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// Copyright 2021 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/transform/num_workgroups_from_uniform.h"
#include <utility>
#include "src/tint/transform/canonicalize_entry_point_io.h"
#include "src/tint/transform/test_helper.h"
#include "src/tint/transform/unshadow.h"
namespace tint::transform {
namespace {
using NumWorkgroupsFromUniformTest = TransformTest;
TEST_F(NumWorkgroupsFromUniformTest, ShouldRunEmptyModule) {
auto* src = R"()";
DataMap data;
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
EXPECT_FALSE(ShouldRun<NumWorkgroupsFromUniform>(src, data));
}
TEST_F(NumWorkgroupsFromUniformTest, ShouldRunHasNumWorkgroups) {
auto* src = R"(
@compute @workgroup_size(1)
fn main(@builtin(num_workgroups) num_wgs : vec3<u32>) {
}
)";
DataMap data;
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
EXPECT_TRUE(ShouldRun<NumWorkgroupsFromUniform>(src, data));
}
TEST_F(NumWorkgroupsFromUniformTest, Error_MissingTransformData) {
auto* src = R"(
@compute @workgroup_size(1)
fn main(@builtin(num_workgroups) num_wgs : vec3<u32>) {
}
)";
auto* expect =
"error: missing transform data for "
"tint::transform::NumWorkgroupsFromUniform";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, Basic) {
auto* src = R"(
@compute @workgroup_size(1)
fn main(@builtin(num_workgroups) num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
)";
auto* expect = R"(
struct tint_symbol_2 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(30) var<uniform> tint_symbol_3 : tint_symbol_2;
fn main_inner(num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
@compute @workgroup_size(1)
fn main() {
main_inner(tint_symbol_3.num_workgroups);
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, StructOnlyMember) {
auto* src = R"(
struct Builtins {
@builtin(num_workgroups) num_wgs : vec3<u32>,
};
@compute @workgroup_size(1)
fn main(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
)";
auto* expect = R"(
struct tint_symbol_2 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(30) var<uniform> tint_symbol_3 : tint_symbol_2;
struct Builtins {
num_wgs : vec3<u32>,
}
fn main_inner(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main() {
main_inner(Builtins(tint_symbol_3.num_workgroups));
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, StructOnlyMember_OutOfOrder) {
auto* src = R"(
@compute @workgroup_size(1)
fn main(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
struct Builtins {
@builtin(num_workgroups) num_wgs : vec3<u32>,
};
)";
auto* expect = R"(
struct tint_symbol_2 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(30) var<uniform> tint_symbol_3 : tint_symbol_2;
fn main_inner(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main() {
main_inner(Builtins(tint_symbol_3.num_workgroups));
}
struct Builtins {
num_wgs : vec3<u32>,
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, StructMultipleMembers) {
auto* src = R"(
struct Builtins {
@builtin(global_invocation_id) gid : vec3<u32>,
@builtin(num_workgroups) num_wgs : vec3<u32>,
@builtin(workgroup_id) wgid : vec3<u32>,
};
@compute @workgroup_size(1)
fn main(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
)";
auto* expect = R"(
struct tint_symbol_2 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(30) var<uniform> tint_symbol_3 : tint_symbol_2;
struct Builtins {
gid : vec3<u32>,
num_wgs : vec3<u32>,
wgid : vec3<u32>,
}
struct tint_symbol_1 {
@builtin(global_invocation_id)
gid : vec3<u32>,
@builtin(workgroup_id)
wgid : vec3<u32>,
}
fn main_inner(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main(tint_symbol : tint_symbol_1) {
main_inner(Builtins(tint_symbol.gid, tint_symbol_3.num_workgroups, tint_symbol.wgid));
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, StructMultipleMembers_OutOfOrder) {
auto* src = R"(
@compute @workgroup_size(1)
fn main(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
struct Builtins {
@builtin(global_invocation_id) gid : vec3<u32>,
@builtin(num_workgroups) num_wgs : vec3<u32>,
@builtin(workgroup_id) wgid : vec3<u32>,
};
)";
auto* expect = R"(
struct tint_symbol_2 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(30) var<uniform> tint_symbol_3 : tint_symbol_2;
struct tint_symbol_1 {
@builtin(global_invocation_id)
gid : vec3<u32>,
@builtin(workgroup_id)
wgid : vec3<u32>,
}
fn main_inner(in : Builtins) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main(tint_symbol : tint_symbol_1) {
main_inner(Builtins(tint_symbol.gid, tint_symbol_3.num_workgroups, tint_symbol.wgid));
}
struct Builtins {
gid : vec3<u32>,
num_wgs : vec3<u32>,
wgid : vec3<u32>,
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, MultipleEntryPoints) {
auto* src = R"(
struct Builtins1 {
@builtin(num_workgroups) num_wgs : vec3<u32>,
};
struct Builtins2 {
@builtin(global_invocation_id) gid : vec3<u32>,
@builtin(num_workgroups) num_wgs : vec3<u32>,
@builtin(workgroup_id) wgid : vec3<u32>,
};
@compute @workgroup_size(1)
fn main1(in : Builtins1) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main2(in : Builtins2) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main3(@builtin(num_workgroups) num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
)";
auto* expect = R"(
struct tint_symbol_6 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(30) var<uniform> tint_symbol_7 : tint_symbol_6;
struct Builtins1 {
num_wgs : vec3<u32>,
}
struct Builtins2 {
gid : vec3<u32>,
num_wgs : vec3<u32>,
wgid : vec3<u32>,
}
fn main1_inner(in : Builtins1) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main1() {
main1_inner(Builtins1(tint_symbol_7.num_workgroups));
}
struct tint_symbol_3 {
@builtin(global_invocation_id)
gid : vec3<u32>,
@builtin(workgroup_id)
wgid : vec3<u32>,
}
fn main2_inner(in : Builtins2) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main2(tint_symbol_2 : tint_symbol_3) {
main2_inner(Builtins2(tint_symbol_2.gid, tint_symbol_7.num_workgroups, tint_symbol_2.wgid));
}
fn main3_inner(num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
@compute @workgroup_size(1)
fn main3() {
main3_inner(tint_symbol_7.num_workgroups);
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
TEST_F(NumWorkgroupsFromUniformTest, NoUsages) {
auto* src = R"(
struct Builtins {
@builtin(global_invocation_id) gid : vec3<u32>,
@builtin(workgroup_id) wgid : vec3<u32>,
};
@compute @workgroup_size(1)
fn main(in : Builtins) {
}
)";
auto* expect = R"(
struct Builtins {
gid : vec3<u32>,
wgid : vec3<u32>,
}
struct tint_symbol_1 {
@builtin(global_invocation_id)
gid : vec3<u32>,
@builtin(workgroup_id)
wgid : vec3<u32>,
}
fn main_inner(in : Builtins) {
}
@compute @workgroup_size(1)
fn main(tint_symbol : tint_symbol_1) {
main_inner(Builtins(tint_symbol.gid, tint_symbol.wgid));
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
data.Add<NumWorkgroupsFromUniform::Config>(sem::BindingPoint{0, 30u});
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
// Test that group 0 binding 0 is used if no bound resource in the program and binding point is not
// specified in NumWorkgroupsFromUniform::Config.
TEST_F(NumWorkgroupsFromUniformTest, UnspecifiedBindingPoint_NoResourceBound) {
auto* src = R"(
struct Builtins1 {
@builtin(num_workgroups) num_wgs : vec3<u32>,
};
struct Builtins2 {
@builtin(global_invocation_id) gid : vec3<u32>,
@builtin(num_workgroups) num_wgs : vec3<u32>,
@builtin(workgroup_id) wgid : vec3<u32>,
};
@compute @workgroup_size(1)
fn main1(in : Builtins1) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main2(in : Builtins2) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main3(@builtin(num_workgroups) num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
)";
auto* expect = R"(
struct tint_symbol_6 {
num_workgroups : vec3<u32>,
}
@group(0) @binding(0) var<uniform> tint_symbol_7 : tint_symbol_6;
struct Builtins1 {
num_wgs : vec3<u32>,
}
struct Builtins2 {
gid : vec3<u32>,
num_wgs : vec3<u32>,
wgid : vec3<u32>,
}
fn main1_inner(in : Builtins1) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main1() {
main1_inner(Builtins1(tint_symbol_7.num_workgroups));
}
struct tint_symbol_3 {
@builtin(global_invocation_id)
gid : vec3<u32>,
@builtin(workgroup_id)
wgid : vec3<u32>,
}
fn main2_inner(in : Builtins2) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main2(tint_symbol_2 : tint_symbol_3) {
main2_inner(Builtins2(tint_symbol_2.gid, tint_symbol_7.num_workgroups, tint_symbol_2.wgid));
}
fn main3_inner(num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
@compute @workgroup_size(1)
fn main3() {
main3_inner(tint_symbol_7.num_workgroups);
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
// Make binding point unspecified.
data.Add<NumWorkgroupsFromUniform::Config>(std::nullopt);
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
// Test that binding 0 of the largest used group plus 1 is used if at least one resource is bound in
// the program and binding point is not specified in NumWorkgroupsFromUniform::Config.
TEST_F(NumWorkgroupsFromUniformTest, UnspecifiedBindingPoint_MultipleResourceBound) {
auto* src = R"(
struct Builtins1 {
@builtin(num_workgroups) num_wgs : vec3<u32>,
};
struct Builtins2 {
@builtin(global_invocation_id) gid : vec3<u32>,
@builtin(num_workgroups) num_wgs : vec3<u32>,
@builtin(workgroup_id) wgid : vec3<u32>,
};
struct S0 {
@size(4)
m0 : u32,
m1 : array<u32>,
};
struct S1 {
@size(4)
m0 : u32,
m1 : array<u32, 6>,
};
@group(0) @binding(0) var g2 : texture_2d<f32>;
@group(1) @binding(0) var g3 : texture_depth_2d;
@group(1) @binding(1) var g4 : texture_storage_2d<rg32float, write>;
@group(3) @binding(0) var g5 : texture_depth_cube_array;
@group(4) @binding(0) var g6 : texture_external;
@group(0) @binding(1) var<storage, read_write> g8 : S0;
@group(1) @binding(3) var<storage, read> g9 : S0;
@group(3) @binding(2) var<storage, read_write> g10 : S0;
@compute @workgroup_size(1)
fn main1(in : Builtins1) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
g8.m0 = 1u;
}
@compute @workgroup_size(1)
fn main2(in : Builtins2) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main3(@builtin(num_workgroups) num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
)";
auto* expect = R"(
struct tint_symbol_6 {
num_workgroups : vec3<u32>,
}
@group(5) @binding(0) var<uniform> tint_symbol_7 : tint_symbol_6;
struct Builtins1 {
num_wgs : vec3<u32>,
}
struct Builtins2 {
gid : vec3<u32>,
num_wgs : vec3<u32>,
wgid : vec3<u32>,
}
struct S0 {
@size(4)
m0 : u32,
m1 : array<u32>,
}
struct S1 {
@size(4)
m0 : u32,
m1 : array<u32, 6>,
}
@group(0) @binding(0) var g2 : texture_2d<f32>;
@group(1) @binding(0) var g3 : texture_depth_2d;
@group(1) @binding(1) var g4 : texture_storage_2d<rg32float, write>;
@group(3) @binding(0) var g5 : texture_depth_cube_array;
@group(4) @binding(0) var g6 : texture_external;
@group(0) @binding(1) var<storage, read_write> g8 : S0;
@group(1) @binding(3) var<storage, read> g9 : S0;
@group(3) @binding(2) var<storage, read_write> g10 : S0;
fn main1_inner(in : Builtins1) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
g8.m0 = 1u;
}
@compute @workgroup_size(1)
fn main1() {
main1_inner(Builtins1(tint_symbol_7.num_workgroups));
}
struct tint_symbol_3 {
@builtin(global_invocation_id)
gid : vec3<u32>,
@builtin(workgroup_id)
wgid : vec3<u32>,
}
fn main2_inner(in : Builtins2) {
let groups_x = in.num_wgs.x;
let groups_y = in.num_wgs.y;
let groups_z = in.num_wgs.z;
}
@compute @workgroup_size(1)
fn main2(tint_symbol_2 : tint_symbol_3) {
main2_inner(Builtins2(tint_symbol_2.gid, tint_symbol_7.num_workgroups, tint_symbol_2.wgid));
}
fn main3_inner(num_wgs : vec3<u32>) {
let groups_x = num_wgs.x;
let groups_y = num_wgs.y;
let groups_z = num_wgs.z;
}
@compute @workgroup_size(1)
fn main3() {
main3_inner(tint_symbol_7.num_workgroups);
}
)";
DataMap data;
data.Add<CanonicalizeEntryPointIO::Config>(CanonicalizeEntryPointIO::ShaderStyle::kHlsl);
// Make binding point unspecified.
data.Add<NumWorkgroupsFromUniform::Config>(std::nullopt);
auto got = Run<Unshadow, CanonicalizeEntryPointIO, NumWorkgroupsFromUniform>(src, data);
EXPECT_EQ(expect, str(got));
}
} // namespace
} // namespace tint::transform