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// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/core/type/pointer.h"
#include "src/tint/lang/core/type/sampled_texture.h"
#include "src/tint/lang/spirv/writer/common/helper_test.h"
namespace tint::spirv::writer {
namespace {
using namespace tint::core::fluent_types; // NOLINT
using namespace tint::core::number_suffixes; // NOLINT
TEST_F(SpirvWriterTest, FunctionVar_NoInit) {
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
b.Var("v", ty.ptr<function, i32>());
b.Return(func);
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Function_int Function");
}
TEST_F(SpirvWriterTest, FunctionVar_WithInit) {
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* v = b.Var("v", ty.ptr<function, i32>());
v->SetInitializer(b.Constant(42_i));
b.Return(func);
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Function_int Function");
EXPECT_INST("OpStore %v %int_42");
}
TEST_F(SpirvWriterTest, FunctionVar_DeclInsideBlock) {
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* i = b.If(true);
b.Append(i->True(), [&] {
auto* v = b.Var("v", ty.ptr<function, i32>());
v->SetInitializer(b.Constant(42_i));
b.ExitIf(i);
});
b.Return(func);
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%foo = OpFunction %void None %3
%4 = OpLabel
%v = OpVariable %_ptr_Function_int Function
OpSelectionMerge %5 None
OpBranchConditional %true %6 %5
%6 = OpLabel
OpStore %v %int_42
OpBranch %5
%5 = OpLabel
OpReturn
OpFunctionEnd
)");
}
TEST_F(SpirvWriterTest, FunctionVar_Load) {
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* v = b.Var("v", ty.ptr<function, i32>());
auto* result = b.Load(v);
b.Return(func);
mod.SetName(result, "result");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Function_int Function");
EXPECT_INST("%result = OpLoad %int %v");
}
TEST_F(SpirvWriterTest, FunctionVar_Store) {
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* v = b.Var("v", ty.ptr<function, i32>());
b.Store(v, 42_i);
b.Return(func);
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Function_int Function");
EXPECT_INST("OpStore %v %int_42");
}
TEST_F(SpirvWriterTest, PrivateVar_NoInit) {
mod.root_block->Append(b.Var("v", ty.ptr<private_, i32>()));
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Private_int Private");
}
TEST_F(SpirvWriterTest, PrivateVar_WithInit) {
auto* v = b.Var("v", ty.ptr<private_, i32>());
v->SetInitializer(b.Constant(42_i));
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Private_int Private %int_42");
}
TEST_F(SpirvWriterTest, PrivateVar_LoadAndStore) {
auto* v = b.Var("v", ty.ptr<private_, i32>());
v->SetInitializer(b.Constant(42_i));
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kFragment);
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
auto* add = b.Add(ty.i32(), load, 1_i);
b.Store(v, add);
b.Return(func);
mod.SetName(load, "load");
mod.SetName(add, "add");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Private_int Private %int_42");
EXPECT_INST("%load = OpLoad %int %v");
EXPECT_INST("OpStore %v %add");
}
TEST_F(SpirvWriterTest, WorkgroupVar) {
mod.root_block->Append(b.Var("v", ty.ptr<workgroup, i32>()));
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Workgroup_int Workgroup");
}
TEST_F(SpirvWriterTest, WorkgroupVar_LoadAndStore) {
auto* v = mod.root_block->Append(b.Var("v", ty.ptr<workgroup, i32>()));
auto* func = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kCompute,
std::array{1u, 1u, 1u});
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
auto* add = b.Add(ty.i32(), load, 1_i);
b.Store(v, add);
b.Return(func);
mod.SetName(load, "load");
mod.SetName(add, "add");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%v = OpVariable %_ptr_Workgroup_int Workgroup");
EXPECT_INST("%load = OpLoad %int %v");
EXPECT_INST("OpStore %v %add");
}
TEST_F(SpirvWriterTest, WorkgroupVar_ZeroInitializeWithExtension) {
mod.root_block->Append(b.Var("v", ty.ptr<workgroup, i32>()));
// Create a writer with the zero_init_workgroup_memory flag set to `true`.
ASSERT_TRUE(Generate({}, /* zero_init_workgroup_memory */ true)) << Error() << output_;
EXPECT_INST("%4 = OpConstantNull %int");
EXPECT_INST("%v = OpVariable %_ptr_Workgroup_int Workgroup %4");
}
TEST_F(SpirvWriterTest, StorageVar_ReadOnly) {
auto* v = b.Var("v", ty.ptr<storage, i32, read>());
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %tint_symbol_1 Block
OpDecorate %1 DescriptorSet 0
OpDecorate %1 Binding 0
OpDecorate %1 NonWritable
)");
EXPECT_INST(R"(
%tint_symbol_1 = OpTypeStruct %int
%_ptr_StorageBuffer_tint_symbol_1 = OpTypePointer StorageBuffer %tint_symbol_1
%1 = OpVariable %_ptr_StorageBuffer_tint_symbol_1 StorageBuffer
)");
}
TEST_F(SpirvWriterTest, StorageVar_LoadAndStore) {
auto* v = b.Var("v", ty.ptr<storage, i32, read_write>());
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kCompute,
std::array{1u, 1u, 1u});
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
auto* add = b.Add(ty.i32(), load, 1_i);
b.Store(v, add);
b.Return(func);
mod.SetName(load, "load");
mod.SetName(add, "add");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%9 = OpAccessChain %_ptr_StorageBuffer_int %1 %uint_0
%load = OpLoad %int %9
%add = OpIAdd %int %load %int_1
%16 = OpAccessChain %_ptr_StorageBuffer_int %1 %uint_0
OpStore %16 %add
)");
}
TEST_F(SpirvWriterTest, StorageVar_WriteOnly) {
auto* v = b.Var("v", ty.ptr<storage, i32, write>());
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kCompute,
std::array{1u, 1u, 1u});
b.Append(func->Block(), [&] {
b.Store(v, 42_i);
b.Return(func);
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %tint_symbol_1 Block
OpDecorate %1 DescriptorSet 0
OpDecorate %1 Binding 0
OpDecorate %1 NonReadable
)");
EXPECT_INST(R"(
%9 = OpAccessChain %_ptr_StorageBuffer_int %1 %uint_0
OpStore %9 %int_42
)");
}
TEST_F(SpirvWriterTest, UniformVar) {
auto* v = b.Var("v", ty.ptr<uniform, i32>());
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %tint_symbol_1 Block
OpDecorate %1 DescriptorSet 0
OpDecorate %1 Binding 0
)");
EXPECT_INST(R"(
%tint_symbol_1 = OpTypeStruct %int
%_ptr_Uniform_tint_symbol_1 = OpTypePointer Uniform %tint_symbol_1
%1 = OpVariable %_ptr_Uniform_tint_symbol_1 Uniform
)");
}
TEST_F(SpirvWriterTest, UniformVar_Load) {
auto* v = b.Var("v", ty.ptr<uniform, i32>());
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kCompute,
std::array{1u, 1u, 1u});
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
b.Return(func);
mod.SetName(load, "load");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%9 = OpAccessChain %_ptr_Uniform_int %1 %uint_0
%load = OpLoad %int %9
)");
}
TEST_F(SpirvWriterTest, PushConstantVar) {
auto* v = b.Var("v", ty.ptr<push_constant, i32>());
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %tint_symbol_1 Block
)");
EXPECT_INST(R"(
%tint_symbol_1 = OpTypeStruct %int
%_ptr_PushConstant_tint_symbol_1 = OpTypePointer PushConstant %tint_symbol_1
%1 = OpVariable %_ptr_PushConstant_tint_symbol_1 PushConstant
)");
}
TEST_F(SpirvWriterTest, PushConstantVar_Load) {
auto* v = b.Var("v", ty.ptr<push_constant, i32>());
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.i32());
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
b.Return(func, load);
mod.SetName(load, "load");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%8 = OpAccessChain %_ptr_PushConstant_int %1 %uint_0
%load = OpLoad %int %8
OpReturnValue %load
)");
}
TEST_F(SpirvWriterTest, SamplerVar) {
auto* v = b.Var("v", ty.ptr(core::AddressSpace::kHandle, ty.sampler(), core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %v DescriptorSet 0
OpDecorate %v Binding 0
)");
EXPECT_INST(R"(
%3 = OpTypeSampler
%_ptr_UniformConstant_3 = OpTypePointer UniformConstant %3
%v = OpVariable %_ptr_UniformConstant_3 UniformConstant
)");
}
TEST_F(SpirvWriterTest, SamplerVar_Load) {
auto* v = b.Var("v", ty.ptr(core::AddressSpace::kHandle, ty.sampler(), core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
b.Return(func);
mod.SetName(load, "load");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%load = OpLoad %3 %v");
}
TEST_F(SpirvWriterTest, TextureVar) {
auto* v = b.Var(
"v", ty.ptr(core::AddressSpace::kHandle,
ty.Get<core::type::SampledTexture>(core::type::TextureDimension::k2d, ty.f32()),
core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %v DescriptorSet 0
OpDecorate %v Binding 0
)");
EXPECT_INST(R"(
%3 = OpTypeImage %float 2D 0 0 0 1 Unknown
%_ptr_UniformConstant_3 = OpTypePointer UniformConstant %3
%v = OpVariable %_ptr_UniformConstant_3 UniformConstant
)");
}
TEST_F(SpirvWriterTest, TextureVar_Load) {
auto* v = b.Var(
"v", ty.ptr(core::AddressSpace::kHandle,
ty.Get<core::type::SampledTexture>(core::type::TextureDimension::k2d, ty.f32()),
core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* load = b.Load(v);
b.Return(func);
mod.SetName(load, "load");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%load = OpLoad %3 %v");
}
TEST_F(SpirvWriterTest, ReadOnlyStorageTextureVar) {
auto format = core::TexelFormat::kRgba8Unorm;
auto* v = b.Var("v", ty.ptr(core::AddressSpace::kHandle,
ty.Get<core::type::StorageTexture>(
core::type::TextureDimension::k2d, format, read,
core::type::StorageTexture::SubtypeFor(format, ty)),
core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %v DescriptorSet 0
OpDecorate %v Binding 0
OpDecorate %v NonWritable
)");
EXPECT_INST(R"(
%3 = OpTypeImage %float 2D 0 0 0 2 Rgba8
%_ptr_UniformConstant_3 = OpTypePointer UniformConstant %3
%v = OpVariable %_ptr_UniformConstant_3 UniformConstant
)");
}
TEST_F(SpirvWriterTest, ReadWriteStorageTextureVar) {
auto format = core::TexelFormat::kRgba8Unorm;
auto* v = b.Var("v", ty.ptr(core::AddressSpace::kHandle,
ty.Get<core::type::StorageTexture>(
core::type::TextureDimension::k2d, format, read_write,
core::type::StorageTexture::SubtypeFor(format, ty)),
core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %v DescriptorSet 0
OpDecorate %v Binding 0
)");
EXPECT_INST(R"(
%3 = OpTypeImage %float 2D 0 0 0 2 Rgba8
%_ptr_UniformConstant_3 = OpTypePointer UniformConstant %3
%v = OpVariable %_ptr_UniformConstant_3 UniformConstant
)");
}
TEST_F(SpirvWriterTest, WriteOnlyStorageTextureVar) {
auto format = core::TexelFormat::kRgba8Unorm;
auto* v = b.Var("v", ty.ptr(core::AddressSpace::kHandle,
ty.Get<core::type::StorageTexture>(
core::type::TextureDimension::k2d, format, write,
core::type::StorageTexture::SubtypeFor(format, ty)),
core::Access::kRead));
v->SetBindingPoint(0, 0);
mod.root_block->Append(v);
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
OpDecorate %v DescriptorSet 0
OpDecorate %v Binding 0
OpDecorate %v NonReadable
)");
EXPECT_INST(R"(
%3 = OpTypeImage %float 2D 0 0 0 2 Rgba8
%_ptr_UniformConstant_3 = OpTypePointer UniformConstant %3
%v = OpVariable %_ptr_UniformConstant_3 UniformConstant
)");
}
} // namespace
} // namespace tint::spirv::writer