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// Copyright 2023 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/ir/transform/block_decorated_structs.h"
#include <utility>
#include "src/tint/ir/transform/test_helper.h"
#include "src/tint/type/array.h"
#include "src/tint/type/pointer.h"
#include "src/tint/type/struct.h"
namespace tint::ir::transform {
namespace {
using IR_BlockDecoratedStructsTest = TransformTest;
using namespace tint::number_suffixes; // NOLINT
TEST_F(IR_BlockDecoratedStructsTest, NoRootBlock) {
auto* func = b.CreateFunction("foo", ty.void_());
func->StartTarget()->Append(b.Return(func));
mod.functions.Push(func);
auto* expect = R"(
%foo = func():void -> %b1 {
%b1 = block {
ret
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
TEST_F(IR_BlockDecoratedStructsTest, Scalar_Uniform) {
auto* buffer = b.Declare(
ty.pointer(ty.i32(), builtin::AddressSpace::kUniform, builtin::Access::kReadWrite));
buffer->SetBindingPoint(0, 0);
b.CreateRootBlockIfNeeded()->Append(buffer);
auto* func = b.CreateFunction("foo", ty.i32());
auto* load = b.Load(buffer);
func->StartTarget()->Append(load);
func->StartTarget()->Append(b.Return(func, utils::Vector{load}));
mod.functions.Push(func);
auto* expect = R"(
tint_symbol_1 = struct @align(4), @block {
tint_symbol:i32 @offset(0)
}
# Root block
%b1 = block {
%1:ptr<uniform, tint_symbol_1, read_write> = var @binding_point(0, 0)
}
%foo = func():i32 -> %b2 {
%b2 = block {
%3:ptr<uniform, i32, read_write> = access %1, 0u
%4:i32 = load %3
ret %4
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
TEST_F(IR_BlockDecoratedStructsTest, Scalar_Storage) {
auto* buffer = b.Declare(
ty.pointer(ty.i32(), builtin::AddressSpace::kStorage, builtin::Access::kReadWrite));
buffer->SetBindingPoint(0, 0);
b.CreateRootBlockIfNeeded()->Append(buffer);
auto* func = b.CreateFunction("foo", ty.void_());
func->StartTarget()->Append(b.Store(buffer, b.Constant(42_i)));
func->StartTarget()->Append(b.Return(func));
mod.functions.Push(func);
auto* expect = R"(
tint_symbol_1 = struct @align(4), @block {
tint_symbol:i32 @offset(0)
}
# Root block
%b1 = block {
%1:ptr<storage, tint_symbol_1, read_write> = var @binding_point(0, 0)
}
%foo = func():void -> %b2 {
%b2 = block {
%3:ptr<storage, i32, read_write> = access %1, 0u
store %3, 42i
ret
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
TEST_F(IR_BlockDecoratedStructsTest, RuntimeArray) {
auto* buffer = b.Declare(ty.pointer(ty.runtime_array(ty.i32()), builtin::AddressSpace::kStorage,
builtin::Access::kReadWrite));
buffer->SetBindingPoint(0, 0);
b.CreateRootBlockIfNeeded()->Append(buffer);
auto* func = b.CreateFunction("foo", ty.void_());
auto* access =
b.Access(ty.pointer(ty.i32(), builtin::AddressSpace::kStorage, builtin::Access::kReadWrite),
buffer, utils::Vector{b.Constant(1_u)});
func->StartTarget()->Append(access);
func->StartTarget()->Append(b.Store(access, b.Constant(42_i)));
func->StartTarget()->Append(b.Return(func));
mod.functions.Push(func);
auto* expect = R"(
tint_symbol_1 = struct @align(4), @block {
tint_symbol:array<i32> @offset(0)
}
# Root block
%b1 = block {
%1:ptr<storage, tint_symbol_1, read_write> = var @binding_point(0, 0)
}
%foo = func():void -> %b2 {
%b2 = block {
%3:ptr<storage, array<i32>, read_write> = access %1, 0u
%4:ptr<storage, i32, read_write> = access %3, 1u
store %4, 42i
ret
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
TEST_F(IR_BlockDecoratedStructsTest, RuntimeArray_InStruct) {
utils::Vector<const type::StructMember*, 4> members;
members.Push(ty.Get<type::StructMember>(mod.symbols.New(), ty.i32(), 0u, 0u, 4u, 4u,
type::StructMemberAttributes{}));
members.Push(ty.Get<type::StructMember>(mod.symbols.New(), ty.runtime_array(ty.i32()), 1u, 4u,
4u, 4u, type::StructMemberAttributes{}));
auto* structure = ty.Get<type::Struct>(mod.symbols.New(), members, 4u, 8u, 8u);
auto* buffer = b.Declare(
ty.pointer(structure, builtin::AddressSpace::kStorage, builtin::Access::kReadWrite));
buffer->SetBindingPoint(0, 0);
b.CreateRootBlockIfNeeded()->Append(buffer);
auto* i32_ptr =
ty.pointer(ty.i32(), builtin::AddressSpace::kStorage, builtin::Access::kReadWrite);
auto* func = b.CreateFunction("foo", ty.void_());
auto* val_ptr = b.Access(i32_ptr, buffer, utils::Vector{b.Constant(0_u)});
auto* load = b.Load(val_ptr);
auto* elem_ptr = b.Access(i32_ptr, buffer, utils::Vector{b.Constant(1_u), b.Constant(3_u)});
func->StartTarget()->Append(val_ptr);
func->StartTarget()->Append(load);
func->StartTarget()->Append(elem_ptr);
func->StartTarget()->Append(b.Store(elem_ptr, load));
func->StartTarget()->Append(b.Return(func));
mod.functions.Push(func);
auto* expect = R"(
tint_symbol_2 = struct @align(4) {
tint_symbol:i32 @offset(0)
tint_symbol_1:array<i32> @offset(4)
}
tint_symbol_3 = struct @align(4), @block {
tint_symbol:i32 @offset(0)
tint_symbol_1:array<i32> @offset(4)
}
# Root block
%b1 = block {
%1:ptr<storage, tint_symbol_3, read_write> = var @binding_point(0, 0)
}
%foo = func():void -> %b2 {
%b2 = block {
%3:ptr<storage, i32, read_write> = access %1, 0u
%4:i32 = load %3
%5:ptr<storage, i32, read_write> = access %1, 1u, 3u
store %5, %4
ret
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
TEST_F(IR_BlockDecoratedStructsTest, StructUsedElsewhere) {
utils::Vector<const type::StructMember*, 4> members;
members.Push(ty.Get<type::StructMember>(mod.symbols.New(), ty.i32(), 0u, 0u, 4u, 4u,
type::StructMemberAttributes{}));
members.Push(ty.Get<type::StructMember>(mod.symbols.New(), ty.i32(), 1u, 4u, 4u, 4u,
type::StructMemberAttributes{}));
auto* structure = ty.Get<type::Struct>(mod.symbols.New(), members, 4u, 8u, 8u);
auto* buffer = b.Declare(
ty.pointer(structure, builtin::AddressSpace::kStorage, builtin::Access::kReadWrite));
buffer->SetBindingPoint(0, 0);
b.CreateRootBlockIfNeeded()->Append(buffer);
auto* private_var = b.Declare(
ty.pointer(structure, builtin::AddressSpace::kPrivate, builtin::Access::kReadWrite));
b.CreateRootBlockIfNeeded()->Append(private_var);
auto* func = b.CreateFunction("foo", ty.void_());
func->StartTarget()->Append(b.Store(buffer, private_var));
func->StartTarget()->Append(b.Return(func));
mod.functions.Push(func);
auto* expect = R"(
tint_symbol_2 = struct @align(4) {
tint_symbol:i32 @offset(0)
tint_symbol_1:i32 @offset(4)
}
tint_symbol_4 = struct @align(4), @block {
tint_symbol_3:tint_symbol_2 @offset(0)
}
# Root block
%b1 = block {
%1:ptr<storage, tint_symbol_4, read_write> = var @binding_point(0, 0)
%2:ptr<private, tint_symbol_2, read_write> = var
}
%foo = func():void -> %b2 {
%b2 = block {
%4:ptr<storage, tint_symbol_2, read_write> = access %1, 0u
store %4, %2
ret
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
TEST_F(IR_BlockDecoratedStructsTest, MultipleBuffers) {
auto* buffer_a = b.Declare(
ty.pointer(ty.i32(), builtin::AddressSpace::kStorage, builtin::Access::kReadWrite));
auto* buffer_b = b.Declare(
ty.pointer(ty.i32(), builtin::AddressSpace::kStorage, builtin::Access::kReadWrite));
auto* buffer_c = b.Declare(
ty.pointer(ty.i32(), builtin::AddressSpace::kStorage, builtin::Access::kReadWrite));
buffer_a->SetBindingPoint(0, 0);
buffer_b->SetBindingPoint(0, 1);
buffer_c->SetBindingPoint(0, 2);
auto* root = b.CreateRootBlockIfNeeded();
root->Append(buffer_a);
root->Append(buffer_b);
root->Append(buffer_c);
auto* func = b.CreateFunction("foo", ty.void_());
auto* load_b = b.Load(buffer_b);
auto* load_c = b.Load(buffer_c);
func->StartTarget()->Append(load_b);
func->StartTarget()->Append(load_c);
func->StartTarget()->Append(b.Store(buffer_a, b.Add(ty.i32(), load_b, load_c)));
func->StartTarget()->Append(b.Return(func));
mod.functions.Push(func);
auto* expect = R"(
tint_symbol_1 = struct @align(4), @block {
tint_symbol:i32 @offset(0)
}
tint_symbol_3 = struct @align(4), @block {
tint_symbol_2:i32 @offset(0)
}
tint_symbol_5 = struct @align(4), @block {
tint_symbol_4:i32 @offset(0)
}
# Root block
%b1 = block {
%1:ptr<storage, tint_symbol_1, read_write> = var @binding_point(0, 0)
%2:ptr<storage, tint_symbol_3, read_write> = var @binding_point(0, 1)
%3:ptr<storage, tint_symbol_5, read_write> = var @binding_point(0, 2)
}
%foo = func():void -> %b2 {
%b2 = block {
%5:ptr<storage, i32, read_write> = access %2, 0u
%6:i32 = load %5
%7:ptr<storage, i32, read_write> = access %3, 0u
%8:i32 = load %7
%9:ptr<storage, i32, read_write> = access %1, 0u
store %9, %10
ret
}
}
)";
Run<BlockDecoratedStructs>();
EXPECT_EQ(expect, str());
}
} // namespace
} // namespace tint::ir::transform