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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/transform/msl.h"
#include "src/transform/test_helper.h"
namespace tint {
namespace transform {
namespace {
using MslTest = TransformTest;
TEST_F(MslTest, HandleModuleScopeVariables_Basic) {
auto* src = R"(
var<private> p : f32;
var<workgroup> w : f32;
[[stage(compute), workgroup_size(1)]]
fn main() {
w = p;
}
)";
auto* expect = R"(
[[stage(compute), workgroup_size(1)]]
fn main([[builtin(local_invocation_index)]] local_invocation_index : u32) {
[[internal(disable_validation__ignore_storage_class)]] var<workgroup> tint_symbol_1 : f32;
[[internal(disable_validation__ignore_storage_class)]] var<private> tint_symbol_2 : f32;
if ((local_invocation_index == 0u)) {
tint_symbol_1 = f32();
}
workgroupBarrier();
tint_symbol_1 = tint_symbol_2;
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_FunctionCalls) {
auto* src = R"(
var<private> p : f32;
var<workgroup> w : f32;
fn no_uses() {
}
fn bar(a : f32, b : f32) {
p = a;
w = b;
}
fn foo(a : f32) {
let b : f32 = 2.0;
bar(a, b);
no_uses();
}
[[stage(compute), workgroup_size(1)]]
fn main() {
foo(1.0);
}
)";
auto* expect = R"(
fn no_uses() {
}
fn bar(a : f32, b : f32, tint_symbol_1 : ptr<private, f32>, tint_symbol_2 : ptr<workgroup, f32>) {
*(tint_symbol_1) = a;
*(tint_symbol_2) = b;
}
fn foo(a : f32, tint_symbol_3 : ptr<private, f32>, tint_symbol_4 : ptr<workgroup, f32>) {
let b : f32 = 2.0;
bar(a, b, tint_symbol_3, tint_symbol_4);
no_uses();
}
[[stage(compute), workgroup_size(1)]]
fn main([[builtin(local_invocation_index)]] local_invocation_index : u32) {
[[internal(disable_validation__ignore_storage_class)]] var<workgroup> tint_symbol_5 : f32;
[[internal(disable_validation__ignore_storage_class)]] var<private> tint_symbol_6 : f32;
if ((local_invocation_index == 0u)) {
tint_symbol_5 = f32();
}
workgroupBarrier();
foo(1.0, &(tint_symbol_6), &(tint_symbol_5));
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_Constructors) {
auto* src = R"(
var<private> a : f32 = 1.0;
var<private> b : f32 = f32();
[[stage(compute), workgroup_size(1)]]
fn main() {
let x : f32 = a + b;
}
)";
auto* expect = R"(
[[stage(compute), workgroup_size(1)]]
fn main() {
[[internal(disable_validation__ignore_storage_class)]] var<private> tint_symbol : f32 = 1.0;
[[internal(disable_validation__ignore_storage_class)]] var<private> tint_symbol_1 : f32 = f32();
let x : f32 = (tint_symbol + tint_symbol_1);
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_Pointers) {
auto* src = R"(
var<private> p : f32;
var<workgroup> w : f32;
[[stage(compute), workgroup_size(1)]]
fn main() {
let p_ptr : ptr<private, f32> = &p;
let w_ptr : ptr<workgroup, f32> = &w;
let x : f32 = *p_ptr + *w_ptr;
*p_ptr = x;
}
)";
auto* expect = R"(
[[stage(compute), workgroup_size(1)]]
fn main([[builtin(local_invocation_index)]] local_invocation_index : u32) {
[[internal(disable_validation__ignore_storage_class)]] var<workgroup> tint_symbol_1 : f32;
[[internal(disable_validation__ignore_storage_class)]] var<private> tint_symbol_2 : f32;
if ((local_invocation_index == 0u)) {
tint_symbol_1 = f32();
}
workgroupBarrier();
let x : f32 = (tint_symbol_2 + tint_symbol_1);
tint_symbol_2 = x;
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_UnusedVariables) {
auto* src = R"(
var<private> p : f32;
var<workgroup> w : f32;
[[stage(compute), workgroup_size(1)]]
fn main() {
}
)";
auto* expect = R"(
[[stage(compute), workgroup_size(1)]]
fn main() {
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_OtherVariables) {
auto* src = R"(
[[block]]
struct S {
a : f32;
};
[[group(0), binding(0)]]
var<uniform> u : S;
[[stage(compute), workgroup_size(1)]]
fn main() {
}
)";
auto* expect = R"(
[[block]]
struct S {
a : f32;
};
[[group(0), binding(0)]] var<uniform> u : S;
[[stage(compute), workgroup_size(1)]]
fn main() {
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_HandleTypes_Basic) {
auto* src = R"(
[[group(0), binding(0)]] var t : texture_2d<f32>;
[[group(0), binding(1)]] var s : sampler;
[[stage(compute), workgroup_size(1)]]
fn main() {
ignore(t);
ignore(s);
}
)";
auto* expect = R"(
[[stage(compute), workgroup_size(1)]]
fn main([[group(0), binding(0), internal(disable_validation__entry_point_parameter)]] tint_symbol : texture_2d<f32>, [[group(0), binding(1), internal(disable_validation__entry_point_parameter)]] tint_symbol_1 : sampler) {
ignore(tint_symbol);
ignore(tint_symbol_1);
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_HandleTypes_FunctionCalls) {
auto* src = R"(
[[group(0), binding(0)]] var t : texture_2d<f32>;
[[group(0), binding(1)]] var s : sampler;
fn no_uses() {
}
fn bar(a : f32, b : f32) {
ignore(t);
ignore(s);
}
fn foo(a : f32) {
let b : f32 = 2.0;
ignore(t);
bar(a, b);
no_uses();
}
[[stage(compute), workgroup_size(1)]]
fn main() {
foo(1.0);
}
)";
auto* expect = R"(
fn no_uses() {
}
fn bar(a : f32, b : f32, tint_symbol : texture_2d<f32>, tint_symbol_1 : sampler) {
ignore(tint_symbol);
ignore(tint_symbol_1);
}
fn foo(a : f32, tint_symbol_2 : texture_2d<f32>, tint_symbol_3 : sampler) {
let b : f32 = 2.0;
ignore(tint_symbol_2);
bar(a, b, tint_symbol_2, tint_symbol_3);
no_uses();
}
[[stage(compute), workgroup_size(1)]]
fn main([[group(0), binding(0), internal(disable_validation__entry_point_parameter)]] tint_symbol_4 : texture_2d<f32>, [[group(0), binding(1), internal(disable_validation__entry_point_parameter)]] tint_symbol_5 : sampler) {
foo(1.0, tint_symbol_4, tint_symbol_5);
}
)";
auto got = Run<Msl>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(MslTest, HandleModuleScopeVariables_EmtpyModule) {
auto* src = "";
auto got = Run<Msl>(src);
EXPECT_EQ(src, str(got));
}
} // namespace
} // namespace transform
} // namespace tint