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// Copyright 2021 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/wgsl/resolver/resolver.h"
#include "gmock/gmock.h"
#include "src/tint/lang/wgsl/resolver/resolver_helper_test.h"
namespace tint::resolver {
namespace {
using namespace tint::core::fluent_types; // NOLINT
using namespace tint::core::number_suffixes; // NOLINT
using ResolverAddressSpaceLayoutValidationTest = ResolverTest;
// Detect unaligned member for storage buffers
TEST_F(ResolverAddressSpaceLayoutValidationTest, StorageBuffer_UnalignedMember) {
// struct S {
// @size(5) a : f32;
// @align(1) b : f32;
// };
// @group(0) @binding(0)
// var<storage> a : S;
Structure(Ident(Source{{12, 34}}, "S"),
Vector{
Member("a", ty.f32(), Vector{MemberSize(5_a)}),
Member(Source{{34, 56}}, "b", ty.f32(), Vector{MemberAlign(1_i)}),
});
GlobalVar(Source{{78, 90}}, "a", ty("S"), core::AddressSpace::kStorage, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(34:56 error: the offset of a struct member of type 'f32' in address space 'storage' must be a multiple of 4 bytes, but 'b' is currently at offset 5. Consider setting '@align(4)' on this member
12:34 note: see layout of struct:
/* align(4) size(12) */ struct S {
/* offset(0) align(4) size( 5) */ a : f32,
/* offset(5) align(1) size( 4) */ b : f32,
/* offset(9) align(1) size( 3) */ // -- implicit struct size padding --
/* */ };
78:90 note: 'S' used in address space 'storage' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, StorageBuffer_UnalignedMember_SuggestedFix) {
// struct S {
// @size(5) a : f32;
// @align(4) b : f32;
// };
// @group(0) @binding(0)
// var<storage> a : S;
Structure("S", Vector{
Member("a", ty.f32(), Vector{MemberSize(5_a)}),
Member("b", ty.f32(), Vector{MemberAlign(4_i)}),
});
GlobalVar("a", ty("S"), core::AddressSpace::kStorage, Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Detect unaligned struct member for uniform buffers
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_UnalignedMember_Struct) {
// struct Inner {
// scalar : i32;
// };
//
// struct Outer {
// scalar : f32;
// inner : Inner;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Structure(Ident(Source{{12, 34}}, "Inner"), Vector{
Member("scalar", ty.i32()),
});
Structure(Ident(Source{{34, 56}}, "Outer"), Vector{
Member("scalar", ty.f32()),
Member(Source{{56, 78}}, "inner", ty("Inner")),
});
GlobalVar(Source{{78, 90}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: the offset of a struct member of type 'Inner' in address space 'uniform' must be a multiple of 16 bytes, but 'inner' is currently at offset 4. Consider setting '@align(16)' on this member
34:56 note: see layout of struct:
/* align(4) size(8) */ struct Outer {
/* offset(0) align(4) size(4) */ scalar : f32,
/* offset(4) align(4) size(4) */ inner : Inner,
/* */ };
12:34 note: and layout of struct member:
/* align(4) size(4) */ struct Inner {
/* offset(0) align(4) size(4) */ scalar : i32,
/* */ };
78:90 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest,
UniformBuffer_UnalignedMember_Struct_SuggestedFix) {
// struct Inner {
// scalar : i32;
// };
//
// struct Outer {
// scalar : f32;
// @align(16) inner : Inner;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Structure("Inner", Vector{
Member("scalar", ty.i32()),
});
Structure("Outer", Vector{
Member("scalar", ty.f32()),
Member("inner", ty("Inner"), Vector{MemberAlign(16_i)}),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Detect unaligned array member for uniform buffers
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_UnalignedMember_Array) {
// type Inner = @stride(16) array<f32, 10u>;
//
// struct Outer {
// scalar : f32;
// inner : Inner;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Alias("Inner", ty.array<f32, 10>(Vector{Stride(16)}));
Structure(Ident(Source{{12, 34}}, "Outer"), Vector{
Member("scalar", ty.f32()),
Member(Source{{56, 78}}, "inner", ty("Inner")),
});
GlobalVar(Source{{78, 90}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(56:78 error: the offset of a struct member of type '@stride(16) array<f32, 10>' in address space 'uniform' must be a multiple of 16 bytes, but 'inner' is currently at offset 4. Consider setting '@align(16)' on this member
12:34 note: see layout of struct:
/* align(4) size(164) */ struct Outer {
/* offset( 0) align(4) size( 4) */ scalar : f32,
/* offset( 4) align(4) size(160) */ inner : @stride(16) array<f32, 10>,
/* */ };
78:90 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_UnalignedMember_Array_SuggestedFix) {
// type Inner = @stride(16) array<f32, 10u>;
//
// struct Outer {
// scalar : f32;
// @align(16) inner : Inner;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Alias("Inner", ty.array<f32, 10>(Vector{Stride(16)}));
Structure("Outer", Vector{
Member("scalar", ty.f32()),
Member("inner", ty("Inner"), Vector{MemberAlign(16_i)}),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Detect uniform buffers with byte offset between 2 members that is not a
// multiple of 16 bytes
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_MembersOffsetNotMultipleOf16) {
// struct Inner {
// @align(1) @size(5) scalar : i32;
// };
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Structure(Ident(Source{{12, 34}}, "Inner"),
Vector{
Member("scalar", ty.i32(), Vector{MemberAlign(1_i), MemberSize(5_a)}),
});
Structure(Source{{34, 56}}, "Outer",
Vector{
Member(Source{{56, 78}}, "inner", ty("Inner")),
Member(Source{{78, 90}}, "scalar", ty.i32()),
});
GlobalVar(Source{{22, 24}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(78:90 error: 'uniform' storage requires that the number of bytes between the start of the previous member of type struct and the current member be a multiple of 16 bytes, but there are currently 8 bytes between 'inner' and 'scalar'. Consider setting '@align(16)' on this member
note: see layout of struct:
/* align(4) size(12) */ struct Outer {
/* offset( 0) align(1) size( 5) */ inner : Inner,
/* offset( 5) align(1) size( 3) */ // -- implicit field alignment padding --
/* offset( 8) align(4) size( 4) */ scalar : i32,
/* */ };
12:34 note: and layout of previous member struct:
/* align(1) size(5) */ struct Inner {
/* offset(0) align(1) size(5) */ scalar : i32,
/* */ };
22:24 note: 'Outer' used in address space 'uniform' here)");
}
// See https://crbug.com/tint/1344
TEST_F(ResolverAddressSpaceLayoutValidationTest,
UniformBuffer_MembersOffsetNotMultipleOf16_InnerMoreMembersThanOuter) {
// struct Inner {
// a : i32;
// b : i32;
// c : i32;
// @align(1) @size(5) scalar : i32;
// };
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Structure(Ident(Source{{12, 34}}, "Inner"),
Vector{
Member("a", ty.i32()),
Member("b", ty.i32()),
Member("c", ty.i32()),
Member("scalar", ty.i32(), Vector{MemberAlign(1_i), MemberSize(5_a)}),
});
Structure(Source{{34, 56}}, "Outer",
Vector{
Member(Source{{56, 78}}, "inner", ty("Inner")),
Member(Source{{78, 90}}, "scalar", ty.i32()),
});
GlobalVar(Source{{22, 24}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(78:90 error: 'uniform' storage requires that the number of bytes between the start of the previous member of type struct and the current member be a multiple of 16 bytes, but there are currently 20 bytes between 'inner' and 'scalar'. Consider setting '@align(16)' on this member
note: see layout of struct:
/* align(4) size(24) */ struct Outer {
/* offset( 0) align(4) size(20) */ inner : Inner,
/* offset(20) align(4) size( 4) */ scalar : i32,
/* */ };
12:34 note: and layout of previous member struct:
/* align(4) size(20) */ struct Inner {
/* offset( 0) align(4) size( 4) */ a : i32,
/* offset( 4) align(4) size( 4) */ b : i32,
/* offset( 8) align(4) size( 4) */ c : i32,
/* offset(12) align(1) size( 5) */ scalar : i32,
/* offset(17) align(1) size( 3) */ // -- implicit struct size padding --
/* */ };
22:24 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest,
UniformBuffer_MembersOffsetNotMultipleOf16_SuggestedFix) {
// struct Inner {
// @align(1) @size(5) scalar : i32;
// };
//
// struct Outer {
// @align(16) inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Structure("Inner", Vector{
Member("scalar", ty.i32(), Vector{MemberAlign(1_i), MemberSize(5_a)}),
});
Structure("Outer", Vector{
Member("inner", ty("Inner")),
Member("scalar", ty.i32(), Vector{MemberAlign(16_i)}),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Make sure that this doesn't fail validation because vec3's align is 16, but
// size is 12. 's' should be at offset 12, which is okay here.
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_Vec3MemberOffset_NoFail) {
// struct ScalarPackedAtEndOfVec3 {
// v : vec3<f32>;
// s : f32;
// };
// @group(0) @binding(0)
// var<uniform> a : ScalarPackedAtEndOfVec3;
Structure("ScalarPackedAtEndOfVec3", Vector{
Member("v", ty.vec3(ty.f32())),
Member("s", ty.f32()),
});
GlobalVar("a", ty("ScalarPackedAtEndOfVec3"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Make sure that this doesn't fail validation because vec3's align is 8, but
// size is 6. 's' should be at offset 6, which is okay here.
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_Vec3F16MemberOffset_NoFail) {
// struct ScalarPackedAtEndOfVec3 {
// v : vec3<f16>;
// s : f16;
// };
// @group(0) @binding(0)
// var<uniform> a : ScalarPackedAtEndOfVec3;
Enable(wgsl::Extension::kF16);
Structure("ScalarPackedAtEndOfVec3", Vector{
Member("v", ty.vec3(ty.f16())),
Member("s", ty.f16()),
});
GlobalVar("a", ty("ScalarPackedAtEndOfVec3"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Detect array stride must be a multiple of 16 bytes for uniform buffers
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_InvalidArrayStride_Scalar) {
// type Inner = array<f32, 10u>;
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Alias("Inner", ty.array<f32, 10>());
Structure(Ident(Source{{12, 34}}, "Outer"), Vector{
Member("inner", ty(Source{{34, 56}}, "Inner")),
Member("scalar", ty.i32()),
});
GlobalVar(Source{{78, 90}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(34:56 error: 'uniform' storage requires that array elements are aligned to 16 bytes, but array element of type 'f32' has a stride of 4 bytes. Consider using a vector or struct as the element type instead.
12:34 note: see layout of struct:
/* align(4) size(44) */ struct Outer {
/* offset( 0) align(4) size(40) */ inner : array<f32, 10>,
/* offset(40) align(4) size( 4) */ scalar : i32,
/* */ };
78:90 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_InvalidArrayStride_Vector) {
// type Inner = array<vec2<f32>, 10u>;
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Alias("Inner", ty.array<vec2<f32>, 10>());
Structure(Ident(Source{{12, 34}}, "Outer"), Vector{
Member("inner", ty(Source{{34, 56}}, "Inner")),
Member("scalar", ty.i32()),
});
GlobalVar(Source{{78, 90}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(34:56 error: 'uniform' storage requires that array elements are aligned to 16 bytes, but array element of type 'vec2<f32>' has a stride of 8 bytes. Consider using a vec4 instead.
12:34 note: see layout of struct:
/* align(8) size(88) */ struct Outer {
/* offset( 0) align(8) size(80) */ inner : array<vec2<f32>, 10>,
/* offset(80) align(4) size( 4) */ scalar : i32,
/* offset(84) align(1) size( 4) */ // -- implicit struct size padding --
/* */ };
78:90 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_InvalidArrayStride_Struct) {
// struct ArrayElem {
// a : f32;
// b : i32;
// }
// type Inner = array<ArrayElem, 10u>;
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
auto* array_elem = Structure("ArrayElem", Vector{
Member("a", ty.f32()),
Member("b", ty.i32()),
});
Alias("Inner", ty.array(ty.Of(array_elem), 10_u));
Structure(Ident(Source{{12, 34}}, "Outer"), Vector{
Member("inner", ty(Source{{34, 56}}, "Inner")),
Member("scalar", ty.i32()),
});
GlobalVar(Source{{78, 90}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(34:56 error: 'uniform' storage requires that array elements are aligned to 16 bytes, but array element of type 'ArrayElem' has a stride of 8 bytes. Consider using the '@size' attribute on the last struct member.
12:34 note: see layout of struct:
/* align(4) size(84) */ struct Outer {
/* offset( 0) align(4) size(80) */ inner : array<ArrayElem, 10>,
/* offset(80) align(4) size( 4) */ scalar : i32,
/* */ };
78:90 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_InvalidArrayStride_TopLevelArray) {
// @group(0) @binding(0)
// var<uniform> a : array<f32, 4u>;
GlobalVar("a", ty.array(ty.f32(), 4_u), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(error: 'uniform' storage requires that array elements are aligned to 16 bytes, but array element of type 'f32' has a stride of 4 bytes. Consider using a vector or struct as the element type instead.)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_InvalidArrayStride_NestedArray) {
// struct Outer {
// inner : array<array<f32, 4u>, 4u>
// };
//
// @group(0) @binding(0)
// var<uniform> a : array<Outer, 4u>;
Structure(Ident(Source{{12, 34}}, "Outer"),
Vector{
Member("inner", ty.array(Source{{34, 56}}, ty.array<f32, 4>(), 4_u)),
});
GlobalVar(Source{{78, 90}}, "a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a),
Binding(0_a));
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(34:56 error: 'uniform' storage requires that array elements are aligned to 16 bytes, but array element of type 'f32' has a stride of 4 bytes. Consider using a vector or struct as the element type instead.
12:34 note: see layout of struct:
/* align(4) size(64) */ struct Outer {
/* offset( 0) align(4) size(64) */ inner : array<array<f32, 4>, 4>,
/* */ };
78:90 note: 'Outer' used in address space 'uniform' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, UniformBuffer_InvalidArrayStride_SuggestedFix) {
// type Inner = @stride(16) array<f32, 10u>;
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Alias("Inner", ty.array<f32, 10>(Vector{Stride(16)}));
Structure("Outer", Vector{
Member("inner", ty("Inner")),
Member("scalar", ty.i32()),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
// Detect unaligned member for push constants buffers
TEST_F(ResolverAddressSpaceLayoutValidationTest, PushConstant_UnalignedMember) {
// enable chromium_experimental_push_constant;
// struct S {
// @size(5) a : f32;
// @align(1) b : f32;
// };
// var<push_constant> a : S;
Enable(wgsl::Extension::kChromiumExperimentalPushConstant);
Structure(Ident(Source{{12, 34}}, "S"),
Vector{Member("a", ty.f32(), Vector{MemberSize(5_a)}),
Member(Source{{34, 56}}, "b", ty.f32(), Vector{MemberAlign(1_i)})});
GlobalVar(Source{{78, 90}}, "a", ty("S"), core::AddressSpace::kPushConstant);
ASSERT_FALSE(r()->Resolve());
EXPECT_EQ(
r()->error(),
R"(34:56 error: the offset of a struct member of type 'f32' in address space 'push_constant' must be a multiple of 4 bytes, but 'b' is currently at offset 5. Consider setting '@align(4)' on this member
12:34 note: see layout of struct:
/* align(4) size(12) */ struct S {
/* offset(0) align(4) size( 5) */ a : f32,
/* offset(5) align(1) size( 4) */ b : f32,
/* offset(9) align(1) size( 3) */ // -- implicit struct size padding --
/* */ };
78:90 note: 'S' used in address space 'push_constant' here)");
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, PushConstant_Aligned) {
// enable chromium_experimental_push_constant;
// struct S {
// @size(5) a : f32;
// @align(4) b : f32;
// };
// var<push_constant> a : S;
Enable(wgsl::Extension::kChromiumExperimentalPushConstant);
Structure("S", Vector{Member("a", ty.f32(), Vector{MemberSize(5_a)}),
Member("b", ty.f32(), Vector{MemberAlign(4_i)})});
GlobalVar("a", ty("S"), core::AddressSpace::kPushConstant);
ASSERT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, RelaxedUniformLayout_StructMemberOffset_Struct) {
// enable chromium_internal_relaxed_uniform_layout;
//
// struct Inner {
// scalar : i32;
// };
//
// struct Outer {
// scalar : f32;
// inner : Inner;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Enable(wgsl::Extension::kChromiumInternalRelaxedUniformLayout);
Structure("Inner", Vector{
Member("scalar", ty.i32()),
});
Structure("Outer", Vector{
Member("scalar", ty.f32()),
Member("inner", ty("Inner")),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, RelaxedUniformLayout_StructMemberOffset_Array) {
// enable chromium_internal_relaxed_uniform_layout;
//
// type Inner = @stride(16) array<f32, 10u>;
//
// struct Outer {
// scalar : f32;
// inner : Inner;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Enable(wgsl::Extension::kChromiumInternalRelaxedUniformLayout);
Alias("Inner", ty.array<f32, 10>(Vector{Stride(16)}));
Structure("Outer", Vector{
Member("scalar", ty.f32()),
Member("inner", ty("Inner")),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, RelaxedUniformLayout_MemberOffsetNotMutipleOf16) {
// enable chromium_internal_relaxed_uniform_layout;
//
// struct Inner {
// @align(1) @size(5) scalar : i32;
// };
//
// struct Outer {
// inner : Inner;
// scalar : i32;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Enable(wgsl::Extension::kChromiumInternalRelaxedUniformLayout);
Structure("Inner", Vector{
Member("scalar", ty.i32(), Vector{MemberAlign(1_i), MemberSize(5_a)}),
});
Structure("Outer", Vector{
Member("inner", ty("Inner")),
Member("scalar", ty.i32()),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, RelaxedUniformLayout_ArrayStride_Scalar) {
// enable chromium_internal_relaxed_uniform_layout;
//
// struct Outer {
// arr : array<f32, 10u>;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Enable(wgsl::Extension::kChromiumInternalRelaxedUniformLayout);
Structure("Outer", Vector{
Member("arr", ty.array<f32, 10>()),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverAddressSpaceLayoutValidationTest, RelaxedUniformLayout_ArrayStride_Vech) {
// enable f16;
// enable chromium_internal_relaxed_uniform_layout;
//
// struct Outer {
// arr : array<vec3<f16>, 10u>;
// };
//
// @group(0) @binding(0)
// var<uniform> a : Outer;
Enable(wgsl::Extension::kF16);
Enable(wgsl::Extension::kChromiumInternalRelaxedUniformLayout);
Structure("Outer", Vector{
Member("arr", ty.array<vec3<f16>, 10>()),
});
GlobalVar("a", ty("Outer"), core::AddressSpace::kUniform, Group(0_a), Binding(0_a));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
} // namespace
} // namespace tint::resolver