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// 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 "gmock/gmock.h"
#include "src/tint/reader/spirv/parser_impl_test_helper.h"
#include "src/tint/reader/spirv/spirv_tools_helpers_test.h"
namespace tint::reader::spirv {
namespace {
using ::testing::HasSubstr;
std::string Caps() {
return R"(
OpCapability Shader
OpMemoryModel Logical Simple
)";
}
std::string Preamble() {
return Caps() + R"(
OpEntryPoint Fragment %main "x_100"
OpExecutionMode %main OriginUpperLeft
)";
}
std::string MainBody() {
return R"(
%main = OpFunction %void None %voidfn
%main_entry = OpLabel
OpReturn
OpFunctionEnd
)";
}
/// @returns a SPIR-V assembly segment which assigns debug names
/// to particular IDs.
std::string Names(std::vector<std::string> ids) {
std::ostringstream outs;
for (auto& id : ids) {
outs << " OpName %" << id << " \"" << id << "\"\n";
}
return outs.str();
}
std::string CommonTypes() {
return R"(
%void = OpTypeVoid
%voidfn = OpTypeFunction %void
%float = OpTypeFloat 32
%uint = OpTypeInt 32 0
%int = OpTypeInt 32 1
)";
}
std::string BuiltinPosition() {
return R"(OpDecorate %position BuiltIn Position
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%ptr = OpTypePointer Output %v4float
%position = OpVariable %ptr Output
%void = OpTypeVoid
%voidfn = OpTypeFunction %void
%uint = OpTypeInt 32 0
%int = OpTypeInt 32 1
)";
}
TEST_F(SpvParserTest, EmitFunctions_NoFunctions) {
auto p = parser(test::Assemble(
R"(
OpCapability Shader
OpMemoryModel Logical Simple
)" + CommonTypes()));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, Not(HasSubstr("Function{")));
p->SkipDumpingPending("Not valid for Vulkan: needs an entry point");
}
TEST_F(SpvParserTest, EmitFunctions_FunctionWithoutBody) {
auto p = parser(test::Assemble(Preamble() + Names({"main"}) + CommonTypes() + R"(
%main = OpFunction %void None %voidfn
OpFunctionEnd
)"));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, Not(HasSubstr("Function{")));
p->SkipDumpingPending("Missing an entry point body requires Linkage");
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_Vertex) {
std::string input = Caps() + R"(OpEntryPoint Vertex %main "main" %position )" +
Names({"main"}) + BuiltinPosition() + R"(
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd)";
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
struct main_out {
@builtin(position)
x_2_1 : vec4<f32>,
}
)")) << program_ast;
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(vertex)
fn main() -> main_out {
)"));
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_Fragment) {
std::string input = Caps() + R"(
OpEntryPoint Fragment %main "main"
OpExecutionMode %main OriginUpperLeft
)" + Names({"main"}) + CommonTypes() +
MainBody();
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(fragment)
fn main() {
)"));
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_GLCompute) {
std::string input = Caps() + R"(
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
)" + Names({"main"}) + CommonTypes() +
MainBody();
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(compute) @workgroup_size(1i, 1i, 1i)
fn main() {
)"));
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_MultipleEntryPoints) {
std::string input = Caps() +
R"(
OpEntryPoint Fragment %main "first_shader"
OpEntryPoint Fragment %main "second_shader"
OpExecutionMode %main OriginUpperLeft
)" + Names({"main"}) + CommonTypes() +
MainBody();
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(fragment)
fn first_shader() {
)"));
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(fragment)
fn second_shader() {
)"));
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_GLCompute_LocalSize_Only) {
std::string input = Caps() + R"(
OpEntryPoint GLCompute %main "comp_main"
OpExecutionMode %main LocalSize 2 4 8
)" + Names({"main"}) + CommonTypes() +
R"(
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd)";
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(compute) @workgroup_size(2i, 4i, 8i)
fn comp_main() {
)")) << program_ast;
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_WorkgroupSizeBuiltin_Constant_Only) {
std::string input = Caps() + R"(OpEntryPoint GLCompute %main "comp_main"
OpDecorate %wgsize BuiltIn WorkgroupSize
)" + CommonTypes() + R"(
%uvec3 = OpTypeVector %uint 3
%uint_3 = OpConstant %uint 3
%uint_5 = OpConstant %uint 5
%uint_7 = OpConstant %uint 7
%wgsize = OpConstantComposite %uvec3 %uint_3 %uint_5 %uint_7
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd)";
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(compute) @workgroup_size(3i, 5i, 7i)
fn comp_main() {
)")) << program_ast;
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_WorkgroupSizeBuiltin_SpecConstant_Only) {
std::string input = Caps() +
R"(OpEntryPoint GLCompute %main "comp_main"
OpDecorate %wgsize BuiltIn WorkgroupSize
OpDecorate %uint_3 SpecId 0
OpDecorate %uint_5 SpecId 1
OpDecorate %uint_7 SpecId 2
)" + CommonTypes() + R"(
%uvec3 = OpTypeVector %uint 3
%uint_3 = OpSpecConstant %uint 3
%uint_5 = OpSpecConstant %uint 5
%uint_7 = OpSpecConstant %uint 7
%wgsize = OpSpecConstantComposite %uvec3 %uint_3 %uint_5 %uint_7
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd)";
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(compute) @workgroup_size(3i, 5i, 7i)
fn comp_main() {
)")) << program_ast;
}
TEST_F(SpvParserTest, EmitFunctions_Function_EntryPoint_WorkgroupSize_MixedConstantSpecConstant) {
std::string input = Caps() +
R"(OpEntryPoint GLCompute %main "comp_main"
OpDecorate %wgsize BuiltIn WorkgroupSize
OpDecorate %uint_3 SpecId 0
OpDecorate %uint_7 SpecId 2
)" + CommonTypes() + R"(
%uvec3 = OpTypeVector %uint 3
%uint_3 = OpSpecConstant %uint 3
%uint_5 = OpConstant %uint 5
%uint_7 = OpSpecConstant %uint 7
%wgsize = OpSpecConstantComposite %uvec3 %uint_3 %uint_5 %uint_7
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd)";
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(compute) @workgroup_size(3i, 5i, 7i)
fn comp_main() {
)")) << program_ast;
}
TEST_F(SpvParserTest,
// I had to shorten the name to pass the linter.
EmitFunctions_Function_EntryPoint_LocalSize_And_WGSBuiltin_SpecConstant) {
// WorkgroupSize builtin wins.
std::string input = Caps() +
R"(OpEntryPoint GLCompute %main "comp_main"
OpExecutionMode %main LocalSize 2 4 8
OpDecorate %wgsize BuiltIn WorkgroupSize
OpDecorate %uint_3 SpecId 0
OpDecorate %uint_5 SpecId 1
OpDecorate %uint_7 SpecId 2
)" + CommonTypes() + R"(
%uvec3 = OpTypeVector %uint 3
%uint_3 = OpSpecConstant %uint 3
%uint_5 = OpSpecConstant %uint 5
%uint_7 = OpSpecConstant %uint 7
%wgsize = OpSpecConstantComposite %uvec3 %uint_3 %uint_5 %uint_7
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd)";
auto p = parser(test::Assemble(input));
ASSERT_TRUE(p->BuildAndParseInternalModule());
ASSERT_TRUE(p->error().empty()) << p->error();
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(
@stage(compute) @workgroup_size(3i, 5i, 7i)
fn comp_main() {
)")) << program_ast;
}
TEST_F(SpvParserTest, EmitFunctions_VoidFunctionWithoutParams) {
auto p = parser(test::Assemble(Preamble() + Names({"another_function"}) + CommonTypes() + R"(
%another_function = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd
)" + MainBody()));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(fn another_function() {
)"));
}
TEST_F(SpvParserTest, EmitFunctions_CalleePrecedesCaller) {
auto p = parser(test::Assemble(
Preamble() + Names({"root", "branch", "leaf", "leaf_result", "branch_result"}) +
CommonTypes() + R"(
%uintfn = OpTypeFunction %uint
%uint_0 = OpConstant %uint 0
%root = OpFunction %void None %voidfn
%root_entry = OpLabel
%branch_result = OpFunctionCall %uint %branch
OpReturn
OpFunctionEnd
%branch = OpFunction %uint None %uintfn
%branch_entry = OpLabel
%leaf_result = OpFunctionCall %uint %leaf
OpReturnValue %leaf_result
OpFunctionEnd
%leaf = OpFunction %uint None %uintfn
%leaf_entry = OpLabel
OpReturnValue %uint_0
OpFunctionEnd
)" + MainBody()));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(fn leaf() -> u32 {
return 0u;
}
fn branch() -> u32 {
let leaf_result : u32 = leaf();
return leaf_result;
}
fn root() {
let branch_result : u32 = branch();
return;
}
)")) << program_ast;
}
TEST_F(SpvParserTest, EmitFunctions_NonVoidResultType) {
auto p = parser(test::Assemble(Preamble() + Names({"ret_float"}) + CommonTypes() + R"(
%float_0 = OpConstant %float 0.0
%fn_ret_float = OpTypeFunction %float
%ret_float = OpFunction %float None %fn_ret_float
%ret_float_entry = OpLabel
OpReturnValue %float_0
OpFunctionEnd
)" + MainBody()));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(fn ret_float() -> f32 {
return 0.0f;
}
fn x_100_1() {
return;
}
@stage(fragment)
fn x_100() {
x_100_1();
}
)")) << program_ast;
}
TEST_F(SpvParserTest, EmitFunctions_MixedParamTypes) {
auto p = parser(
test::Assemble(Preamble() + Names({"mixed_params", "a", "b", "c"}) + CommonTypes() + R"(
%fn_mixed_params = OpTypeFunction %void %uint %float %int
%mixed_params = OpFunction %void None %fn_mixed_params
%a = OpFunctionParameter %uint
%b = OpFunctionParameter %float
%c = OpFunctionParameter %int
%mixed_entry = OpLabel
OpReturn
OpFunctionEnd
)" + MainBody()));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(fn mixed_params(a : u32, b : f32, c : i32) {
return;
}
)"));
}
TEST_F(SpvParserTest, EmitFunctions_GenerateParamNames) {
auto p = parser(test::Assemble(Preamble() + Names({"mixed_params"}) + CommonTypes() + R"(
%fn_mixed_params = OpTypeFunction %void %uint %float %int
%mixed_params = OpFunction %void None %fn_mixed_params
%14 = OpFunctionParameter %uint
%15 = OpFunctionParameter %float
%16 = OpFunctionParameter %int
%mixed_entry = OpLabel
OpReturn
OpFunctionEnd
)" + MainBody()));
EXPECT_TRUE(p->BuildAndParseInternalModule());
EXPECT_TRUE(p->error().empty());
Program program = p->program();
const auto program_ast = test::ToString(program);
EXPECT_THAT(program_ast, HasSubstr(R"(fn mixed_params(x_14 : u32, x_15 : f32, x_16 : i32) {
return;
}
)")) << program_ast;
}
} // namespace
} // namespace tint::reader::spirv