32
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%2 = OpTypePointer Private %3
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%4 = OpConstantNull %3
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%1 = OpVariable %2 Private %4
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%6 = OpTypeVoid
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%5 = OpTypeFunction %6
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%7 = OpFunction %6 None %5
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%8 = OpLabel
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%9 = OpLoad %3 %1
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OpReturnValue %9
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OpFunctionEnd
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)");
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}
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TEST_F(BuilderTest, Function_Terminator_Discard) {
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auto* func = Func("a_func", {}, ty.void_,
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ast::StatementList{
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create<ast::DiscardStatement>(),
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},
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ast::FunctionDecorationList{});
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func));
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EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func"
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%2 = OpTypeVoid
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%1 = OpTypeFunction %2
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%3 = OpFunction %2 None %1
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%4 = OpLabel
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OpKill
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OpFunctionEnd
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)");
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}
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TEST_F(BuilderTest, Function_WithParams) {
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ast::VariableList params = {Var("a", ast::StorageClass::kFunction, ty.f32),
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Var("b", ast::StorageClass::kFunction, ty.i32)};
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auto* func = Func("a_func", params, ty.f32,
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ast::StatementList{create<ast::ReturnStatement>(Expr("a"))},
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ast::FunctionDecorationList{});
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td.RegisterVariableForTesting(func->params()[0]);
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td.RegisterVariableForTesting(func->params()[1]);
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EXPECT_TRUE(td.DetermineFunction(func));
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func));
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EXPECT_EQ(DumpBuilder(b), R"(OpName %4 "a_func"
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OpName %5 "a"
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OpName %6 "b"
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%2 = OpTypeFloat 32
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%3 = OpTypeInt 32 1
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%1 = OpTypeFunction %2 %2 %3
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%4 = OpFunction %2 None %1
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%5 = OpFunctionParameter %2
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%6 = OpFunctionParameter %3
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%7 = OpLabel
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%8 = OpLoad %2 %5
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OpReturnValue %8
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OpFunctionEnd
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)") << DumpBuilder(b);
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}
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TEST_F(BuilderTest, Function_WithBody) {
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auto* func = Func("a_func", {}, ty.void_,
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ast::StatementList{
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create<ast::ReturnStatement>(),
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},
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ast::FunctionDecorationList{});
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func));
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EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "a_func"
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%2 = OpTypeVoid
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%1 = OpTypeFunction %2
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%3 = OpFunction %2 None %1
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%4 = OpLabel
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OpReturn
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OpFunctionEnd
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)");
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}
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TEST_F(BuilderTest, FunctionType) {
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auto* func = Func("a_func", {}, ty.void_, ast::StatementList{},
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ast::FunctionDecorationList{});
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func));
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EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeVoid
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%1 = OpTypeFunction %2
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)");
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}
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TEST_F(BuilderTest, FunctionType_DeDuplicate) {
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auto* func1 = Func("a_func", {}, ty.void_, ast::StatementList{},
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ast::FunctionDecorationList{});
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auto* func2 = Func("b_func", {}, ty.void_, ast::StatementList{},
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ast::FunctionDecorationList{});
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.GenerateFunction(func1));
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ASSERT_TRUE(b.GenerateFunction(func2));
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EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeVoid
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%1 = OpTypeFunction %2
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)");
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}
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// https://crbug.com/tint/297
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TEST_F(BuilderTest, Emit_Multiple_EntryPoint_With_Same_ModuleVar) {
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// [[block]] struct Data {
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// [[offset(0)]] d : f32;
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// };
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// [[binding(0), group(0)]] var<storage> data : Data;
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//
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// [[stage(compute)]]
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// fn a() -> void {
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// return;
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// }
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//
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// [[stage(compute)]]
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// fn b() -> void {
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// return;
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// }
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ast::StructDecorationList s_decos;
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s_decos.push_back(create<ast::StructBlockDecoration>());
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auto* str = create<ast::Struct>(
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ast::StructMemberList{Member("d", ty.f32, {MemberOffset(0)})}, s_decos);
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auto* s = ty.struct_("Data", str);
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type::AccessControl ac(ast::AccessControl::kReadWrite, s);
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auto* data_var = Var("data", ast::StorageClass::kStorage, &ac, nullptr,
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ast::VariableDecorationList{
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create<ast::BindingDecoration>(0),
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create<ast::GroupDecoration>(0),
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});
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mod->AddConstructedType(s);
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td.RegisterVariableForTesting(data_var);
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mod->AddGlobalVariable(data_var);
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{
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auto* var = Var("v", ast::StorageClass::kFunction, ty.f32,
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MemberAccessor("data", "d"), ast::VariableDecorationList{});
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auto* func =
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Func("a", ast::VariableList{}, ty.void_,
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ast::StatementList{
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create<ast::VariableDeclStatement>(var),
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create<ast::ReturnStatement>(),
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},
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ast::FunctionDecorationList{
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create<ast::StageDecoration>(ast::PipelineStage::kCompute),
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});
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mod->AddFunction(func);
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}
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{
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auto* var = Var("v", ast::StorageClass::kFunction, ty.f32,
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MemberAccessor("data", "d"), ast::VariableDecorationList{});
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auto* func =
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Func("b", ast::VariableList{}, ty.void_,
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ast::StatementList{
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create<ast::VariableDeclStatement>(var),
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create<ast::ReturnStatement>(),
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},
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ast::FunctionDecorationList{
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create<ast::StageDecoration>(ast::PipelineStage::kCompute),
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});
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mod->AddFunction(func);
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}
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ASSERT_TRUE(td.Determine()) << td.error();
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spirv::Builder& b = Build();
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ASSERT_TRUE(b.Build());
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EXPECT_EQ(DumpBuilder(b), R"(OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %7 "a"
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OpEntryPoint GLCompute %17 "b"
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OpExecutionMode %7 LocalSize 1 1 1
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OpExecutionMode %17 LocalSize 1 1 1
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OpName %3 "Data"
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OpMemberName %3 0 "d"
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OpName %1 "data"
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OpName %7 "a"
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OpName %14 "v"
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OpName %17 "b"
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OpName %21 "v"
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OpDecorate %3 Block
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OpMemberDecorate %3 0 Offset 0
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OpDecorate %1 Binding 0
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OpDecorate %1 DescriptorSet 0
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%4 = OpTypeFloat 32
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%3 = OpTypeStruct %4
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%2 = OpTypePointer StorageBuffer %3
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%1 = OpVariable %2 StorageBuffer
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%6 = OpTypeVoid
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%5 = OpTypeFunction %6
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%9 = OpTypeInt 32 0
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%10 = OpConstant %9 0
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%11 = OpTypePointer StorageBuffer %4
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%15 = OpTypePointer Function %4
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%16 = OpConstantNull %4
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%7 = OpFunction %6 None %5
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%8 = OpLabel
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%14 = OpVariable %15 Function %16
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%12 = OpAccessChain %11 %1 %10
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%13 = OpLoad %4 %12
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OpStore %14 %13
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OpReturn
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OpFunctionEnd
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%17 = OpFunction %6 None %5
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%18 = OpLabel
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%21 = OpVariable %15 Function %16
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%19 = OpAccessChain %11 %1 %10
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%20 = OpLoad %4 %19
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OpStore %21 %20
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OpReturn
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OpFunctionEnd
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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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