mirror of
https://github.com/encounter/dawn-cmake.git
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d614dd5d12
Implements https://github.com/gpuweb/gpuweb/pull/1447 SPIR-V Reader is still TODO, but continues to function as the offset decoration is still supported. Bug: tint:626 Bug: tint:629 Change-Id: Id574eb3a5c6729559382812de37b23f0c68fd406 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/43640 Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
302 lines
7.7 KiB
C++
302 lines
7.7 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 "src/ast/stage_decoration.h"
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#include "src/ast/struct_block_decoration.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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Func("a_func", {}, ty.void_(), ast::StatementList{}, ast::DecorationList{});
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spirv::Builder& b = Build();
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auto* func = program->AST().Functions()[0];
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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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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::DecorationList{});
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spirv::Builder& b = Build();
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auto* func = program->AST().Functions()[0];
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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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Global("a", ty.f32(), ast::StorageClass::kPrivate);
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Func("a_func", {}, ty.void_(),
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ast::StatementList{create<ast::ReturnStatement>(Expr("a"))},
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ast::DecorationList{});
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spirv::Builder& b = Build();
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auto* var_a = program->AST().GlobalVariables()[0];
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auto* func = program->AST().Functions()[0];
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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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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::DecorationList{});
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spirv::Builder& b = Build();
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auto* func = program->AST().Functions()[0];
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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", ty.f32(), ast::StorageClass::kFunction),
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Var("b", ty.i32(), ast::StorageClass::kFunction)};
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Func("a_func", params, ty.f32(),
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ast::StatementList{create<ast::ReturnStatement>(Expr("a"))},
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ast::DecorationList{});
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spirv::Builder& b = Build();
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auto* func = program->AST().Functions()[0];
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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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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::DecorationList{});
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spirv::Builder& b = Build();
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auto* func = program->AST().Functions()[0];
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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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Func("a_func", {}, ty.void_(), ast::StatementList{}, ast::DecorationList{});
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spirv::Builder& b = Build();
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auto* func = program->AST().Functions()[0];
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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::DecorationList{});
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auto* func2 = Func("b_func", {}, ty.void_(), ast::StatementList{},
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ast::DecorationList{});
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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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// 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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auto* s = Structure("Data", {Member("d", ty.f32())},
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{create<ast::StructBlockDecoration>()});
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type::AccessControl ac(ast::AccessControl::kReadWrite, s);
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Global("data", &ac, ast::StorageClass::kStorage, nullptr,
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ast::DecorationList{
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create<ast::BindingDecoration>(0),
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create<ast::GroupDecoration>(0),
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});
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{
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auto* var = Var("v", ty.f32(), ast::StorageClass::kFunction,
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MemberAccessor("data", "d"));
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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::DecorationList{
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create<ast::StageDecoration>(ast::PipelineStage::kCompute),
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});
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}
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{
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auto* var = Var("v", ty.f32(), ast::StorageClass::kFunction,
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MemberAccessor("data", "d"));
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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::DecorationList{
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create<ast::StageDecoration>(ast::PipelineStage::kCompute),
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});
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}
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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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