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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/decompose_strided_matrix.h"
#include <memory>
#include <utility>
#include <vector>
#include "src/ast/disable_validation_decoration.h"
#include "src/program_builder.h"
#include "src/transform/simplify_pointers.h"
#include "src/transform/test_helper.h"
#include "src/transform/unshadow.h"
namespace tint {
namespace transform {
namespace {
using DecomposeStridedMatrixTest = TransformTest;
using f32 = ProgramBuilder::f32;
TEST_F(DecomposeStridedMatrixTest, Empty) {
auto* src = R"()";
auto* expect = src;
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, MissingDependencySimplify) {
auto* src = R"()";
auto* expect =
R"(error: tint::transform::DecomposeStridedMatrix depends on tint::transform::SimplifyPointers but the dependency was not run)";
auto got = Run<DecomposeStridedMatrix>(src);
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadUniformMatrix) {
// [[block]]
// struct S {
// [[offset(16), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<uniform> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let x : mat2x2<f32> = s.m;
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(16),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kUniform,
b.GroupAndBinding(0, 0));
b.Func(
"f", {}, b.ty.void_(),
{
b.Decl(b.Const("x", b.ty.mat2x2<f32>(), b.MemberAccessor("s", "m"))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(16)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<uniform> s : S;
fn arr_to_mat2x2_stride_32(arr : [[stride(32)]] array<vec2<f32>, 2u>) -> mat2x2<f32> {
return mat2x2<f32>(arr[0u], arr[1u]);
}
[[stage(compute), workgroup_size(1)]]
fn f() {
let x : mat2x2<f32> = arr_to_mat2x2_stride_32(s.m);
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadUniformColumn) {
// [[block]]
// struct S {
// [[offset(16), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<uniform> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let x : vec2<f32> = s.m[1];
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(16),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kUniform,
b.GroupAndBinding(0, 0));
b.Func("f", {}, b.ty.void_(),
{
b.Decl(b.Const("x", b.ty.vec2<f32>(),
b.IndexAccessor(b.MemberAccessor("s", "m"), 1))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(16)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<uniform> s : S;
[[stage(compute), workgroup_size(1)]]
fn f() {
let x : vec2<f32> = s.m[1];
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadUniformMatrix_DefaultStride) {
// [[block]]
// struct S {
// [[offset(16), stride(8)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<uniform> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let x : mat2x2<f32> = s.m;
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(16),
b.create<ast::StrideDecoration>(8),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kUniform,
b.GroupAndBinding(0, 0));
b.Func(
"f", {}, b.ty.void_(),
{
b.Decl(b.Const("x", b.ty.mat2x2<f32>(), b.MemberAccessor("s", "m"))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(16)]]
padding : u32;
[[stride(8), internal(disable_validation__ignore_stride)]]
m : mat2x2<f32>;
};
[[group(0), binding(0)]] var<uniform> s : S;
[[stage(compute), workgroup_size(1)]]
fn f() {
let x : mat2x2<f32> = s.m;
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadStorageMatrix) {
// [[block]]
// struct S {
// [[offset(8), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<storage, read_write> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let x : mat2x2<f32> = s.m;
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(8),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage,
ast::Access::kReadWrite, b.GroupAndBinding(0, 0));
b.Func(
"f", {}, b.ty.void_(),
{
b.Decl(b.Const("x", b.ty.mat2x2<f32>(), b.MemberAccessor("s", "m"))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(8)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<storage, read_write> s : S;
fn arr_to_mat2x2_stride_32(arr : [[stride(32)]] array<vec2<f32>, 2u>) -> mat2x2<f32> {
return mat2x2<f32>(arr[0u], arr[1u]);
}
[[stage(compute), workgroup_size(1)]]
fn f() {
let x : mat2x2<f32> = arr_to_mat2x2_stride_32(s.m);
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadStorageColumn) {
// [[block]]
// struct S {
// [[offset(16), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<storage, read_write> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let x : vec2<f32> = s.m[1];
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(16),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage,
ast::Access::kReadWrite, b.GroupAndBinding(0, 0));
b.Func("f", {}, b.ty.void_(),
{
b.Decl(b.Const("x", b.ty.vec2<f32>(),
b.IndexAccessor(b.MemberAccessor("s", "m"), 1))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(16)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<storage, read_write> s : S;
[[stage(compute), workgroup_size(1)]]
fn f() {
let x : vec2<f32> = s.m[1];
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, WriteStorageMatrix) {
// [[block]]
// struct S {
// [[offset(8), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<storage, read_write> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// s.m = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(8),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage,
ast::Access::kReadWrite, b.GroupAndBinding(0, 0));
b.Func("f", {}, b.ty.void_(),
{
b.Assign(b.MemberAccessor("s", "m"),
b.mat2x2<f32>(b.vec2<f32>(1.0f, 2.0f),
b.vec2<f32>(3.0f, 4.0f))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(8)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<storage, read_write> s : S;
fn mat2x2_stride_32_to_arr(mat : mat2x2<f32>) -> [[stride(32)]] array<vec2<f32>, 2u> {
return [[stride(32)]] array<vec2<f32>, 2u>(mat[0u], mat[1u]);
}
[[stage(compute), workgroup_size(1)]]
fn f() {
s.m = mat2x2_stride_32_to_arr(mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0)));
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, WriteStorageColumn) {
// [[block]]
// struct S {
// [[offset(8), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<storage, read_write> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// s.m[1] = vec2<f32>(1.0, 2.0);
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(8),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage,
ast::Access::kReadWrite, b.GroupAndBinding(0, 0));
b.Func("f", {}, b.ty.void_(),
{
b.Assign(b.IndexAccessor(b.MemberAccessor("s", "m"), 1),
b.vec2<f32>(1.0f, 2.0f)),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(8)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<storage, read_write> s : S;
[[stage(compute), workgroup_size(1)]]
fn f() {
s.m[1] = vec2<f32>(1.0, 2.0);
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadWriteViaPointerLets) {
// [[block]]
// struct S {
// [[offset(8), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// [[group(0), binding(0)]] var<storage, read_write> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let a = &s.m;
// let b = &*&*(a);
// let x = *b;
// let y = (*b)[1];
// let z = x[1];
// (*b) = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
// (*b)[1] = vec2<f32>(5.0, 6.0);
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(8),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
},
{
b.StructBlock(),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage,
ast::Access::kReadWrite, b.GroupAndBinding(0, 0));
b.Func(
"f", {}, b.ty.void_(),
{
b.Decl(
b.Const("a", nullptr, b.AddressOf(b.MemberAccessor("s", "m")))),
b.Decl(b.Const("b", nullptr,
b.AddressOf(b.Deref(b.AddressOf(b.Deref("a")))))),
b.Decl(b.Const("x", nullptr, b.Deref("b"))),
b.Decl(b.Const("y", nullptr, b.IndexAccessor(b.Deref("b"), 1))),
b.Decl(b.Const("z", nullptr, b.IndexAccessor("x", 1))),
b.Assign(b.Deref("b"), b.mat2x2<f32>(b.vec2<f32>(1.0f, 2.0f),
b.vec2<f32>(3.0f, 4.0f))),
b.Assign(b.IndexAccessor(b.Deref("b"), 1), b.vec2<f32>(5.0f, 6.0f)),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
[[block]]
struct S {
[[size(8)]]
padding : u32;
m : [[stride(32)]] array<vec2<f32>, 2u>;
};
[[group(0), binding(0)]] var<storage, read_write> s : S;
fn arr_to_mat2x2_stride_32(arr : [[stride(32)]] array<vec2<f32>, 2u>) -> mat2x2<f32> {
return mat2x2<f32>(arr[0u], arr[1u]);
}
fn mat2x2_stride_32_to_arr(mat : mat2x2<f32>) -> [[stride(32)]] array<vec2<f32>, 2u> {
return [[stride(32)]] array<vec2<f32>, 2u>(mat[0u], mat[1u]);
}
[[stage(compute), workgroup_size(1)]]
fn f() {
let x = arr_to_mat2x2_stride_32(s.m);
let y = s.m[1];
let z = x[1];
s.m = mat2x2_stride_32_to_arr(mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0)));
s.m[1] = vec2<f32>(5.0, 6.0);
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, ReadPrivateMatrix) {
// struct S {
// [[offset(8), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// var<private> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// let x : mat2x2<f32> = s.m;
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(8),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kPrivate);
b.Func(
"f", {}, b.ty.void_(),
{
b.Decl(b.Const("x", b.ty.mat2x2<f32>(), b.MemberAccessor("s", "m"))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
struct S {
[[size(8)]]
padding : u32;
[[stride(32), internal(disable_validation__ignore_stride)]]
m : mat2x2<f32>;
};
var<private> s : S;
[[stage(compute), workgroup_size(1)]]
fn f() {
let x : mat2x2<f32> = s.m;
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
TEST_F(DecomposeStridedMatrixTest, WritePrivateMatrix) {
// struct S {
// [[offset(8), stride(32)]]
// [[internal(ignore_stride_decoration)]]
// m : mat2x2<f32>;
// };
// var<private> s : S;
//
// [[stage(compute), workgroup_size(1)]]
// fn f() {
// s.m = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
// }
ProgramBuilder b;
auto* S = b.Structure(
"S",
{
b.Member(
"m", b.ty.mat2x2<f32>(),
{
b.create<ast::StructMemberOffsetDecoration>(8),
b.create<ast::StrideDecoration>(32),
b.Disable(ast::DisabledValidation::kIgnoreStrideDecoration),
}),
});
b.Global("s", b.ty.Of(S), ast::StorageClass::kPrivate);
b.Func("f", {}, b.ty.void_(),
{
b.Assign(b.MemberAccessor("s", "m"),
b.mat2x2<f32>(b.vec2<f32>(1.0f, 2.0f),
b.vec2<f32>(3.0f, 4.0f))),
},
{
b.Stage(ast::PipelineStage::kCompute),
b.WorkgroupSize(1),
});
auto* expect = R"(
struct S {
[[size(8)]]
padding : u32;
[[stride(32), internal(disable_validation__ignore_stride)]]
m : mat2x2<f32>;
};
var<private> s : S;
[[stage(compute), workgroup_size(1)]]
fn f() {
s.m = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
}
)";
auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedMatrix>(
Program(std::move(b)));
EXPECT_EQ(expect, str(got));
}
} // namespace
} // namespace transform
} // namespace tint