| // Copyright 2022 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/decompose_strided_array.h" |
| |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "src/tint/program_builder.h" |
| #include "src/tint/transform/simplify_pointers.h" |
| #include "src/tint/transform/test_helper.h" |
| #include "src/tint/transform/unshadow.h" |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| namespace tint::transform { |
| namespace { |
| |
| using DecomposeStridedArrayTest = TransformTest; |
| |
| TEST_F(DecomposeStridedArrayTest, ShouldRunEmptyModule) { |
| ProgramBuilder b; |
| EXPECT_FALSE(ShouldRun<DecomposeStridedArray>(Program(std::move(b)))); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ShouldRunNonStridedArray) { |
| // var<private> arr : array<f32, 4u> |
| |
| ProgramBuilder b; |
| b.Global("arr", b.ty.array<f32, 4u>(), ast::StorageClass::kPrivate); |
| EXPECT_FALSE(ShouldRun<DecomposeStridedArray>(Program(std::move(b)))); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ShouldRunDefaultStridedArray) { |
| // var<private> arr : @stride(4) array<f32, 4u> |
| |
| ProgramBuilder b; |
| b.Global("arr", b.ty.array<f32, 4u>(4), ast::StorageClass::kPrivate); |
| EXPECT_TRUE(ShouldRun<DecomposeStridedArray>(Program(std::move(b)))); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ShouldRunExplicitStridedArray) { |
| // var<private> arr : @stride(16) array<f32, 4u> |
| |
| ProgramBuilder b; |
| b.Global("arr", b.ty.array<f32, 4u>(16), ast::StorageClass::kPrivate); |
| EXPECT_TRUE(ShouldRun<DecomposeStridedArray>(Program(std::move(b)))); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, Empty) { |
| auto* src = R"()"; |
| auto* expect = src; |
| |
| auto got = Run<DecomposeStridedArray>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, PrivateDefaultStridedArray) { |
| // var<private> arr : @stride(4) array<f32, 4u> |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : @stride(4) array<f32, 4u> = a; |
| // let b : f32 = arr[1]; |
| // } |
| |
| ProgramBuilder b; |
| b.Global("arr", b.ty.array<f32, 4u>(4), ast::StorageClass::kPrivate); |
| b.Func("f", {}, b.ty.void_(), |
| { |
| b.Decl(b.Let("a", b.ty.array<f32, 4u>(4), b.Expr("arr"))), |
| b.Decl(b.Let("b", b.ty.f32(), b.IndexAccessor("arr", 1_i))), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = R"( |
| var<private> arr : array<f32, 4u>; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : array<f32, 4u> = arr; |
| let b : f32 = arr[1i]; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, PrivateStridedArray) { |
| // var<private> arr : @stride(32) array<f32, 4u> |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : @stride(32) array<f32, 4u> = a; |
| // let b : f32 = arr[1]; |
| // } |
| |
| ProgramBuilder b; |
| b.Global("arr", b.ty.array<f32, 4u>(32), ast::StorageClass::kPrivate); |
| b.Func("f", {}, b.ty.void_(), |
| { |
| b.Decl(b.Let("a", b.ty.array<f32, 4u>(32), b.Expr("arr"))), |
| b.Decl(b.Let("b", b.ty.f32(), b.IndexAccessor("arr", 1_i))), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = R"( |
| struct strided_arr { |
| @size(32) |
| el : f32, |
| } |
| |
| var<private> arr : array<strided_arr, 4u>; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : array<strided_arr, 4u> = arr; |
| let b : f32 = arr[1i].el; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ReadUniformStridedArray) { |
| // struct S { |
| // a : @stride(32) array<f32, 4u>, |
| // }; |
| // @group(0) @binding(0) var<uniform> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : @stride(32) array<f32, 4u> = s.a; |
| // let b : f32 = s.a[1]; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array<f32, 4u>(32))}); |
| b.Global("s", b.ty.Of(S), ast::StorageClass::kUniform, b.GroupAndBinding(0, 0)); |
| b.Func("f", {}, b.ty.void_(), |
| { |
| b.Decl(b.Let("a", b.ty.array<f32, 4u>(32), b.MemberAccessor("s", "a"))), |
| b.Decl(b.Let("b", b.ty.f32(), b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i))), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = R"( |
| struct strided_arr { |
| @size(32) |
| el : f32, |
| } |
| |
| struct S { |
| a : array<strided_arr, 4u>, |
| } |
| |
| @group(0) @binding(0) var<uniform> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : array<strided_arr, 4u> = s.a; |
| let b : f32 = s.a[1i].el; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ReadUniformDefaultStridedArray) { |
| // struct S { |
| // a : @stride(16) array<vec4<f32>, 4u>, |
| // }; |
| // @group(0) @binding(0) var<uniform> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : @stride(16) array<vec4<f32>, 4u> = s.a; |
| // let b : f32 = s.a[1][2]; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array(b.ty.vec4<f32>(), 4_u, 16))}); |
| b.Global("s", b.ty.Of(S), ast::StorageClass::kUniform, b.GroupAndBinding(0, 0)); |
| b.Func( |
| "f", {}, b.ty.void_(), |
| { |
| b.Decl(b.Let("a", b.ty.array(b.ty.vec4<f32>(), 4_u, 16), b.MemberAccessor("s", "a"))), |
| b.Decl(b.Let("b", b.ty.f32(), |
| b.IndexAccessor(b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i), 2_i))), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = |
| R"( |
| struct S { |
| a : array<vec4<f32>, 4u>, |
| } |
| |
| @group(0) @binding(0) var<uniform> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : array<vec4<f32>, 4u> = s.a; |
| let b : f32 = s.a[1i][2i]; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ReadStorageStridedArray) { |
| // struct S { |
| // a : @stride(32) array<f32, 4u>, |
| // }; |
| // @group(0) @binding(0) var<storage> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : @stride(32) array<f32, 4u> = s.a; |
| // let b : f32 = s.a[1]; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array<f32, 4u>(32))}); |
| b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage, b.GroupAndBinding(0, 0)); |
| b.Func("f", {}, b.ty.void_(), |
| { |
| b.Decl(b.Let("a", b.ty.array<f32, 4u>(32), b.MemberAccessor("s", "a"))), |
| b.Decl(b.Let("b", b.ty.f32(), b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i))), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = R"( |
| struct strided_arr { |
| @size(32) |
| el : f32, |
| } |
| |
| struct S { |
| a : array<strided_arr, 4u>, |
| } |
| |
| @group(0) @binding(0) var<storage> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : array<strided_arr, 4u> = s.a; |
| let b : f32 = s.a[1i].el; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ReadStorageDefaultStridedArray) { |
| // struct S { |
| // a : @stride(4) array<f32, 4u>, |
| // }; |
| // @group(0) @binding(0) var<storage> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : @stride(4) array<f32, 4u> = s.a; |
| // let b : f32 = s.a[1]; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array<f32, 4u>(4))}); |
| b.Global("s", b.ty.Of(S), ast::StorageClass::kStorage, b.GroupAndBinding(0, 0)); |
| b.Func("f", {}, b.ty.void_(), |
| { |
| b.Decl(b.Let("a", b.ty.array<f32, 4u>(4), b.MemberAccessor("s", "a"))), |
| b.Decl(b.Let("b", b.ty.f32(), b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i))), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = R"( |
| struct S { |
| a : array<f32, 4u>, |
| } |
| |
| @group(0) @binding(0) var<storage> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : array<f32, 4u> = s.a; |
| let b : f32 = s.a[1i]; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, WriteStorageStridedArray) { |
| // struct S { |
| // a : @stride(32) array<f32, 4u>, |
| // }; |
| // @group(0) @binding(0) var<storage, read_write> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // s.a = @stride(32) array<f32, 4u>(); |
| // s.a = @stride(32) array<f32, 4u>(1.0, 2.0, 3.0, 4.0); |
| // s.a[1i] = 5.0; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array<f32, 4u>(32))}); |
| 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", "a"), b.Construct(b.ty.array<f32, 4u>(32))), |
| b.Assign(b.MemberAccessor("s", "a"), |
| b.Construct(b.ty.array<f32, 4u>(32), 1_f, 2_f, 3_f, 4_f)), |
| b.Assign(b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i), 5_f), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = |
| R"( |
| struct strided_arr { |
| @size(32) |
| el : f32, |
| } |
| |
| struct S { |
| a : array<strided_arr, 4u>, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| s.a = array<strided_arr, 4u>(); |
| s.a = array<strided_arr, 4u>(strided_arr(1.0f), strided_arr(2.0f), strided_arr(3.0f), strided_arr(4.0f)); |
| s.a[1i].el = 5.0f; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, WriteStorageDefaultStridedArray) { |
| // struct S { |
| // a : @stride(4) array<f32, 4u>, |
| // }; |
| // @group(0) @binding(0) var<storage, read_write> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // s.a = @stride(4) array<f32, 4u>(); |
| // s.a = @stride(4) array<f32, 4u>(1.0, 2.0, 3.0, 4.0); |
| // s.a[1] = 5.0; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array<f32, 4u>(4))}); |
| 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", "a"), b.Construct(b.ty.array<f32, 4u>(4))), |
| b.Assign(b.MemberAccessor("s", "a"), |
| b.Construct(b.ty.array<f32, 4u>(4), 1_f, 2_f, 3_f, 4_f)), |
| b.Assign(b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i), 5_f), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = |
| R"( |
| struct S { |
| a : array<f32, 4u>, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| s.a = array<f32, 4u>(); |
| s.a = array<f32, 4u>(1.0f, 2.0f, 3.0f, 4.0f); |
| s.a[1i] = 5.0f; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, ReadWriteViaPointerLets) { |
| // struct S { |
| // a : @stride(32) array<f32, 4u>, |
| // }; |
| // @group(0) @binding(0) var<storage, read_write> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a = &s.a; |
| // let b = &*&*(a); |
| // let c = *b; |
| // let d = (*b)[1]; |
| // (*b) = @stride(32) array<f32, 4u>(1.0, 2.0, 3.0, 4.0); |
| // (*b)[1] = 5.0; |
| // } |
| ProgramBuilder b; |
| auto* S = b.Structure("S", {b.Member("a", b.ty.array<f32, 4u>(32))}); |
| 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.Let("a", nullptr, b.AddressOf(b.MemberAccessor("s", "a")))), |
| b.Decl(b.Let("b", nullptr, b.AddressOf(b.Deref(b.AddressOf(b.Deref("a")))))), |
| b.Decl(b.Let("c", nullptr, b.Deref("b"))), |
| b.Decl(b.Let("d", nullptr, b.IndexAccessor(b.Deref("b"), 1_i))), |
| b.Assign(b.Deref("b"), b.Construct(b.ty.array<f32, 4u>(32), 1_f, 2_f, 3_f, 4_f)), |
| b.Assign(b.IndexAccessor(b.Deref("b"), 1_i), 5_f), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = |
| R"( |
| struct strided_arr { |
| @size(32) |
| el : f32, |
| } |
| |
| struct S { |
| a : array<strided_arr, 4u>, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let c = s.a; |
| let d = s.a[1i].el; |
| s.a = array<strided_arr, 4u>(strided_arr(1.0f), strided_arr(2.0f), strided_arr(3.0f), strided_arr(4.0f)); |
| s.a[1i].el = 5.0f; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, PrivateAliasedStridedArray) { |
| // type ARR = @stride(32) array<f32, 4u>; |
| // struct S { |
| // a : ARR, |
| // }; |
| // @group(0) @binding(0) var<storage, read_write> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : ARR = s.a; |
| // let b : f32 = s.a[1]; |
| // s.a = ARR(); |
| // s.a = ARR(1.0, 2.0, 3.0, 4.0); |
| // s.a[1] = 5.0; |
| // } |
| ProgramBuilder b; |
| b.Alias("ARR", b.ty.array<f32, 4u>(32)); |
| auto* S = b.Structure("S", {b.Member("a", b.ty.type_name("ARR"))}); |
| 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.Let("a", b.ty.type_name("ARR"), b.MemberAccessor("s", "a"))), |
| b.Decl(b.Let("b", b.ty.f32(), b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i))), |
| b.Assign(b.MemberAccessor("s", "a"), b.Construct(b.ty.type_name("ARR"))), |
| b.Assign(b.MemberAccessor("s", "a"), |
| b.Construct(b.ty.type_name("ARR"), 1_f, 2_f, 3_f, 4_f)), |
| b.Assign(b.IndexAccessor(b.MemberAccessor("s", "a"), 1_i), 5_f), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = R"( |
| struct strided_arr { |
| @size(32) |
| el : f32, |
| } |
| |
| type ARR = array<strided_arr, 4u>; |
| |
| struct S { |
| a : ARR, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : ARR = s.a; |
| let b : f32 = s.a[1i].el; |
| s.a = ARR(); |
| s.a = ARR(strided_arr(1.0f), strided_arr(2.0f), strided_arr(3.0f), strided_arr(4.0f)); |
| s.a[1i].el = 5.0f; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(DecomposeStridedArrayTest, PrivateNestedStridedArray) { |
| // type ARR_A = @stride(8) array<f32, 2u>; |
| // type ARR_B = @stride(128) array<@stride(16) array<ARR_A, 3u>, 4u>; |
| // struct S { |
| // a : ARR_B, |
| // }; |
| // @group(0) @binding(0) var<storage, read_write> s : S; |
| // |
| // @stage(compute) @workgroup_size(1) |
| // fn f() { |
| // let a : ARR_B = s.a; |
| // let b : array<@stride(8) array<f32, 2u>, 3u> = s.a[3]; |
| // let c = s.a[3][2]; |
| // let d = s.a[3][2][1]; |
| // s.a = ARR_B(); |
| // s.a[3][2][1] = 5.0; |
| // } |
| |
| ProgramBuilder b; |
| b.Alias("ARR_A", b.ty.array<f32, 2>(8)); |
| b.Alias("ARR_B", |
| b.ty.array( // |
| b.ty.array(b.ty.type_name("ARR_A"), 3_u, 16), // |
| 4_u, 128)); |
| auto* S = b.Structure("S", {b.Member("a", b.ty.type_name("ARR_B"))}); |
| 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.Let("a", b.ty.type_name("ARR_B"), b.MemberAccessor("s", "a"))), |
| b.Decl(b.Let("b", b.ty.array(b.ty.type_name("ARR_A"), 3_u, 16), |
| b.IndexAccessor( // |
| b.MemberAccessor("s", "a"), // |
| 3_i))), |
| b.Decl(b.Let("c", b.ty.type_name("ARR_A"), |
| b.IndexAccessor( // |
| b.IndexAccessor( // |
| b.MemberAccessor("s", "a"), // |
| 3_i), |
| 2_i))), |
| b.Decl(b.Let("d", b.ty.f32(), |
| b.IndexAccessor( // |
| b.IndexAccessor( // |
| b.IndexAccessor( // |
| b.MemberAccessor("s", "a"), // |
| 3_i), |
| 2_i), |
| 1_i))), |
| b.Assign(b.MemberAccessor("s", "a"), b.Construct(b.ty.type_name("ARR_B"))), |
| b.Assign(b.IndexAccessor( // |
| b.IndexAccessor( // |
| b.IndexAccessor( // |
| b.MemberAccessor("s", "a"), // |
| 3_i), |
| 2_i), |
| 1_i), |
| 5_f), |
| }, |
| { |
| b.Stage(ast::PipelineStage::kCompute), |
| b.WorkgroupSize(1_i), |
| }); |
| |
| auto* expect = |
| R"( |
| struct strided_arr { |
| @size(8) |
| el : f32, |
| } |
| |
| type ARR_A = array<strided_arr, 2u>; |
| |
| struct strided_arr_1 { |
| @size(128) |
| el : array<ARR_A, 3u>, |
| } |
| |
| type ARR_B = array<strided_arr_1, 4u>; |
| |
| struct S { |
| a : ARR_B, |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> s : S; |
| |
| @stage(compute) @workgroup_size(1i) |
| fn f() { |
| let a : ARR_B = s.a; |
| let b : array<ARR_A, 3u> = s.a[3i].el; |
| let c : ARR_A = s.a[3i].el[2i]; |
| let d : f32 = s.a[3i].el[2i][1i].el; |
| s.a = ARR_B(); |
| s.a[3i].el[2i][1i].el = 5.0f; |
| } |
| )"; |
| |
| auto got = Run<Unshadow, SimplifyPointers, DecomposeStridedArray>(Program(std::move(b))); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| } // namespace |
| } // namespace tint::transform |
