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dawn / tint / 4a15605be725129166edba4d3b00b19fc1a0da75 / . / src / reader / spirv / parser_impl_handle_test.cc
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// Copyright 2020 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 <ostream>
#include "gmock/gmock.h"
#include "src/reader/spirv/function.h"
#include "src/reader/spirv/parser_impl_test_helper.h"
#include "src/reader/spirv/spirv_tools_helpers_test.h"
namespace tint {
namespace reader {
namespace spirv {
namespace {
using ::testing::Eq;
using ::testing::HasSubstr;
using ::testing::Not;
using ::testing::StartsWith;
using SpvParserHandleTest = SpvParserTest;
std::string Preamble() {
return R"(
OpCapability Shader
OpCapability Sampled1D
OpCapability Image1D
OpCapability StorageImageExtendedFormats
OpCapability ImageQuery
OpMemoryModel Logical Simple
)";
}
std::string FragMain() {
return R"(
OpEntryPoint Fragment %main "main" ; assume no IO
OpExecutionMode %main OriginUpperLeft
)";
}
std::string MainBody() {
return R"(
%main = OpFunction %void None %voidfn
%main_entry = OpLabel
OpReturn
OpFunctionEnd
)";
}
std::string CommonBasicTypes() {
return R"(
%void = OpTypeVoid
%voidfn = OpTypeFunction %void
%float = OpTypeFloat 32
%uint = OpTypeInt 32 0
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%int_1 = OpConstant %int 1
%int_2 = OpConstant %int 2
%int_3 = OpConstant %int 3
%int_4 = OpConstant %int 4
%uint_0 = OpConstant %uint 0
%uint_1 = OpConstant %uint 1
%uint_2 = OpConstant %uint 2
%uint_3 = OpConstant %uint 3
%uint_4 = OpConstant %uint 4
%uint_100 = OpConstant %uint 100
%v2int = OpTypeVector %int 2
%v3int = OpTypeVector %int 3
%v4int = OpTypeVector %int 4
%v2uint = OpTypeVector %uint 2
%v3uint = OpTypeVector %uint 3
%v4uint = OpTypeVector %uint 4
%v2float = OpTypeVector %float 2
%v3float = OpTypeVector %float 3
%v4float = OpTypeVector %float 4
%float_null = OpConstantNull %float
%float_0 = OpConstant %float 0
%float_1 = OpConstant %float 1
%float_2 = OpConstant %float 2
%float_3 = OpConstant %float 3
%float_4 = OpConstant %float 4
%float_7 = OpConstant %float 7
%v2float_null = OpConstantNull %v2float
%v3float_null = OpConstantNull %v3float
%v4float_null = OpConstantNull %v4float
%the_vi12 = OpConstantComposite %v2int %int_1 %int_2
%the_vi123 = OpConstantComposite %v3int %int_1 %int_2 %int_3
%the_vi1234 = OpConstantComposite %v4int %int_1 %int_2 %int_3 %int_4
%the_vu12 = OpConstantComposite %v2uint %uint_1 %uint_2
%the_vu123 = OpConstantComposite %v3uint %uint_1 %uint_2 %uint_3
%the_vu1234 = OpConstantComposite %v4uint %uint_1 %uint_2 %uint_3 %uint_4
%the_vf12 = OpConstantComposite %v2float %float_1 %float_2
%the_vf21 = OpConstantComposite %v2float %float_2 %float_1
%the_vf123 = OpConstantComposite %v3float %float_1 %float_2 %float_3
%the_vf1234 = OpConstantComposite %v4float %float_1 %float_2 %float_3 %float_4
%depth = OpConstant %float 0.2
)";
}
std::string CommonImageTypes() {
return R"(
; Define types for all sampler and texture types that can map to WGSL,
; modulo texel formats for storage textures. For now, we limit
; ourselves to 2-channel 32-bit texel formats.
; Because the SPIR-V reader also already generalizes so it can work with
; combined image-samplers, we also test that too.
%sampler = OpTypeSampler
; sampled images
%f_texture_1d = OpTypeImage %float 1D 0 0 0 1 Unknown
%f_texture_2d = OpTypeImage %float 2D 0 0 0 1 Unknown
%f_texture_2d_ms = OpTypeImage %float 2D 0 0 1 1 Unknown
%f_texture_2d_array = OpTypeImage %float 2D 0 1 0 1 Unknown
%f_texture_2d_ms_array = OpTypeImage %float 2D 0 1 1 1 Unknown ; not in WebGPU
%f_texture_3d = OpTypeImage %float 3D 0 0 0 1 Unknown
%f_texture_cube = OpTypeImage %float Cube 0 0 0 1 Unknown
%f_texture_cube_array = OpTypeImage %float Cube 0 1 0 1 Unknown
; storage images
%f_storage_1d = OpTypeImage %float 1D 0 0 0 2 Rg32f
%f_storage_2d = OpTypeImage %float 2D 0 0 0 2 Rg32f
%f_storage_2d_array = OpTypeImage %float 2D 0 1 0 2 Rg32f
%f_storage_3d = OpTypeImage %float 3D 0 0 0 2 Rg32f
; Now all the same, but for unsigned integer sampled type.
%u_texture_1d = OpTypeImage %uint 1D 0 0 0 1 Unknown
%u_texture_2d = OpTypeImage %uint 2D 0 0 0 1 Unknown
%u_texture_2d_ms = OpTypeImage %uint 2D 0 0 1 1 Unknown
%u_texture_2d_array = OpTypeImage %uint 2D 0 1 0 1 Unknown
%u_texture_2d_ms_array = OpTypeImage %uint 2D 0 1 1 1 Unknown ; not in WebGPU
%u_texture_3d = OpTypeImage %uint 3D 0 0 0 1 Unknown
%u_texture_cube = OpTypeImage %uint Cube 0 0 0 1 Unknown
%u_texture_cube_array = OpTypeImage %uint Cube 0 1 0 1 Unknown
%u_storage_1d = OpTypeImage %uint 1D 0 0 0 2 Rg32ui
%u_storage_2d = OpTypeImage %uint 2D 0 0 0 2 Rg32ui
%u_storage_2d_array = OpTypeImage %uint 2D 0 1 0 2 Rg32ui
%u_storage_3d = OpTypeImage %uint 3D 0 0 0 2 Rg32ui
; Now all the same, but for signed integer sampled type.
%i_texture_1d = OpTypeImage %int 1D 0 0 0 1 Unknown
%i_texture_2d = OpTypeImage %int 2D 0 0 0 1 Unknown
%i_texture_2d_ms = OpTypeImage %int 2D 0 0 1 1 Unknown
%i_texture_2d_array = OpTypeImage %int 2D 0 1 0 1 Unknown
%i_texture_2d_ms_array = OpTypeImage %int 2D 0 1 1 1 Unknown ; not in WebGPU
%i_texture_3d = OpTypeImage %int 3D 0 0 0 1 Unknown
%i_texture_cube = OpTypeImage %int Cube 0 0 0 1 Unknown
%i_texture_cube_array = OpTypeImage %int Cube 0 1 0 1 Unknown
%i_storage_1d = OpTypeImage %int 1D 0 0 0 2 Rg32i
%i_storage_2d = OpTypeImage %int 2D 0 0 0 2 Rg32i
%i_storage_2d_array = OpTypeImage %int 2D 0 1 0 2 Rg32i
%i_storage_3d = OpTypeImage %int 3D 0 0 0 2 Rg32i
;; Now pointers to each of the above, so we can declare variables for them.
%ptr_sampler = OpTypePointer UniformConstant %sampler
%ptr_f_texture_1d = OpTypePointer UniformConstant %f_texture_1d
%ptr_f_texture_2d = OpTypePointer UniformConstant %f_texture_2d
%ptr_f_texture_2d_ms = OpTypePointer UniformConstant %f_texture_2d_ms
%ptr_f_texture_2d_array = OpTypePointer UniformConstant %f_texture_2d_array
%ptr_f_texture_2d_ms_array = OpTypePointer UniformConstant %f_texture_2d_ms_array
%ptr_f_texture_3d = OpTypePointer UniformConstant %f_texture_3d
%ptr_f_texture_cube = OpTypePointer UniformConstant %f_texture_cube
%ptr_f_texture_cube_array = OpTypePointer UniformConstant %f_texture_cube_array
; storage images
%ptr_f_storage_1d = OpTypePointer UniformConstant %f_storage_1d
%ptr_f_storage_2d = OpTypePointer UniformConstant %f_storage_2d
%ptr_f_storage_2d_array = OpTypePointer UniformConstant %f_storage_2d_array
%ptr_f_storage_3d = OpTypePointer UniformConstant %f_storage_3d
; Now all the same, but for unsigned integer sampled type.
%ptr_u_texture_1d = OpTypePointer UniformConstant %u_texture_1d
%ptr_u_texture_2d = OpTypePointer UniformConstant %u_texture_2d
%ptr_u_texture_2d_ms = OpTypePointer UniformConstant %u_texture_2d_ms
%ptr_u_texture_2d_array = OpTypePointer UniformConstant %u_texture_2d_array
%ptr_u_texture_2d_ms_array = OpTypePointer UniformConstant %u_texture_2d_ms_array
%ptr_u_texture_3d = OpTypePointer UniformConstant %u_texture_3d
%ptr_u_texture_cube = OpTypePointer UniformConstant %u_texture_cube
%ptr_u_texture_cube_array = OpTypePointer UniformConstant %u_texture_cube_array
%ptr_u_storage_1d = OpTypePointer UniformConstant %u_storage_1d
%ptr_u_storage_2d = OpTypePointer UniformConstant %u_storage_2d
%ptr_u_storage_2d_array = OpTypePointer UniformConstant %u_storage_2d_array
%ptr_u_storage_3d = OpTypePointer UniformConstant %u_storage_3d
; Now all the same, but for signed integer sampled type.
%ptr_i_texture_1d = OpTypePointer UniformConstant %i_texture_1d
%ptr_i_texture_2d = OpTypePointer UniformConstant %i_texture_2d
%ptr_i_texture_2d_ms = OpTypePointer UniformConstant %i_texture_2d_ms
%ptr_i_texture_2d_array = OpTypePointer UniformConstant %i_texture_2d_array
%ptr_i_texture_2d_ms_array = OpTypePointer UniformConstant %i_texture_2d_ms_array
%ptr_i_texture_3d = OpTypePointer UniformConstant %i_texture_3d
%ptr_i_texture_cube = OpTypePointer UniformConstant %i_texture_cube
%ptr_i_texture_cube_array = OpTypePointer UniformConstant %i_texture_cube_array
%ptr_i_storage_1d = OpTypePointer UniformConstant %i_storage_1d
%ptr_i_storage_2d = OpTypePointer UniformConstant %i_storage_2d
%ptr_i_storage_2d_array = OpTypePointer UniformConstant %i_storage_2d_array
%ptr_i_storage_3d = OpTypePointer UniformConstant %i_storage_3d
)";
}
std::string CommonTypes() {
return CommonBasicTypes() + CommonImageTypes();
}
std::string Bindings(std::vector<uint32_t> ids) {
std::ostringstream os;
int binding = 0;
for (auto id : ids) {
os << " OpDecorate %" << id << " DescriptorSet 0\n"
<< " OpDecorate %" << id << " Binding " << binding++ << "\n";
}
return os.str();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_WellFormedButNotAHandle) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%10 = OpConstantNull %ptr_sampler
%20 = OpConstantNull %ptr_f_texture_1d
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule()) << assembly;
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(10, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(20, true);
EXPECT_EQ(sampler, nullptr);
EXPECT_EQ(image, nullptr);
EXPECT_TRUE(p->error().empty());
p->DeliberatelyInvalidSpirv(); // WGSL does not have null pointers.
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_Direct) {
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_1d UniformConstant
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(10, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(20, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_AccessChain) {
// Show that we would generalize to arrays of handles, even though that
// is not supported in WGSL MVP.
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%10 = OpVariable %ptr_sampler_array UniformConstant
%20 = OpVariable %ptr_image_array UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%110 = OpAccessChain %ptr_sampler %10 %uint_1
%120 = OpAccessChain %ptr_f_texture_1d %20 %uint_2
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// WGSL does not support arrays of textures and samplers.
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_InBoundsAccessChain) {
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%10 = OpVariable %ptr_sampler_array UniformConstant
%20 = OpVariable %ptr_image_array UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%110 = OpInBoundsAccessChain %ptr_sampler %10 %uint_1
%120 = OpInBoundsAccessChain %ptr_f_texture_1d %20 %uint_2
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// WGSL does not support arrays of textures and samplers.
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_PtrAccessChain) {
// Show that we would generalize to arrays of handles, even though that
// is not supported in WGSL MVP.
// Use VariablePointers for the OpInBoundsPtrAccessChain.
const auto assembly = "OpCapability VariablePointers " + Preamble() +
FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%10 = OpVariable %ptr_sampler_array UniformConstant
%20 = OpVariable %ptr_image_array UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%110 = OpPtrAccessChain %ptr_sampler %10 %uint_1 %uint_1
%120 = OpPtrAccessChain %ptr_f_texture_1d %20 %uint_1 %uint_2
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// Variable pointers is not allowed for WGSL. So don't dump it.
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_InBoundsPtrAccessChain) {
// Use VariablePointers for the OpInBoundsPtrAccessChain.
const auto assembly = "OpCapability VariablePointers " + Preamble() +
FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%10 = OpVariable %ptr_sampler_array UniformConstant
%20 = OpVariable %ptr_image_array UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%110 = OpInBoundsPtrAccessChain %ptr_sampler %10 %uint_1 %uint_1
%120 = OpInBoundsPtrAccessChain %ptr_f_texture_1d %20 %uint_1 %uint_2
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// Variable pointers is not allowed for WGSL. So don't dump it.
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_CopyObject) {
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_1d UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%110 = OpCopyObject %ptr_sampler %10
%120 = OpCopyObject %ptr_f_texture_1d %20
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
}
TEST_F(SpvParserHandleTest, GetMemoryObjectDeclarationForHandle_Variable_Load) {
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_1d UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%110 = OpLoad %sampler %10
%120 = OpLoad %f_texture_1d %20
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_SampledImage) {
// Trace through the sampled image instruction, but in two different
// directions.
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%sampled_image_type = OpTypeSampledImage %f_texture_1d
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_1d UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%s = OpLoad %sampler %10
%im = OpLoad %f_texture_1d %20
%100 = OpSampledImage %sampled_image_type %im %s
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(100, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(100, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_Variable_Image) {
const auto assembly =
Preamble() + FragMain() + Bindings({10, 20}) + CommonTypes() + R"(
%sampled_image_type = OpTypeSampledImage %f_texture_1d
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_1d UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%s = OpLoad %sampler %10
%im = OpLoad %f_texture_1d %20
%100 = OpSampledImage %sampled_image_type %im %s
%200 = OpImage %f_texture_1d %100
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* image = p->GetMemoryObjectDeclarationForHandle(200, true);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_Direct) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%fty = OpTypeFunction %void %ptr_sampler %ptr_f_texture_1d
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler
%20 = OpFunctionParameter %ptr_f_texture_1d
%entry = OpLabel
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(10, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(20, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
p->SkipDumpingPending("crbug.com/tint/1039");
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_AccessChain) {
// Show that we would generalize to arrays of handles, even though that
// is not supported in WGSL MVP.
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%fty = OpTypeFunction %void %ptr_sampler_array %ptr_image_array
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler_array
%20 = OpFunctionParameter %ptr_image_array
%entry = OpLabel
%110 = OpAccessChain %ptr_sampler %10 %uint_1
%120 = OpAccessChain %ptr_f_texture_1d %20 %uint_2
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// WGSL does not support arrays of textures or samplers
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_InBoundsAccessChain) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%fty = OpTypeFunction %void %ptr_sampler_array %ptr_image_array
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler_array
%20 = OpFunctionParameter %ptr_image_array
%entry = OpLabel
%110 = OpInBoundsAccessChain %ptr_sampler %10 %uint_1
%120 = OpInBoundsAccessChain %ptr_f_texture_1d %20 %uint_2
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// WGSL does not support arrays of textures or samplers
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_PtrAccessChain) {
// Show that we would generalize to arrays of handles, even though that
// is not supported in WGSL MVP.
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%fty = OpTypeFunction %void %ptr_sampler_array %ptr_image_array
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler_array
%20 = OpFunctionParameter %ptr_image_array
%entry = OpLabel
%110 = OpPtrAccessChain %ptr_sampler %10 %uint_1 %uint_1
%120 = OpPtrAccessChain %ptr_f_texture_1d %20 %uint_1 %uint_2
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// Variable pointers is not allowed for WGSL. So don't dump it.
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_InBoundsPtrAccessChain) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%sampler_array = OpTypeArray %sampler %uint_100
%image_array = OpTypeArray %f_texture_1d %uint_100
%ptr_sampler_array = OpTypePointer UniformConstant %sampler_array
%ptr_image_array = OpTypePointer UniformConstant %image_array
%fty = OpTypeFunction %void %ptr_sampler_array %ptr_image_array
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler_array
%20 = OpFunctionParameter %ptr_image_array
%entry = OpLabel
%110 = OpInBoundsPtrAccessChain %ptr_sampler %10 %uint_1 %uint_1
%120 = OpInBoundsPtrAccessChain %ptr_f_texture_1d %20 %uint_1 %uint_2
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
// Variable pointers is not allowed for WGSL. So don't dump it.
p->DeliberatelyInvalidSpirv();
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_CopyObject) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%fty = OpTypeFunction %void %ptr_sampler %ptr_f_texture_1d
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler
%20 = OpFunctionParameter %ptr_f_texture_1d
%entry = OpLabel
%110 = OpCopyObject %ptr_sampler %10
%120 = OpCopyObject %ptr_f_texture_1d %20
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
p->SkipDumpingPending("crbug.com/tint/1039");
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_Load) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%fty = OpTypeFunction %void %ptr_sampler %ptr_f_texture_1d
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler
%20 = OpFunctionParameter %ptr_f_texture_1d
%entry = OpLabel
%110 = OpLoad %sampler %10
%120 = OpLoad %f_texture_1d %20
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(110, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(120, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
p->SkipDumpingPending("crbug.com/tint/1039");
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_SampledImage) {
// Trace through the sampled image instruction, but in two different
// directions.
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%sampled_image_type = OpTypeSampledImage %f_texture_1d
%fty = OpTypeFunction %void %ptr_sampler %ptr_f_texture_1d
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler
%20 = OpFunctionParameter %ptr_f_texture_1d
%entry = OpLabel
%s = OpLoad %sampler %10
%im = OpLoad %f_texture_1d %20
%100 = OpSampledImage %sampled_image_type %im %s
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* sampler = p->GetMemoryObjectDeclarationForHandle(100, false);
const auto* image = p->GetMemoryObjectDeclarationForHandle(100, true);
ASSERT_TRUE(sampler != nullptr);
EXPECT_EQ(sampler->result_id(), 10u);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
p->SkipDumpingPending("crbug.com/tint/1039");
}
TEST_F(SpvParserHandleTest,
GetMemoryObjectDeclarationForHandle_FuncParam_Image) {
const auto assembly = Preamble() + FragMain() + CommonTypes() + R"(
%sampled_image_type = OpTypeSampledImage %f_texture_1d
%fty = OpTypeFunction %void %ptr_sampler %ptr_f_texture_1d
%func = OpFunction %void None %fty
%10 = OpFunctionParameter %ptr_sampler
%20 = OpFunctionParameter %ptr_f_texture_1d
%entry = OpLabel
%s = OpLoad %sampler %10
%im = OpLoad %f_texture_1d %20
%100 = OpSampledImage %sampled_image_type %im %s
%200 = OpImage %f_texture_1d %100
OpReturn
OpFunctionEnd
)" + MainBody();
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->error().empty());
const auto* image = p->GetMemoryObjectDeclarationForHandle(200, true);
ASSERT_TRUE(image != nullptr);
EXPECT_EQ(image->result_id(), 20u);
p->SkipDumpingPending("crbug.com/tint/1039");
}
// Test RegisterHandleUsage, sampled image cases
struct UsageImageAccessCase {
std::string inst;
std::string expected_sampler_usage;
std::string expected_image_usage;
};
inline std::ostream& operator<<(std::ostream& out,
const UsageImageAccessCase& c) {
out << "UsageImageAccessCase(" << c.inst << ", " << c.expected_sampler_usage
<< ", " << c.expected_image_usage << ")";
return out;
}
using SpvParserHandleTest_RegisterHandleUsage_SampledImage =
SpvParserTestBase<::testing::TestWithParam<UsageImageAccessCase>>;
TEST_P(SpvParserHandleTest_RegisterHandleUsage_SampledImage, Variable) {
const std::string inst = GetParam().inst;
const auto assembly = Preamble() + FragMain() + Bindings({10, 20}) +
CommonTypes() + R"(
%si_ty = OpTypeSampledImage %f_texture_2d
%coords = OpConstantNull %v2float
%coords3d = OpConstantNull %v3float ; needed for Proj variants
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_2d UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%sam = OpLoad %sampler %10
%im = OpLoad %f_texture_2d %20
%sampled_image = OpSampledImage %si_ty %im %sam
)" + GetParam().inst + R"(
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->RegisterHandleUsage());
EXPECT_TRUE(p->error().empty());
Usage su = p->GetHandleUsage(10);
Usage iu = p->GetHandleUsage(20);
EXPECT_THAT(su.to_str(), Eq(GetParam().expected_sampler_usage));
EXPECT_THAT(iu.to_str(), Eq(GetParam().expected_image_usage));
if (inst.find("ImageQueryLod") != std::string::npos) {
// WGSL does not support querying image level of detail.
// So don't emit them as part of a "passing" corpus.
p->DeliberatelyInvalidSpirv();
}
if (inst.find("ImageSampleDrefExplicitLod") != std::string::npos) {
p->SkipDumpingPending("crbug.com/tint/425"); // gpuweb issue #1319
}
}
TEST_P(SpvParserHandleTest_RegisterHandleUsage_SampledImage, FunctionParam) {
const std::string inst = GetParam().inst;
const auto assembly = Preamble() + FragMain() + Bindings({10, 20}) +
CommonTypes() + R"(
%f_ty = OpTypeFunction %void %ptr_sampler %ptr_f_texture_2d
%si_ty = OpTypeSampledImage %f_texture_2d
%coords = OpConstantNull %v2float
%coords3d = OpConstantNull %v3float ; needed for Proj variants
%component = OpConstant %uint 1
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_f_texture_2d UniformConstant
%func = OpFunction %void None %f_ty
%110 = OpFunctionParameter %ptr_sampler
%120 = OpFunctionParameter %ptr_f_texture_2d
%func_entry = OpLabel
%sam = OpLoad %sampler %110
%im = OpLoad %f_texture_2d %120
%sampled_image = OpSampledImage %si_ty %im %sam
)" + inst + R"(
OpReturn
OpFunctionEnd
%main = OpFunction %void None %voidfn
%entry = OpLabel
%foo = OpFunctionCall %void %func %10 %20
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule()) << p->error() << assembly << std::endl;
EXPECT_TRUE(p->RegisterHandleUsage()) << p->error() << assembly << std::endl;
EXPECT_TRUE(p->error().empty()) << p->error() << assembly << std::endl;
Usage su = p->GetHandleUsage(10);
Usage iu = p->GetHandleUsage(20);
EXPECT_THAT(su.to_str(), Eq(GetParam().expected_sampler_usage));
EXPECT_THAT(iu.to_str(), Eq(GetParam().expected_image_usage));
if (inst.find("ImageQueryLod") != std::string::npos) {
// WGSL does not support querying image level of detail.
// So don't emit them as part of a "passing" corpus.
p->DeliberatelyInvalidSpirv();
}
p->SkipDumpingPending("crbug.com/tint/785");
}
INSTANTIATE_TEST_SUITE_P(
Samples,
SpvParserHandleTest_RegisterHandleUsage_SampledImage,
::testing::Values(
// OpImageGather
UsageImageAccessCase{"%result = OpImageGather "
"%v4float %sampled_image %coords %uint_1",
"Usage(Sampler( ))",
"Usage(Texture( is_sampled ))"},
// OpImageDrefGather
UsageImageAccessCase{"%result = OpImageDrefGather "
"%v4float %sampled_image %coords %depth",
"Usage(Sampler( comparison ))",
"Usage(Texture( is_sampled depth ))"},
// Sample the texture.
// OpImageSampleImplicitLod
UsageImageAccessCase{"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords",
"Usage(Sampler( ))",
"Usage(Texture( is_sampled ))"},
// OpImageSampleExplicitLod
UsageImageAccessCase{"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords Lod %float_null",
"Usage(Sampler( ))",
"Usage(Texture( is_sampled ))"},
// OpImageSampleDrefImplicitLod
UsageImageAccessCase{"%result = OpImageSampleDrefImplicitLod "
"%float %sampled_image %coords %depth",
"Usage(Sampler( comparison ))",
"Usage(Texture( is_sampled depth ))"},
// OpImageSampleDrefExplicitLod
UsageImageAccessCase{
"%result = OpImageSampleDrefExplicitLod "
"%float %sampled_image %coords %depth Lod %float_null",
"Usage(Sampler( comparison ))",
"Usage(Texture( is_sampled depth ))"},
// Sample the texture, with *Proj* variants, even though WGSL doesn't
// support them.
// OpImageSampleProjImplicitLod
UsageImageAccessCase{"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords3d",
"Usage(Sampler( ))",
"Usage(Texture( is_sampled ))"},
// OpImageSampleProjExplicitLod
UsageImageAccessCase{
"%result = OpImageSampleProjExplicitLod "
"%v4float %sampled_image %coords3d Lod %float_null",
"Usage(Sampler( ))", "Usage(Texture( is_sampled ))"},
// OpImageSampleProjDrefImplicitLod
UsageImageAccessCase{"%result = OpImageSampleProjDrefImplicitLod "
"%float %sampled_image %coords3d %depth",
"Usage(Sampler( comparison ))",
"Usage(Texture( is_sampled depth ))"},
// OpImageSampleProjDrefExplicitLod
UsageImageAccessCase{
"%result = OpImageSampleProjDrefExplicitLod "
"%float %sampled_image %coords3d %depth Lod %float_null",
"Usage(Sampler( comparison ))",
"Usage(Texture( is_sampled depth ))"},
// OpImageQueryLod
UsageImageAccessCase{
"%result = OpImageQueryLod %v2float %sampled_image %coords",
"Usage(Sampler( ))", "Usage(Texture( is_sampled ))"}));
// Test RegisterHandleUsage, raw image cases.
// For these we test the use of an image value directly, and not combined
// with the sampler. The image still could be of sampled image type.
struct UsageRawImageCase {
std::string type; // Example: f_storage_1d or f_texture_1d
std::string inst;
std::string expected_image_usage;
};
inline std::ostream& operator<<(std::ostream& out, const UsageRawImageCase& c) {
out << "UsageRawImageCase(" << c.type << ", " << c.inst << ", "
<< c.expected_image_usage << ")";
return out;
}
using SpvParserHandleTest_RegisterHandleUsage_RawImage =
SpvParserTestBase<::testing::TestWithParam<UsageRawImageCase>>;
TEST_P(SpvParserHandleTest_RegisterHandleUsage_RawImage, Variable) {
const bool is_storage = GetParam().type.find("storage") != std::string::npos;
const bool is_write = GetParam().inst.find("ImageWrite") != std::string::npos;
const auto assembly = Preamble() + FragMain() + Bindings({20}) +
(is_storage ? std::string("OpDecorate %20 ") +
std::string(is_write ? "NonReadable"
: "NonWritable")
: std::string("")) +
" " + CommonTypes() + R"(
%20 = OpVariable %ptr_)" +
GetParam().type + R"( UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%im = OpLoad %)" + GetParam().type +
R"( %20
)" + GetParam().inst + R"(
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->RegisterHandleUsage());
EXPECT_TRUE(p->error().empty());
Usage iu = p->GetHandleUsage(20);
EXPECT_THAT(iu.to_str(), Eq(GetParam().expected_image_usage));
Usage su = p->GetHandleUsage(20);
}
TEST_P(SpvParserHandleTest_RegisterHandleUsage_RawImage, FunctionParam) {
const bool is_storage = GetParam().type.find("storage") != std::string::npos;
const bool is_write = GetParam().inst.find("ImageWrite") != std::string::npos;
const auto assembly = Preamble() + FragMain() + Bindings({20}) +
(is_storage ? std::string("OpDecorate %20 ") +
std::string(is_write ? "NonReadable"
: "NonWritable")
: std::string("")) +
" " + CommonTypes() + R"(
%f_ty = OpTypeFunction %void %ptr_)" +
GetParam().type + R"(
%20 = OpVariable %ptr_)" +
GetParam().type + R"( UniformConstant
%func = OpFunction %void None %f_ty
%i_param = OpFunctionParameter %ptr_)" +
GetParam().type + R"(
%func_entry = OpLabel
%im = OpLoad %)" + GetParam().type +
R"( %i_param
)" + GetParam().inst + R"(
OpReturn
OpFunctionEnd
%main = OpFunction %void None %voidfn
%entry = OpLabel
%foo = OpFunctionCall %void %func %20
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildInternalModule());
EXPECT_TRUE(p->RegisterHandleUsage());
EXPECT_TRUE(p->error().empty());
Usage iu = p->GetHandleUsage(20);
EXPECT_THAT(iu.to_str(), Eq(GetParam().expected_image_usage));
// Textures and samplers not yet supported as function parameters.
p->SkipDumpingPending("crbug.com/tint/785");
}
INSTANTIATE_TEST_SUITE_P(
Samples,
SpvParserHandleTest_RegisterHandleUsage_RawImage,
::testing::Values(
// OpImageRead
UsageRawImageCase{"f_storage_1d",
"%result = OpImageRead %v4float %im %uint_1",
"Usage(Texture( read ))"},
// OpImageWrite
UsageRawImageCase{"f_storage_1d",
"OpImageWrite %im %uint_1 %v4float_null",
"Usage(Texture( write ))"},
// OpImageFetch
UsageRawImageCase{"f_texture_1d",
"%result = OpImageFetch "
"%v4float %im %uint_0",
"Usage(Texture( is_sampled ))"},
// Image queries
// OpImageQuerySizeLod
UsageRawImageCase{"f_texture_2d",
"%result = OpImageQuerySizeLod "
"%v2uint %im %uint_1",
"Usage(Texture( is_sampled ))"},
// OpImageQuerySize
// Could be MS=1 or storage image. So it's non-committal.
UsageRawImageCase{"f_storage_2d",
"%result = OpImageQuerySize "
"%v2uint %im",
"Usage()"},
// OpImageQueryLevels
UsageRawImageCase{"f_texture_2d",
"%result = OpImageQueryLevels "
"%uint %im",
"Usage(Texture( ))"},
// OpImageQuerySamples
UsageRawImageCase{"f_texture_2d_ms",
"%result = OpImageQuerySamples "
"%uint %im",
"Usage(Texture( is_sampled ms ))"}));
// Test emission of handle variables.
// Test emission of variables where we don't have enough clues from their
// use in image access instructions in executable code. For these we have
// to infer usage from the SPIR-V sampler or image type.
struct DeclUnderspecifiedHandleCase {
std::string decorations; // SPIR-V decorations
std::string inst; // SPIR-V variable declarations
std::string var_decl; // WGSL variable declaration
};
inline std::ostream& operator<<(std::ostream& out,
const DeclUnderspecifiedHandleCase& c) {
out << "DeclUnderspecifiedHandleCase(" << c.inst << "\n" << c.var_decl << ")";
return out;
}
using SpvParserHandleTest_DeclUnderspecifiedHandle =
SpvParserTestBase<::testing::TestWithParam<DeclUnderspecifiedHandleCase>>;
TEST_P(SpvParserHandleTest_DeclUnderspecifiedHandle, Variable) {
const auto assembly = Preamble() + R"(
OpEntryPoint Fragment %main "main"
OpExecutionMode %main OriginUpperLeft
OpDecorate %10 DescriptorSet 0
OpDecorate %10 Binding 0
)" + GetParam().decorations +
CommonTypes() + GetParam().inst +
R"(
%main = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildAndParseInternalModule()) << p->error() << assembly;
EXPECT_TRUE(p->error().empty()) << p->error();
const auto program = test::ToString(p->program());
EXPECT_THAT(program, HasSubstr(GetParam().var_decl)) << program;
}
INSTANTIATE_TEST_SUITE_P(
Samplers,
SpvParserHandleTest_DeclUnderspecifiedHandle,
::testing::Values(
DeclUnderspecifiedHandleCase{
"", R"(
%ptr = OpTypePointer UniformConstant %sampler
%10 = OpVariable %ptr UniformConstant
)",
R"(@group(0) @binding(0) var x_10 : sampler;)"}));
INSTANTIATE_TEST_SUITE_P(
Images,
SpvParserHandleTest_DeclUnderspecifiedHandle,
::testing::Values(
DeclUnderspecifiedHandleCase{
"", R"(
%10 = OpVariable %ptr_f_texture_1d UniformConstant
)",
R"(@group(0) @binding(0) var x_10 : texture_1d<f32>;)"},
DeclUnderspecifiedHandleCase{
R"(
OpDecorate %10 NonWritable
)",
R"(
%10 = OpVariable %ptr_f_storage_1d UniformConstant
)",
R"(@group(0) @binding(0) var x_10 : texture_1d<f32>;)"},
DeclUnderspecifiedHandleCase{
R"(
OpDecorate %10 NonReadable
)",
R"(
%10 = OpVariable %ptr_f_storage_1d UniformConstant
)",
R"(@group(0) @binding(0) var x_10 : texture_storage_1d<rg32float, write>;)"}));
// Test handle declaration or error, when there is an image access.
struct ImageDeclCase {
// SPIR-V image type, excluding result ID and opcode
std::string spirv_image_type_details;
std::string spirv_image_access; // Optional instruction to provoke use
std::string expected_error;
std::string expected_decl;
};
inline std::ostream& operator<<(std::ostream& out, const ImageDeclCase& c) {
out << "ImageDeclCase(" << c.spirv_image_type_details << "\n"
<< "access: " << c.spirv_image_access << "\n"
<< "error: " << c.expected_error << "\n"
<< "decl:" << c.expected_decl << "\n)";
return out;
}
using SpvParserHandleTest_ImageDeclTest =
SpvParserTestBase<::testing::TestWithParam<ImageDeclCase>>;
TEST_P(SpvParserHandleTest_ImageDeclTest, DeclareAndUseHandle) {
// Only declare the sampled image type, and the associated variable
// if the requested image type is a sampled image type and not multisampled.
const bool is_sampled_image_type = GetParam().spirv_image_type_details.find(
"0 1 Unknown") != std::string::npos;
const auto assembly =
Preamble() + R"(
OpEntryPoint Fragment %100 "main"
OpExecutionMode %100 OriginUpperLeft
OpName %float_var "float_var"
OpName %ptr_float "ptr_float"
OpName %i1 "i1"
OpName %vi12 "vi12"
OpName %vi123 "vi123"
OpName %vi1234 "vi1234"
OpName %u1 "u1"
OpName %vu12 "vu12"
OpName %vu123 "vu123"
OpName %vu1234 "vu1234"
OpName %f1 "f1"
OpName %vf12 "vf12"
OpName %vf123 "vf123"
OpName %vf1234 "vf1234"
OpDecorate %10 DescriptorSet 0
OpDecorate %10 Binding 0
OpDecorate %20 DescriptorSet 2
OpDecorate %20 Binding 1
OpDecorate %30 DescriptorSet 0
OpDecorate %30 Binding 1
)" + CommonBasicTypes() +
R"(
%sampler = OpTypeSampler
%ptr_sampler = OpTypePointer UniformConstant %sampler
%im_ty = OpTypeImage )" +
GetParam().spirv_image_type_details + R"(
%ptr_im_ty = OpTypePointer UniformConstant %im_ty
)" + (is_sampled_image_type ? " %si_ty = OpTypeSampledImage %im_ty " : "") +
R"(
%ptr_float = OpTypePointer Function %float
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_im_ty UniformConstant
%30 = OpVariable %ptr_sampler UniformConstant ; comparison sampler, when needed
%100 = OpFunction %void None %voidfn
%entry = OpLabel
%float_var = OpVariable %ptr_float Function
%i1 = OpCopyObject %int %int_1
%vi12 = OpCopyObject %v2int %the_vi12
%vi123 = OpCopyObject %v3int %the_vi123
%vi1234 = OpCopyObject %v4int %the_vi1234
%u1 = OpCopyObject %uint %uint_1
%vu12 = OpCopyObject %v2uint %the_vu12
%vu123 = OpCopyObject %v3uint %the_vu123
%vu1234 = OpCopyObject %v4uint %the_vu1234
%f1 = OpCopyObject %float %float_1
%vf12 = OpCopyObject %v2float %the_vf12
%vf123 = OpCopyObject %v3float %the_vf123
%vf1234 = OpCopyObject %v4float %the_vf1234
%sam = OpLoad %sampler %10
%im = OpLoad %im_ty %20
)" +
(is_sampled_image_type
? " %sampled_image = OpSampledImage %si_ty %im %sam "
: "") +
GetParam().spirv_image_access +
R"(
; Use an anchor for the cases when the image access doesn't have a result ID.
%1000 = OpCopyObject %uint %uint_0
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
const bool succeeded = p->BuildAndParseInternalModule();
if (succeeded) {
EXPECT_TRUE(GetParam().expected_error.empty());
const auto got = test::ToString(p->program());
EXPECT_THAT(got, HasSubstr(GetParam().expected_decl));
} else {
EXPECT_FALSE(GetParam().expected_error.empty());
EXPECT_THAT(p->error(), HasSubstr(GetParam().expected_error));
}
}
INSTANTIATE_TEST_SUITE_P(
Multisampled_Only2DNonArrayedIsValid,
SpvParserHandleTest_ImageDeclTest,
::testing::ValuesIn(std::vector<ImageDeclCase>{
{"%float 1D 0 0 1 1 Unknown", "%result = OpImageQuerySamples %uint %im",
"WGSL multisampled textures must be 2d and non-arrayed: ", ""},
{"%float 1D 0 1 1 1 Unknown", "%result = OpImageQuerySamples %uint %im",
"WGSL arrayed textures must be 2d_array or cube_array: ", ""},
{"%float 2D 0 0 1 1 Unknown", "%result = OpImageQuerySamples %uint %im",
"", "@group(2) @binding(1) var x_20 : texture_multisampled_2d<f32>;"},
{"%float 2D 0 1 1 1 Unknown", "%result = OpImageQuerySamples %uint %im",
"WGSL multisampled textures must be 2d and non-arrayed: ", ""},
{"%float 3D 0 0 1 1 Unknown", "%result = OpImageQuerySamples %uint %im",
"WGSL multisampled textures must be 2d and non-arrayed: ", ""},
{"%float 3D 0 1 1 1 Unknown", "%result = OpImageQuerySamples %uint %im",
"WGSL arrayed textures must be 2d_array or cube_array: ", ""},
{"%float Cube 0 0 1 1 Unknown",
"%result = OpImageQuerySamples %uint %im",
"WGSL multisampled textures must be 2d and non-arrayed: ", ""},
{"%float Cube 0 1 1 1 Unknown",
"%result = OpImageQuerySamples %uint %im",
"WGSL multisampled textures must be 2d and non-arrayed: ", ""}}));
// Test emission of variables when we have image accesses in executable code.
struct ImageAccessCase {
// SPIR-V image type, excluding result ID and opcode
std::string spirv_image_type_details;
std::string spirv_image_access; // The provoking image access instruction.
std::string var_decl; // WGSL variable declaration
std::string texture_builtin; // WGSL texture usage.
};
inline std::ostream& operator<<(std::ostream& out, const ImageAccessCase& c) {
out << "ImageCase(" << c.spirv_image_type_details << "\n"
<< c.spirv_image_access << "\n"
<< c.var_decl << "\n"
<< c.texture_builtin << ")";
return out;
}
using SpvParserHandleTest_SampledImageAccessTest =
SpvParserTestBase<::testing::TestWithParam<ImageAccessCase>>;
TEST_P(SpvParserHandleTest_SampledImageAccessTest, Variable) {
// Only declare the sampled image type, and the associated variable
// if the requested image type is a sampled image type, and not a
// multisampled texture
const bool is_sampled_image_type = GetParam().spirv_image_type_details.find(
"0 1 Unknown") != std::string::npos;
const auto assembly =
Preamble() + R"(
OpEntryPoint Fragment %main "main"
OpExecutionMode %main OriginUpperLeft
OpName %f1 "f1"
OpName %vf12 "vf12"
OpName %vf21 "vf21"
OpName %vf123 "vf123"
OpName %vf1234 "vf1234"
OpName %u1 "u1"
OpName %vu12 "vu12"
OpName %vu123 "vu123"
OpName %vu1234 "vu1234"
OpName %i1 "i1"
OpName %vi12 "vi12"
OpName %vi123 "vi123"
OpName %vi1234 "vi1234"
OpName %coords1 "coords1"
OpName %coords12 "coords12"
OpName %coords123 "coords123"
OpName %coords1234 "coords1234"
OpName %offsets2d "offsets2d"
OpName %u_offsets2d "u_offsets2d"
OpDecorate %10 DescriptorSet 0
OpDecorate %10 Binding 0
OpDecorate %20 DescriptorSet 2
OpDecorate %20 Binding 1
OpDecorate %30 DescriptorSet 0
OpDecorate %30 Binding 1
)" + CommonBasicTypes() +
R"(
%sampler = OpTypeSampler
%ptr_sampler = OpTypePointer UniformConstant %sampler
%im_ty = OpTypeImage )" +
GetParam().spirv_image_type_details + R"(
%ptr_im_ty = OpTypePointer UniformConstant %im_ty
)" + (is_sampled_image_type ? " %si_ty = OpTypeSampledImage %im_ty " : "") +
R"(
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_im_ty UniformConstant
%30 = OpVariable %ptr_sampler UniformConstant ; comparison sampler, when needed
; ConstOffset operands must be constants
%offsets2d = OpConstantComposite %v2int %int_3 %int_4
%u_offsets2d = OpConstantComposite %v2uint %uint_3 %uint_4
%main = OpFunction %void None %voidfn
%entry = OpLabel
%f1 = OpCopyObject %float %float_1
%vf12 = OpCopyObject %v2float %the_vf12
%vf21 = OpCopyObject %v2float %the_vf21
%vf123 = OpCopyObject %v3float %the_vf123
%vf1234 = OpCopyObject %v4float %the_vf1234
%i1 = OpCopyObject %int %int_1
%vi12 = OpCopyObject %v2int %the_vi12
%vi123 = OpCopyObject %v3int %the_vi123
%vi1234 = OpCopyObject %v4int %the_vi1234
%u1 = OpCopyObject %uint %uint_1
%vu12 = OpCopyObject %v2uint %the_vu12
%vu123 = OpCopyObject %v3uint %the_vu123
%vu1234 = OpCopyObject %v4uint %the_vu1234
%coords1 = OpCopyObject %float %float_1
%coords12 = OpCopyObject %v2float %vf12
%coords123 = OpCopyObject %v3float %vf123
%coords1234 = OpCopyObject %v4float %vf1234
%sam = OpLoad %sampler %10
%im = OpLoad %im_ty %20
)" +
(is_sampled_image_type
? " %sampled_image = OpSampledImage %si_ty %im %sam\n"
: "") +
GetParam().spirv_image_access +
R"(
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildAndParseInternalModule()) << p->error() << assembly;
EXPECT_TRUE(p->error().empty()) << p->error();
const auto program = test::ToString(p->program());
EXPECT_THAT(program, HasSubstr(GetParam().var_decl))
<< "DECLARATIONS ARE BAD " << program;
EXPECT_THAT(program, HasSubstr(GetParam().texture_builtin))
<< "TEXTURE BUILTIN IS BAD " << program << assembly;
const bool is_query_size =
GetParam().spirv_image_access.find("ImageQuerySize") != std::string::npos;
const bool is_1d =
GetParam().spirv_image_type_details.find("1D") != std::string::npos;
if (is_query_size && is_1d) {
p->SkipDumpingPending("crbug.com/tint/788");
}
}
// TODO(dneto): Test variable declaration and texture builtins provoked by
// use of an image access instruction inside helper function.
TEST_P(SpvParserHandleTest_RegisterHandleUsage_SampledImage,
DISABLED_FunctionParam) {}
INSTANTIATE_TEST_SUITE_P(
ImageGather,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// OpImageGather 2D
ImageAccessCase{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords12 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
"textureGather(1, x_20, x_10, coords12)"},
// OpImageGather 2D ConstOffset signed
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords12 %int_1 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
"textureGather(1, x_20, x_10, coords12, vec2<i32>(3, 4))"},
// OpImageGather 2D ConstOffset unsigned
ImageAccessCase{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords12 %int_1 ConstOffset "
"%u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
"textureGather(1, x_20, x_10, coords12, "
"vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageGather 2D Array
ImageAccessCase{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
"textureGather(1, x_20, x_10, coords123.xy, "
"i32(round(coords123.z)))"},
// OpImageGather 2D Array ConstOffset signed
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
"textureGather(1, x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), vec2<i32>(3, 4))"},
// OpImageGather 2D Array ConstOffset unsigned
ImageAccessCase{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1 ConstOffset "
"%u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
"textureGather(1, x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), "
"vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageGather Cube
ImageAccessCase{"%float Cube 0 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_cube<f32>;)",
"textureGather(1, x_20, x_10, coords123)"},
// OpImageGather Cube Array
ImageAccessCase{"%float Cube 0 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords1234 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_cube_array<f32>;)",
"textureGather(1, x_20, x_10, coords1234.xyz, "
"i32(round(coords1234.w)))"},
// OpImageGather 2DDepth
ImageAccessCase{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords12 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d;)",
"textureGather(x_20, x_10, coords12)"},
// OpImageGather 2DDepth ConstOffset signed
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords12 %int_1 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d;)",
"textureGather(x_20, x_10, coords12, vec2<i32>(3, 4))"},
// OpImageGather 2DDepth ConstOffset unsigned
ImageAccessCase{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords12 %int_1 ConstOffset "
"%u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d;)",
"textureGather(x_20, x_10, coords12, "
"vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageGather 2DDepth Array
ImageAccessCase{"%float 2D 1 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
"textureGather(x_20, x_10, coords123.xy, "
"i32(round(coords123.z)))"},
// OpImageGather 2DDepth Array ConstOffset signed
ImageAccessCase{
"%float 2D 1 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
"textureGather(x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), vec2<i32>(3, 4))"},
// OpImageGather 2DDepth Array ConstOffset unsigned
ImageAccessCase{"%float 2D 1 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1 ConstOffset "
"%u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
"textureGather(x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), "
"vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageGather DepthCube
ImageAccessCase{"%float Cube 1 0 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords123 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_cube;)",
"textureGather(x_20, x_10, coords123)"},
// OpImageGather DepthCube Array
ImageAccessCase{"%float Cube 1 1 0 1 Unknown",
"%result = OpImageGather "
"%v4float %sampled_image %coords1234 %int_1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_cube_array;)",
"textureGather(x_20, x_10, coords1234.xyz, "
"i32(round(coords1234.w)))"}}));
INSTANTIATE_TEST_SUITE_P(
ImageDrefGather,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// OpImageDrefGather 2DDepth
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords12 %depth",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;)",
"textureGatherCompare(x_20, x_10, coords12, 0.200000003)"},
// OpImageDrefGather 2DDepth ConstOffset signed
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords12 %depth ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;)",
"textureGatherCompare(x_20, x_10, coords12, 0.200000003, "
"vec2<i32>(3, 4))"},
// OpImageDrefGather 2DDepth ConstOffset unsigned
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords12 %depth ConstOffset "
"%u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;)",
"textureGatherCompare(x_20, x_10, coords12, 0.200000003, "
"vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageDrefGather 2DDepth Array
ImageAccessCase{"%float 2D 1 1 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords123 %depth",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
"textureGatherCompare(x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), 0.200000003)"},
// OpImageDrefGather 2DDepth Array ConstOffset signed
ImageAccessCase{
"%float 2D 1 1 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords123 %depth ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
"textureGatherCompare(x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), 0.200000003, vec2<i32>(3, 4))"},
// OpImageDrefGather 2DDepth Array ConstOffset unsigned
ImageAccessCase{"%float 2D 1 1 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords123 %depth ConstOffset "
"%u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
"textureGatherCompare(x_20, x_10, coords123.xy, "
"i32(round(coords123.z)), 0.200000003, "
"vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageDrefGather DepthCube
ImageAccessCase{
"%float Cube 1 0 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords123 %depth",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_cube;)",
"textureGatherCompare(x_20, x_10, coords123, 0.200000003)"},
// OpImageDrefGather DepthCube Array
ImageAccessCase{"%float Cube 1 1 0 1 Unknown",
"%result = OpImageDrefGather "
"%v4float %sampled_image %coords1234 %depth",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_cube_array;)",
"textureGatherCompare(x_20, x_10, coords1234.xyz, "
"i32(round(coords1234.w)), 0.200000003)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleImplicitLod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleImplicitLod
ImageAccessCase{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords12",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
"textureSample(x_20, x_10, coords12)"},
// OpImageSampleImplicitLod arrayed
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords123",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
"textureSample(x_20, x_10, coords123.xy, i32(round(coords123.z)))"},
// OpImageSampleImplicitLod with ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords12 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
"textureSample(x_20, x_10, coords12, vec2<i32>(3, 4))"},
// OpImageSampleImplicitLod arrayed with ConstOffset
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords123 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSample(x_20, x_10, coords123.xy, i32(round(coords123.z)), vec2<i32>(3, 4)))"},
// OpImageSampleImplicitLod with Bias
ImageAccessCase{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords12 Bias %float_7",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
"textureSampleBias(x_20, x_10, coords12, 7.0)"},
// OpImageSampleImplicitLod arrayed with Bias
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords123 Bias %float_7",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleBias(x_20, x_10, coords123.xy, i32(round(coords123.z)), 7.0))"},
// OpImageSampleImplicitLod with Bias and signed ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords12 Bias|ConstOffset "
"%float_7 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleBias(x_20, x_10, coords12, 7.0, vec2<i32>(3, 4))"},
// OpImageSampleImplicitLod with Bias and unsigned ConstOffset
// Convert ConstOffset to signed
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords12 Bias|ConstOffset "
"%float_7 %u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleBias(x_20, x_10, coords12, 7.0, vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageSampleImplicitLod arrayed with Bias
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float %sampled_image %coords123 Bias|ConstOffset "
"%float_7 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleBias(x_20, x_10, coords123.xy, i32(round(coords123.z)), 7.0, vec2<i32>(3, 4))"}));
INSTANTIATE_TEST_SUITE_P(
// This test shows the use of a sampled image used with both regular
// sampling and depth-reference sampling. The texture is a depth-texture,
// and we use builtins textureSample and textureSampleCompare
ImageSampleImplicitLod_BothDrefAndNonDref,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleImplicitLod
ImageAccessCase{"%float 2D 0 0 0 1 Unknown", R"(
%sam_dref = OpLoad %sampler %30
%sampled_dref_image = OpSampledImage %si_ty %im %sam_dref
%200 = OpImageSampleImplicitLod %v4float %sampled_image %coords12
%210 = OpImageSampleDrefImplicitLod %float %sampled_dref_image %coords12 %depth
)",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d;
@group(0) @binding(1) var x_30 : sampler_comparison;
)",
R"(
let x_200 : vec4<f32> = vec4<f32>(textureSample(x_20, x_10, coords12), 0.0, 0.0, 0.0);
let x_210 : f32 = textureSampleCompare(x_20, x_30, coords12, 0.200000003);
)"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleDrefImplicitLod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// ImageSampleDrefImplicitLod
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod "
"%float %sampled_image %coords12 %depth",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompare(x_20, x_10, coords12, 0.200000003))"},
// ImageSampleDrefImplicitLod - arrayed
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod "
"%float %sampled_image %coords123 %depth",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
R"(textureSampleCompare(x_20, x_10, coords123.xy, i32(round(coords123.z)), 0.200000003))"},
// ImageSampleDrefImplicitLod with ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %float "
"%sampled_image %coords12 %depth ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompare(x_20, x_10, coords12, 0.200000003, vec2<i32>(3, 4)))"},
// ImageSampleDrefImplicitLod arrayed with ConstOffset
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %float "
"%sampled_image %coords123 %depth ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
R"(textureSampleCompare(x_20, x_10, coords123.xy, i32(round(coords123.z)), 0.200000003, vec2<i32>(3, 4)))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleDrefExplicitLod,
SpvParserHandleTest_SampledImageAccessTest,
// Lod must be float constant 0 due to a Metal constraint.
// Another test checks cases where the Lod is not float constant 0.
::testing::Values(
// 2D
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod "
"%float %sampled_image %coords12 %depth Lod %float_0",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompareLevel(x_20, x_10, coords12, 0.200000003))"},
// 2D array
ImageAccessCase{
"%float 2D 1 1 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod "
"%float %sampled_image %coords123 %depth Lod %float_0",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
R"(textureSampleCompareLevel(x_20, x_10, coords123.xy, i32(round(coords123.z)), 0.200000003))"},
// 2D, ConstOffset
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float "
"%sampled_image %coords12 %depth Lod|ConstOffset "
"%float_0 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompareLevel(x_20, x_10, coords12, 0.200000003, vec2<i32>(3, 4)))"},
// 2D array, ConstOffset
ImageAccessCase{
"%float 2D 1 1 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float "
"%sampled_image %coords123 %depth Lod|ConstOffset "
"%float_0 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
R"(textureSampleCompareLevel(x_20, x_10, coords123.xy, i32(round(coords123.z)), 0.200000003, vec2<i32>(3, 4)))"},
// Cube
ImageAccessCase{
"%float Cube 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod "
"%float %sampled_image %coords123 %depth Lod %float_0",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_cube;)",
R"(textureSampleCompareLevel(x_20, x_10, coords123, 0.200000003))"},
// Cube array
ImageAccessCase{
"%float Cube 1 1 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod "
"%float %sampled_image %coords1234 %depth Lod %float_0",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_cube_array;)",
R"(textureSampleCompareLevel(x_20, x_10, coords1234.xyz, i32(round(coords1234.w)), 0.200000003))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleExplicitLod_UsingLod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleExplicitLod - using Lod
ImageAccessCase{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords12 Lod %float_null",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleLevel(x_20, x_10, coords12, 0.0))"},
// OpImageSampleExplicitLod arrayed - using Lod
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords123 Lod %float_null",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleLevel(x_20, x_10, coords123.xy, i32(round(coords123.z)), 0.0))"},
// OpImageSampleExplicitLod - using Lod and ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords12 Lod|ConstOffset "
"%float_null %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleLevel(x_20, x_10, coords12, 0.0, vec2<i32>(3, 4)))"},
// OpImageSampleExplicitLod - using Lod and unsigned ConstOffset
// Convert the ConstOffset operand to signed
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords12 Lod|ConstOffset "
"%float_null %u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleLevel(x_20, x_10, coords12, 0.0, vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageSampleExplicitLod arrayed - using Lod and ConstOffset
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords123 Lod|ConstOffset "
"%float_null %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleLevel(x_20, x_10, coords123.xy, i32(round(coords123.z)), 0.0, vec2<i32>(3, 4)))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleExplicitLod_UsingGrad,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleExplicitLod - using Grad
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords12 Grad %vf12 %vf21",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleGrad(x_20, x_10, coords12, vf12, vf21))"},
// OpImageSampleExplicitLod arrayed - using Grad
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords123 Grad %vf12 %vf21",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleGrad(x_20, x_10, coords123.xy, i32(round(coords123.z)), vf12, vf21))"},
// OpImageSampleExplicitLod - using Grad and ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords12 Grad|ConstOffset "
"%vf12 %vf21 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleGrad(x_20, x_10, coords12, vf12, vf21, vec2<i32>(3, 4)))"},
// OpImageSampleExplicitLod - using Grad and unsigned ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords12 Grad|ConstOffset "
"%vf12 %vf21 %u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleGrad(x_20, x_10, coords12, vf12, vf21, vec2<i32>(vec2<u32>(3u, 4u)))"},
// OpImageSampleExplicitLod arrayed - using Grad and ConstOffset
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords123 Grad|ConstOffset "
"%vf12 %vf21 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleGrad(x_20, x_10, coords123.xy, i32(round(coords123.z)), vf12, vf21, vec2<i32>(3, 4)))"},
// OpImageSampleExplicitLod arrayed - using Grad and unsigned
// ConstOffset
ImageAccessCase{
"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleExplicitLod "
"%v4float %sampled_image %coords123 Grad|ConstOffset "
"%vf12 %vf21 %u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(textureSampleGrad(x_20, x_10, coords123.xy, i32(round(coords123.z)), vf12, vf21, vec2<i32>(vec2<u32>(3u, 4u))))"}));
// Test crbug.com/378:
// In WGSL, sampling from depth texture with explicit level of detail
// requires the Lod parameter as an unsigned integer.
// This corresponds to SPIR-V OpSampleExplicitLod and WGSL textureSampleLevel.
INSTANTIATE_TEST_SUITE_P(
ImageSampleExplicitLod_DepthTexture,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Test a non-depth case.
// (This is already tested above in the ImageSampleExplicitLod suite,
// but I'm repeating here for the contrast with the depth case.)
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4float "
"%sampled_image %vf12 Lod %f1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleLevel(x_20, x_10, vf12, f1))"},
// Test a depth case
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4float "
"%sampled_image %vf12 Lod %f1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(vec4<f32>(textureSampleLevel(x_20, x_10, vf12, i32(f1)), 0.0, 0.0, 0.0))"}}));
/////
// Projection sampling
/////
// Test matrix for projection sampling:
// sampling
// Dimensions: 1D, 2D, 3D, 2DShadow
// Variations: Proj { ImplicitLod { | Bias } | ExplicitLod { Lod | Grad | } }
// x { | ConstOffset }
// depth-compare sampling
// Dimensions: 2D
// Variations: Proj Dref { ImplicitLod { | Bias } | ExplicitLod { Lod | Grad |
// } } x { | ConstOffset }
//
// Expanded:
// ImageSampleProjImplicitLod // { | ConstOffset }
// ImageSampleProjImplicitLod_Bias // { | ConstOffset }
// ImageSampleProjExplicitLod_Lod // { | ConstOffset }
// ImageSampleProjExplicitLod_Grad // { | ConstOffset }
//
// ImageSampleProjImplicitLod_DepthTexture
//
// ImageSampleProjDrefImplicitLod // { | ConstOffset }
// ImageSampleProjDrefExplicitLod_Lod // { | ConstOffset }
INSTANTIATE_TEST_SUITE_P(
ImageSampleProjImplicitLod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleProjImplicitLod 1D
ImageAccessCase{
"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords12",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_1d<f32>;)",
R"(textureSample(x_20, x_10, (coords12.x / coords12.y)))"},
// OpImageSampleProjImplicitLod 2D
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords123",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSample(x_20, x_10, (coords123.xy / coords123.z)))"},
// OpImageSampleProjImplicitLod 3D
ImageAccessCase{
"%float 3D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords1234",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_3d<f32>;)",
R"(textureSample(x_20, x_10, (coords1234.xyz / coords1234.w)))"},
// OpImageSampleProjImplicitLod 2D with ConstOffset
// (Don't need to test with 1D or 3D, as the hard part was the splatted
// division.) This case tests handling of the ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords123 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSample(x_20, x_10, (coords123.xy / coords123.z), vec2<i32>(3, 4)))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleProjImplicitLod_Bias,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleProjImplicitLod with Bias
// Only testing 2D
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords123 Bias %float_7",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleBias(x_20, x_10, (coords123.xy / coords123.z), 7.0))"},
// OpImageSampleProjImplicitLod with Bias and signed ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords123 Bias|ConstOffset "
"%float_7 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleBias(x_20, x_10, (coords123.xy / coords123.z), 7.0, vec2<i32>(3, 4)))"},
// OpImageSampleProjImplicitLod with Bias and unsigned ConstOffset
// Convert ConstOffset to signed
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords123 Bias|ConstOffset "
"%float_7 %u_offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleBias(x_20, x_10, (coords123.xy / coords123.z), 7.0, vec2<i32>(vec2<u32>(3u, 4u))))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleProjExplicitLod_Lod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleProjExplicitLod 2D
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjExplicitLod "
"%v4float %sampled_image %coords123 Lod %f1",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleLevel(x_20, x_10, (coords123.xy / coords123.z), f1))"},
// OpImageSampleProjExplicitLod 2D Lod with ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjExplicitLod "
"%v4float %sampled_image %coords123 Lod|ConstOffset %f1 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleLevel(x_20, x_10, (coords123.xy / coords123.z), f1, vec2<i32>(3, 4)))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleProjExplicitLod_Grad,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleProjExplicitLod 2D Grad
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjExplicitLod "
"%v4float %sampled_image %coords123 Grad %vf12 %vf21",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleGrad(x_20, x_10, (coords123.xy / coords123.z), vf12, vf21))"},
// OpImageSampleProjExplicitLod 2D Lod Grad ConstOffset
ImageAccessCase{
"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleProjExplicitLod "
"%v4float %sampled_image %coords123 Grad|ConstOffset "
"%vf12 %vf21 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(textureSampleGrad(x_20, x_10, (coords123.xy / coords123.z), vf12, vf21, vec2<i32>(3, 4)))"}));
INSTANTIATE_TEST_SUITE_P(
// Ordinary (non-comparison) sampling on a depth texture.
ImageSampleProjImplicitLod_DepthTexture,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleProjImplicitLod 2D depth
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjImplicitLod "
"%v4float %sampled_image %coords123",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
// Sampling the depth texture yields an f32, but the
// SPIR-V operation yiedls vec4<f32>, so fill out the
// remaining components with 0.
R"(vec4<f32>(textureSample(x_20, x_10, (coords123.xy / coords123.z)), 0.0, 0.0, 0.0))"}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleProjDrefImplicitLod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// OpImageSampleProjDrefImplicitLod 2D depth-texture
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefImplicitLod "
"%float %sampled_image %coords123 %f1",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompare(x_20, x_10, (coords123.xy / coords123.z), f1))"},
// OpImageSampleProjDrefImplicitLod 2D depth-texture, ConstOffset
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefImplicitLod "
"%float %sampled_image %coords123 %f1 ConstOffset %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompare(x_20, x_10, (coords123.xy / coords123.z), f1, vec2<i32>(3, 4)))"}));
INSTANTIATE_TEST_SUITE_P(
DISABLED_ImageSampleProjDrefExplicitLod_Lod,
SpvParserHandleTest_SampledImageAccessTest,
::testing::Values(
// Lod must be float constant 0 due to a Metal constraint.
// Another test checks cases where the Lod is not float constant 0.
// OpImageSampleProjDrefExplicitLod 2D depth-texture Lod
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefExplicitLod "
"%float %sampled_image %coords123 %depth Lod %float_0",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompare(x_20, x_10, (coords123.xy / coords123.z), 0.200000003, 0.0))"},
// OpImageSampleProjDrefImplicitLod 2D depth-texture, Lod ConstOffset
ImageAccessCase{
"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefExplicitLod "
"%float %sampled_image %coords123 %depth "
"Lod|ConstOffset %float_0 %offsets2d",
R"(@group(0) @binding(0) var x_10 : sampler_comparison;
@group(2) @binding(1) var x_20 : texture_depth_2d;
)",
R"(textureSampleCompareLevel(x_20, x_10, (coords123.xy / coords123.z), 0.200000003, 0.0, vec2<i32>(3, 4)))"}));
/////
// End projection sampling
/////
using SpvParserHandleTest_ImageAccessTest =
SpvParserTestBase<::testing::TestWithParam<ImageAccessCase>>;
TEST_P(SpvParserHandleTest_ImageAccessTest, Variable) {
// In this test harness, we only create an image.
const auto assembly = Preamble() + R"(
OpEntryPoint Fragment %main "main"
OpExecutionMode %main OriginUpperLeft
OpName %f1 "f1"
OpName %vf12 "vf12"
OpName %vf123 "vf123"
OpName %vf1234 "vf1234"
OpName %u1 "u1"
OpName %vu12 "vu12"
OpName %vu123 "vu123"
OpName %vu1234 "vu1234"
OpName %i1 "i1"
OpName %vi12 "vi12"
OpName %vi123 "vi123"
OpName %vi1234 "vi1234"
OpName %offsets2d "offsets2d"
OpDecorate %20 DescriptorSet 2
OpDecorate %20 Binding 1
)" + CommonBasicTypes() +
R"(
%im_ty = OpTypeImage )" +
GetParam().spirv_image_type_details + R"(
%ptr_im_ty = OpTypePointer UniformConstant %im_ty
%20 = OpVariable %ptr_im_ty UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%f1 = OpCopyObject %float %float_1
%vf12 = OpCopyObject %v2float %the_vf12
%vf123 = OpCopyObject %v3float %the_vf123
%vf1234 = OpCopyObject %v4float %the_vf1234
%i1 = OpCopyObject %int %int_1
%vi12 = OpCopyObject %v2int %the_vi12
%vi123 = OpCopyObject %v3int %the_vi123
%vi1234 = OpCopyObject %v4int %the_vi1234
%u1 = OpCopyObject %uint %uint_1
%vu12 = OpCopyObject %v2uint %the_vu12
%vu123 = OpCopyObject %v3uint %the_vu123
%vu1234 = OpCopyObject %v4uint %the_vu1234
%value_offset = OpCompositeConstruct %v2int %int_3 %int_4
%offsets2d = OpCopyObject %v2int %value_offset
%im = OpLoad %im_ty %20
)" + GetParam().spirv_image_access +
R"(
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
ASSERT_TRUE(p->BuildAndParseInternalModule()) << p->error() << assembly;
EXPECT_TRUE(p->error().empty()) << p->error();
const auto program = test::ToString(p->program());
EXPECT_THAT(program, HasSubstr(GetParam().var_decl))
<< "DECLARATIONS ARE BAD " << program;
EXPECT_THAT(program, HasSubstr(GetParam().texture_builtin))
<< "TEXTURE BUILTIN IS BAD " << program << assembly;
}
INSTANTIATE_TEST_SUITE_P(ImageWrite_OptionalParams,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// OpImageWrite with no extra params
{"%float 2D 0 0 0 2 Rgba32f",
"OpImageWrite %im %vi12 %vf1234",
"@group(2) @binding(1) var x_20 : "
"texture_storage_2d<rgba32float, write>;",
"textureStore(x_20, vi12, vf1234);"}}));
INSTANTIATE_TEST_SUITE_P(
// SPIR-V's texel parameter is a scalar or vector with at least as many
// components as there are channels in the underlying format, and the
// componet type matches the sampled type (modulo signed/unsigned integer).
// WGSL's texel parameter is a 4-element vector scalar or vector, with
// component type equal to the 32-bit form of the channel type.
ImageWrite_ConvertTexelOperand_Arity,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Source 1 component
{"%float 2D 0 0 0 2 R32f", "OpImageWrite %im %vi12 %f1",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<r32float, write>;)",
"textureStore(x_20, vi12, vec4<f32>(f1, 0.0, 0.0, 0.0));"},
// Source 2 component, dest 1 component
{"%float 2D 0 0 0 2 R32f", "OpImageWrite %im %vi12 %vf12",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<r32float, write>;)",
"textureStore(x_20, vi12, vec4<f32>(vf12, 0.0, 0.0));"},
// Source 3 component, dest 1 component
{"%float 2D 0 0 0 2 R32f", "OpImageWrite %im %vi12 %vf123",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<r32float, write>;)",
"textureStore(x_20, vi12, vec4<f32>(vf123, 0.0));"},
// Source 4 component, dest 1 component
{"%float 2D 0 0 0 2 R32f", "OpImageWrite %im %vi12 %vf1234",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<r32float, write>;)",
"textureStore(x_20, vi12, vf1234);"},
// Source 2 component, dest 2 component
{"%float 2D 0 0 0 2 Rg32f", "OpImageWrite %im %vi12 %vf12",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rg32float, write>;)",
"textureStore(x_20, vi12, vec4<f32>(vf12, 0.0, 0.0));"},
// Source 3 component, dest 2 component
{"%float 2D 0 0 0 2 Rg32f", "OpImageWrite %im %vi12 %vf123",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rg32float, write>;)",
"textureStore(x_20, vi12, vec4<f32>(vf123, 0.0));"},
// Source 4 component, dest 2 component
{"%float 2D 0 0 0 2 Rg32f", "OpImageWrite %im %vi12 %vf1234",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rg32float, write>;)",
"textureStore(x_20, vi12, vf1234);"},
// WGSL does not support 3-component storage textures.
// Source 4 component, dest 4 component
{"%float 2D 0 0 0 2 Rgba32f", "OpImageWrite %im %vi12 %vf1234",
"@group(2) @binding(1) var x_20 : "
"texture_storage_2d<rgba32float, write>;",
"textureStore(x_20, vi12, vf1234);"}}));
TEST_F(SpvParserHandleTest, ImageWrite_TooFewSrcTexelComponents_1_vs_4) {
const auto assembly = Preamble() + R"(
OpEntryPoint Fragment %main "main"
OpExecutionMode %main OriginUpperLeft
OpName %f1 "f1"
OpName %coords12 "coords12"
OpDecorate %20 DescriptorSet 2
OpDecorate %20 Binding 1
)" + CommonBasicTypes() +
R"(
%im_ty = OpTypeImage %void 2D 0 0 0 2 Rgba32f
%ptr_im_ty = OpTypePointer UniformConstant %im_ty
%20 = OpVariable %ptr_im_ty UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%f1 = OpCopyObject %float %float_1
%coords12 = OpCopyObject %v2float %the_vf12
%im = OpLoad %im_ty %20
OpImageWrite %im %coords12 %f1
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
EXPECT_FALSE(p->BuildAndParseInternalModule());
EXPECT_THAT(p->error(),
Eq("texel has too few components for storage texture: 1 provided "
"but 4 required, in: OpImageWrite %54 %3 %2"))
<< p->error();
}
TEST_F(SpvParserHandleTest, ImageWrite_ThreeComponentStorageTexture_IsError) {
// SPIR-V doesn't allow a 3-element storage texture format.
const auto assembly = Preamble() + R"(
OpEntryPoint Fragment %main "main"
OpExecutionMode %main OriginUpperLeft
OpName %vf123 "vf123"
OpName %coords12 "coords12"
OpDecorate %20 DescriptorSet 2
OpDecorate %20 Binding 1
)" + CommonBasicTypes() +
R"(
%im_ty = OpTypeImage %void 2D 0 0 0 2 Rgb32f
%ptr_im_ty = OpTypePointer UniformConstant %im_ty
%20 = OpVariable %ptr_im_ty UniformConstant
%main = OpFunction %void None %voidfn
%entry = OpLabel
%vf123 = OpCopyObject %v3float %the_vf123
%coords12 = OpCopyObject %v2float %the_vf12
%im = OpLoad %im_ty %20
OpImageWrite %im %coords12 %vf123
OpReturn
OpFunctionEnd
)";
auto error = test::AssembleFailure(assembly);
EXPECT_THAT(error, HasSubstr("Invalid image format 'Rgb32f'"));
}
INSTANTIATE_TEST_SUITE_P(
// The texel operand signedness must match the channel type signedness.
// SPIR-V validation checks that.
// This suite is for the cases where they are integral and the same
// signedness.
ImageWrite_ConvertTexelOperand_SameSignedness,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Sampled type is unsigned int, texel is unsigned int
{"%uint 2D 0 0 0 2 Rgba32ui", "OpImageWrite %im %vi12 %vu1234",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32uint, write>;)",
R"(textureStore(x_20, vi12, vu1234))"},
// Sampled type is signed int, texel is signed int
{"%int 2D 0 0 0 2 Rgba32i", "OpImageWrite %im %vi12 %vi1234",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32sint, write>;)",
R"(textureStore(x_20, vi12, vi1234))"}}));
INSTANTIATE_TEST_SUITE_P(
// Error out when OpImageWrite write texel differ in float vs. integral
ImageWrite_ConvertTexelOperand_DifferentFloatishness_IsError,
// Use the ImageDeclTest so we can check the error.
SpvParserHandleTest_ImageDeclTest,
::testing::ValuesIn(std::vector<ImageDeclCase>{
// Sampled type is float, texel is signed int
{"%uint 2D 0 0 0 2 Rgba32f", "OpImageWrite %im %vi12 %vi1234",
"invalid texel type for storage texture write: component must be "
"float, signed integer, or unsigned integer to match the texture "
"channel type: OpImageWrite",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32float, write>;)"},
// Sampled type is float, texel is unsigned int
{"%int 2D 0 0 0 2 Rgba32f", "OpImageWrite %im %vi12 %vu1234",
"invalid texel type for storage texture write: component must be "
"float, signed integer, or unsigned integer to match the texture "
"channel type: OpImageWrite",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32float, write>;)"},
// Sampled type is unsigned int, texel is float
{"%uint 2D 0 0 0 2 Rgba32ui", "OpImageWrite %im %vi12 %vf1234",
"invalid texel type for storage texture write: component must be "
"float, signed integer, or unsigned integer to match the texture "
"channel type: OpImageWrite",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32uint, write>;)"},
// Sampled type is signed int, texel is float
{"%int 2D 0 0 0 2 Rgba32i", "OpImageWrite %im %vi12 %vf1234",
"invalid texel type for storage texture write: component must be "
"float, signed integer, or unsigned integer to match the texture "
"channel type: OpImageWrite",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32sint, write>;
})"}}));
INSTANTIATE_TEST_SUITE_P(
// Error out when OpImageWrite write texel signedness is different.
ImageWrite_ConvertTexelOperand_DifferentSignedness_IsError,
// Use the ImageDeclTest so we can check the error.
SpvParserHandleTest_ImageDeclTest,
::testing::ValuesIn(std::vector<ImageDeclCase>{
// Sampled type is unsigned int, texel is signed int
{"%uint 2D 0 0 0 2 Rgba32ui", "OpImageWrite %im %vi12 %vi1234",
"invalid texel type for storage texture write: component must be "
"float, signed integer, or unsigned integer to match the texture "
"channel type: OpImageWrite",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32uint, write>;)"},
// Sampled type is signed int, texel is unsigned int
{"%int 2D 0 0 0 2 Rgba32i", "OpImageWrite %im %vi12 %vu1234",
"invalid texel type for storage texture write: component must be "
"float, signed integer, or unsigned integer to match the texture "
"channel type: OpImageWrite",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<rgba32sint, write>;
})"}}));
INSTANTIATE_TEST_SUITE_P(
// Show that zeros of the correct integer signedness are
// created when expanding an integer vector.
ImageWrite_ConvertTexelOperand_Signedness_AndWidening,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Source unsigned, dest unsigned
{"%uint 2D 0 0 0 2 R32ui", "OpImageWrite %im %vi12 %vu12",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<r32uint, write>;)",
R"(textureStore(x_20, vi12, vec4<u32>(vu12, 0u, 0u)))"},
// Source signed, dest signed
{"%int 2D 0 0 0 2 R32i", "OpImageWrite %im %vi12 %vi12",
R"(@group(2) @binding(1) var x_20 : texture_storage_2d<r32sint, write>;)",
R"(textureStore(x_20, vi12, vec4<i32>(vi12, 0, 0)))"}}));
INSTANTIATE_TEST_SUITE_P(
ImageFetch_OptionalParams,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// OpImageFetch with no extra params, on sampled texture
// Level of detail is injected for sampled texture
{"%float 2D 0 0 0 1 Unknown", "%99 = OpImageFetch %v4float %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureLoad(x_20, vi12, 0);)"},
// OpImageFetch with explicit level, on sampled texture
{"%float 2D 0 0 0 1 Unknown",
"%99 = OpImageFetch %v4float %im %vi12 Lod %int_3",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureLoad(x_20, vi12, 3);)"},
// OpImageFetch with no extra params, on depth texture
// Level of detail is injected for depth texture
{"%float 2D 1 0 0 1 Unknown", "%99 = OpImageFetch %v4float %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d;)",
R"(let x_99 : vec4<f32> = vec4<f32>(textureLoad(x_20, vi12, 0), 0.0, 0.0, 0.0);)"},
// OpImageFetch with extra params, on depth texture
{"%float 2D 1 0 0 1 Unknown",
"%99 = OpImageFetch %v4float %im %vi12 Lod %int_3",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d;)",
R"(let x_99 : vec4<f32> = vec4<f32>(textureLoad(x_20, vi12, 3), 0.0, 0.0, 0.0);)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageFetch_Depth,
// In SPIR-V OpImageFetch always yields a vector of 4
// elements, even for depth images. But in WGSL,
// textureLoad on a depth image yields f32.
// crbug.com/tint/439
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// ImageFetch on depth image.
{"%float 2D 1 0 0 1 Unknown", "%99 = OpImageFetch %v4float %im %vi12 ",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d;)",
R"(let x_99 : vec4<f32> = vec4<f32>(textureLoad(x_20, vi12, 0), 0.0, 0.0, 0.0);)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageFetch_DepthMultisampled,
// In SPIR-V OpImageFetch always yields a vector of 4
// elements, even for depth images. But in WGSL,
// textureLoad on a depth image yields f32.
// crbug.com/tint/439
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// ImageFetch on multisampled depth image.
{"%float 2D 1 0 1 1 Unknown",
"%99 = OpImageFetch %v4float %im %vi12 Sample %i1",
R"(@group(2) @binding(1) var x_20 : texture_depth_multisampled_2d;)",
R"(let x_99 : vec4<f32> = vec4<f32>(textureLoad(x_20, vi12, i1), 0.0, 0.0, 0.0);)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageFetch_Multisampled,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// SPIR-V requires a Sample image operand when operating on a
// multisampled image.
// ImageFetch arrayed
// Not in WebGPU
// ImageFetch non-arrayed
{"%float 2D 0 0 1 1 Unknown",
"%99 = OpImageFetch %v4float %im %vi12 Sample %i1",
R"(@group(2) @binding(1) var x_20 : texture_multisampled_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureLoad(x_20, vi12, i1);)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageFetch_Multisampled_ConvertSampleOperand,
SpvParserHandleTest_ImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
{"%float 2D 0 0 1 1 Unknown",
"%99 = OpImageFetch %v4float %im %vi12 Sample %u1",
R"(@group(2) @binding(1) var x_20 : texture_multisampled_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureLoad(x_20, vi12, i32(u1));)"}}));
INSTANTIATE_TEST_SUITE_P(
ConvertResultSignedness,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Valid SPIR-V only has:
// float scalar sampled type vs. floating result
// integral scalar sampled type vs. integral result
// Any of the sampling, reading, or fetching use the same codepath.
// We'll test with:
// OpImageFetch
// OpImageRead
// OpImageSampleImplicitLod - representative of sampling
//
// OpImageRead
//
// OpImageFetch requires no conversion, float -> v4float
{"%float 2D 0 0 0 1 Unknown", "%99 = OpImageFetch %v4float %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureLoad(x_20, vi12, 0);)"},
// OpImageFetch requires no conversion, uint -> v4uint
{"%uint 2D 0 0 0 1 Unknown", "%99 = OpImageFetch %v4uint %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<u32>;)",
R"(let x_99 : vec4<u32> = textureLoad(x_20, vi12, 0);)"},
// OpImageFetch requires conversion, uint -> v4int
// is invalid SPIR-V:
// "Expected Image 'Sampled Type' to be the same as Result Type
// components"
// OpImageFetch requires no conversion, int -> v4int
{"%int 2D 0 0 0 1 Unknown", "%99 = OpImageFetch %v4int %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<i32>;)",
R"(let x_99 : vec4<i32> = textureLoad(x_20, vi12, 0);)"},
// OpImageFetch requires conversion, int -> v4uint
// is invalid SPIR-V:
// "Expected Image 'Sampled Type' to be the same as Result Type
// components"
//
// OpImageRead
//
// OpImageRead requires no conversion, float -> v4float
{"%float 2D 0 0 0 2 Rgba32f", "%99 = OpImageRead %v4float %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureLoad(x_20, vi12, 0);)"},
// OpImageRead requires no conversion, uint -> v4uint
{"%uint 2D 0 0 0 2 Rgba32ui", "%99 = OpImageRead %v4uint %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<u32>;)",
R"(let x_99 : vec4<u32> = textureLoad(x_20, vi12, 0);)"},
// OpImageRead requires conversion, uint -> v4int
// is invalid SPIR-V:
// "Expected Image 'Sampled Type' to be the same as Result Type
// components"
// OpImageRead requires no conversion, int -> v4int
{"%int 2D 0 0 0 2 Rgba32i", "%99 = OpImageRead %v4int %im %vi12",
R"(@group(2) @binding(1) var x_20 : texture_2d<i32>;)",
R"(let x_99 : vec4<i32> = textureLoad(x_20, vi12, 0);)"},
// OpImageRead requires conversion, int -> v4uint
// is invalid SPIR-V:
// "Expected Image 'Sampled Type' to be the same as Result Type
// components"
//
// Sampling operations, using OpImageSampleImplicitLod as an example.
// WGSL sampling operations only work on textures with a float sampled
// component. So we can only test the float -> float (non-conversion)
// case.
// OpImageSampleImplicitLod requires no conversion, float -> v4float
{"%float 2D 0 0 0 1 Unknown",
"%99 = OpImageSampleImplicitLod %v4float %sampled_image %vf12",
R"(@group(0) @binding(0) var x_10 : sampler;
@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec4<f32> = textureSample(x_20, x_10, vf12);)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageQuerySize_NonArrayed_SignedResult,
// ImageQuerySize requires storage image or multisampled
// For storage image, use another instruction to indicate whether it
// is readonly or writeonly.
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// 1D storage image
{"%float 1D 0 0 0 2 Rgba32f",
"%99 = OpImageQuerySize %int %im \n"
"%98 = OpImageRead %v4float %im %i1\n", // Implicitly mark as
// NonWritable
R"(@group(2) @binding(1) var x_20 : texture_1d<f32>;)",
R"(let x_99 : i32 = i32(textureDimensions(x_20));)"},
// 2D storage image
{"%float 2D 0 0 0 2 Rgba32f",
"%99 = OpImageQuerySize %v2int %im \n"
"%98 = OpImageRead %v4float %im %vi12\n", // Implicitly mark as
// NonWritable
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec2<i32> = vec2<i32>(textureDimensions(x_20))"},
// 3D storage image
{"%float 3D 0 0 0 2 Rgba32f",
"%99 = OpImageQuerySize %v3int %im \n"
"%98 = OpImageRead %v4float %im %vi123\n", // Implicitly mark as
// NonWritable
R"(@group(2) @binding(1) var x_20 : texture_3d<f32>;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20));)"},
// Multisampled
{"%float 2D 0 0 1 1 Unknown", "%99 = OpImageQuerySize %v2int %im \n",
R"(@group(2) @binding(1) var x_20 : texture_multisampled_2d<f32>;)",
R"(let x_99 : vec2<i32> = vec2<i32>(textureDimensions(x_20));)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageQuerySize_Arrayed_SignedResult,
// ImageQuerySize requires storage image or multisampled
// For storage image, use another instruction to indicate whether it
// is readonly or writeonly.
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// 1D array storage image doesn't exist.
// 2D array storage image
{"%float 2D 0 1 0 2 Rgba32f",
"%99 = OpImageQuerySize %v3int %im \n"
"%98 = OpImageRead %v4float %im %vi123\n",
R"(@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20), textureNumLayers(x_20));)"}
// 3D array storage image doesn't exist.
// Multisampled array
// Not in WebGPU
}));
INSTANTIATE_TEST_SUITE_P(
ImageQuerySizeLod_NonArrayed_SignedResult_SignedLevel,
// From VUID-StandaloneSpirv-OpImageQuerySizeLod-04659:
// ImageQuerySizeLod requires Sampled=1
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// 1D
{"%float 1D 0 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_1d<f32>;)",
R"(let x_99 : i32 = i32(textureDimensions(x_20, i1)))"},
// 2D
{"%float 2D 0 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v2int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : vec2<i32> = vec2<i32>(textureDimensions(x_20, i1));)"},
// 3D
{"%float 3D 0 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v3int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_3d<f32>;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20, i1));)"},
// Cube
{"%float Cube 0 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v2int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_cube<f32>;)",
R"(let x_99 : vec2<i32> = vec2<i32>(textureDimensions(x_20, i1).xy);)"},
// Depth 2D
{"%float 2D 1 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v2int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d;)",
R"(let x_99 : vec2<i32> = vec2<i32>(textureDimensions(x_20, i1));)"},
// Depth Cube
{"%float Cube 1 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v2int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_cube;)",
R"(let x_99 : vec2<i32> = vec2<i32>(textureDimensions(x_20, i1).xy);)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageQuerySizeLod_Arrayed_SignedResult_SignedLevel,
// ImageQuerySize requires storage image or multisampled
// For storage image, use another instruction to indicate whether it
// is readonly or writeonly.
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// There is no 1D array
// 2D array
{"%float 2D 0 1 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v3int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20, i1), textureNumLayers(x_20));)"},
// There is no 3D array
// Cube array
//
// Currently textureDimension on cube returns vec3 but maybe should
// return vec2
// https://github.com/gpuweb/gpuweb/issues/1345
{"%float Cube 0 1 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v3int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_cube_array<f32>;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20, i1).xy, textureNumLayers(x_20));)"},
// Depth 2D array
{"%float 2D 1 1 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v3int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20, i1), textureNumLayers(x_20));)"},
// Depth Cube Array
//
// Currently textureDimension on cube returns vec3 but maybe should
// return vec2
// https://github.com/gpuweb/gpuweb/issues/1345
{"%float Cube 1 1 0 1 Unknown",
"%99 = OpImageQuerySizeLod %v3int %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_cube_array;)",
R"(let x_99 : vec3<i32> = vec3<i32>(textureDimensions(x_20, i1).xy, textureNumLayers(x_20));)"}}));
INSTANTIATE_TEST_SUITE_P(
// When the level-of-detail value is given as an unsigned
// integer, we must convert it before using it as an argument
// to textureDimensions.
ImageQuerySizeLod_NonArrayed_SignedResult_UnsignedLevel,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
{"%float 1D 0 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %int %im %u1\n",
R"(@group(2) @binding(1) var x_20 : texture_1d<f32>;)",
R"(let x_99 : i32 = i32(textureDimensions(x_20, i32(u1)));)"}}));
INSTANTIATE_TEST_SUITE_P(
// When SPIR-V wants the result type to be unsigned, we have to
// insert a type constructor or bitcast for WGSL to do the type
// coercion. But the algorithm already does that as a matter
// of course.
ImageQuerySizeLod_NonArrayed_UnsignedResult_SignedLevel,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
{"%float 1D 0 0 0 1 Unknown",
"%99 = OpImageQuerySizeLod %uint %im %i1\n",
R"(@group(2) @binding(1) var x_20 : texture_1d<f32>;)",
R"(let x_99 : u32 = u32(textureDimensions(x_20, i1));)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageQueryLevels_SignedResult,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// In Vulkan:
// Dim must be 1D, 2D, 3D, Cube
// WGSL allows 2d, 2d_array, 3d, cube, cube_array
// depth_2d, depth_2d_array, depth_cube, depth_cube_array
// 2D
{"%float 2D 0 0 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// 2D array
{"%float 2D 0 1 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_2d_array<f32>;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// 3D
{"%float 3D 0 0 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_3d<f32>;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// Cube
{"%float Cube 0 0 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_cube<f32>;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// Cube array
{"%float Cube 0 1 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_cube_array<f32>;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// depth 2d
{"%float 2D 1 0 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// depth 2d array
{"%float 2D 1 1 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_2d_array;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// depth cube
{"%float Cube 1 0 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_cube;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"},
// depth cube array
{"%float Cube 1 1 0 1 Unknown", "%99 = OpImageQueryLevels %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_depth_cube_array;)",
R"(let x_99 : i32 = textureNumLevels(x_20);)"}}));
INSTANTIATE_TEST_SUITE_P(
// Spot check that a type conversion is inserted when SPIR-V asks for
// an unsigned int result.
ImageQueryLevels_UnsignedResult,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
{"%float 2D 0 0 0 1 Unknown", "%99 = OpImageQueryLevels %uint %im\n",
R"(@group(2) @binding(1) var x_20 : texture_2d<f32>;)",
R"(let x_99 : u32 = u32(textureNumLevels(x_20));)"}}));
INSTANTIATE_TEST_SUITE_P(
ImageQuerySamples_SignedResult,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Multsample 2D
{"%float 2D 0 0 1 1 Unknown", "%99 = OpImageQuerySamples %int %im\n",
R"(@group(2) @binding(1) var x_20 : texture_multisampled_2d<f32>;)",
R"(let x_99 : i32 = textureNumSamples(x_20);)"} // namespace
// Multisample 2D array
// Not in WebGPU
}));
INSTANTIATE_TEST_SUITE_P(
// Translation must inject a type coersion from signed to unsigned.
ImageQuerySamples_UnsignedResult,
SpvParserHandleTest_SampledImageAccessTest,
::testing::ValuesIn(std::vector<ImageAccessCase>{
// Multsample 2D
{"%float 2D 0 0 1 1 Unknown", "%99 = OpImageQuerySamples %uint %im\n",
R"(@group(2) @binding(1) var x_20 : texture_multisampled_2d<f32>;)",
R"(let x_99 : u32 = u32(textureNumSamples(x_20));)"}
// Multisample 2D array
// Not in WebGPU
}));
struct ImageCoordsCase {
// SPIR-V image type, excluding result ID and opcode
std::string spirv_image_type_details;
std::string spirv_image_access;
std::string expected_error;
std::vector<std::string> expected_expressions;
};
inline std::ostream& operator<<(std::ostream& out, const ImageCoordsCase& c) {
out << "ImageCoordsCase(" << c.spirv_image_type_details << "\n"
<< c.spirv_image_access << "\n"
<< "expected_error(" << c.expected_error << ")\n";
for (auto e : c.expected_expressions) {
out << e << ",";
}
out << ")" << std::endl;
return out;
}
using SpvParserHandleTest_ImageCoordsTest =
SpvParserTestBase<::testing::TestWithParam<ImageCoordsCase>>;
TEST_P(SpvParserHandleTest_ImageCoordsTest,
MakeCoordinateOperandsForImageAccess) {
// Only declare the sampled image type, and the associated variable
// if the requested image type is a sampled image type and not multisampled.
const bool is_sampled_image_type = GetParam().spirv_image_type_details.find(
"0 1 Unknown") != std::string::npos;
const auto assembly =
Preamble() + R"(
OpEntryPoint Fragment %100 "main"
OpExecutionMode %100 OriginUpperLeft
OpName %float_var "float_var"
OpName %ptr_float "ptr_float"
OpName %i1 "i1"
OpName %vi12 "vi12"
OpName %vi123 "vi123"
OpName %vi1234 "vi1234"
OpName %u1 "u1"
OpName %vu12 "vu12"
OpName %vu123 "vu123"
OpName %vu1234 "vu1234"
OpName %f1 "f1"
OpName %vf12 "vf12"
OpName %vf123 "vf123"
OpName %vf1234 "vf1234"
OpDecorate %10 DescriptorSet 0
OpDecorate %10 Binding 0
OpDecorate %20 DescriptorSet 2
OpDecorate %20 Binding 1
OpDecorate %30 DescriptorSet 0
OpDecorate %30 Binding 1
)" + CommonBasicTypes() +
R"(
%sampler = OpTypeSampler
%ptr_sampler = OpTypePointer UniformConstant %sampler
%im_ty = OpTypeImage )" +
GetParam().spirv_image_type_details + R"(
%ptr_im_ty = OpTypePointer UniformConstant %im_ty
)" + (is_sampled_image_type ? " %si_ty = OpTypeSampledImage %im_ty " : "") +
R"(
%ptr_float = OpTypePointer Function %float
%10 = OpVariable %ptr_sampler UniformConstant
%20 = OpVariable %ptr_im_ty UniformConstant
%30 = OpVariable %ptr_sampler UniformConstant ; comparison sampler, when needed
%100 = OpFunction %void None %voidfn
%entry = OpLabel
%float_var = OpVariable %ptr_float Function
%i1 = OpCopyObject %int %int_1
%vi12 = OpCopyObject %v2int %the_vi12
%vi123 = OpCopyObject %v3int %the_vi123
%vi1234 = OpCopyObject %v4int %the_vi1234
%u1 = OpCopyObject %uint %uint_1
%vu12 = OpCopyObject %v2uint %the_vu12
%vu123 = OpCopyObject %v3uint %the_vu123
%vu1234 = OpCopyObject %v4uint %the_vu1234
%f1 = OpCopyObject %float %float_1
%vf12 = OpCopyObject %v2float %the_vf12
%vf123 = OpCopyObject %v3float %the_vf123
%vf1234 = OpCopyObject %v4float %the_vf1234
%sam = OpLoad %sampler %10
%im = OpLoad %im_ty %20
)" +
(is_sampled_image_type
? " %sampled_image = OpSampledImage %si_ty %im %sam "
: "") +
GetParam().spirv_image_access +
R"(
; Use an anchor for the cases when the image access doesn't have a result ID.
%1000 = OpCopyObject %uint %uint_0
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
if (!p->BuildAndParseInternalModule()) {
EXPECT_THAT(p->error(), StartsWith(GetParam().expected_error)) << assembly;
} else {
EXPECT_TRUE(p->error().empty()) << p->error();
auto fe = p->function_emitter(100);
// We actually have to generate the module to cache expressions for the
// result IDs, particularly the OpCopyObject
fe.Emit();
const spvtools::opt::Instruction* anchor = p->GetInstructionForTest(1000);
ASSERT_NE(anchor, nullptr);
const spvtools::opt::Instruction& image_access = *(anchor->PreviousNode());
ast::ExpressionList result =
fe.MakeCoordinateOperandsForImageAccess(image_access);
if (GetParam().expected_error.empty()) {
EXPECT_TRUE(fe.success()) << p->error();
EXPECT_TRUE(p->error().empty());
std::vector<std::string> result_strings;
Program program = p->program();
for (auto* expr : result) {
ASSERT_NE(expr, nullptr);
result_strings.push_back(test::ToString(program, expr));
}
EXPECT_THAT(result_strings,
::testing::ContainerEq(GetParam().expected_expressions));
} else {
EXPECT_FALSE(fe.success());
EXPECT_THAT(p->error(), Eq(GetParam().expected_error)) << assembly;
EXPECT_TRUE(result.empty());
}
}
const bool is_sample_level =
GetParam().spirv_image_access.find("ImageSampleExplicitLod") !=
std::string::npos;
const bool is_comparison_sample_level =
GetParam().spirv_image_access.find("ImageSampleDrefExplicitLod") !=
std::string::npos;
const bool is_1d =
GetParam().spirv_image_type_details.find("1D") != std::string::npos;
if (is_sample_level && is_1d) {
p->SkipDumpingPending("crbug.com/tint/789");
}
if (is_comparison_sample_level) {
p->SkipDumpingPending("crbug.com/tint/425");
}
}
INSTANTIATE_TEST_SUITE_P(Good_1D,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %f1",
"",
{"f1"}},
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf12", // one excess arg
"",
{"vf12.x"}},
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf123", // two excess args
"",
{"vf123.x"}},
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf1234", // three excess args
"",
{"vf1234.x"}}}));
INSTANTIATE_TEST_SUITE_P(Good_1DArray,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 1D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf12",
"",
{"vf12.x", "i32(round(vf12.y))"}},
{"%float 1D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf123", // one excess arg
"",
{"vf123.x", "i32(round(vf123.y))"}},
{"%float 1D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf1234", // two excess args
"",
{"vf1234.x", "i32(round(vf1234.y))"}}}));
INSTANTIATE_TEST_SUITE_P(Good_2D,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf12",
"",
{"vf12"}},
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf123", // one excess arg
"",
{"vf123.xy"}},
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf1234", // two excess args
"",
{"vf1234.xy"}}}));
INSTANTIATE_TEST_SUITE_P(Good_2DArray,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf123",
"",
{"vf123.xy", "i32(round(vf123.z))"}},
{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float "
"%sampled_image %vf1234", // one excess arg
"",
{"vf1234.xy", "i32(round(vf1234.z))"}}}));
INSTANTIATE_TEST_SUITE_P(Good_3D,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 3D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float "
"%sampled_image %vf123",
"",
{"vf123"}},
{"%float 3D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float "
"%sampled_image %vf1234", // one excess
// arg
"",
{"vf1234.xyz"}}}));
INSTANTIATE_TEST_SUITE_P(Good_Cube,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float Cube 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float "
"%sampled_image %vf123",
"",
{"vf123"}},
{"%float Cube 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float "
"%sampled_image %vf1234", // one excess
// arg
"",
{"vf1234.xyz"}}}));
INSTANTIATE_TEST_SUITE_P(Good_CubeArray,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float Cube 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
"%v4float "
"%sampled_image %vf1234",
"",
{"vf1234.xyz", "i32(round(vf1234.w))"}}}));
INSTANTIATE_TEST_SUITE_P(
PreserveFloatCoords_NonArrayed,
// In SPIR-V, sampling and dref sampling operations use floating point
// coordinates. Prove that we preserve floating point-ness.
// Test across all such instructions.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// Scalar cases
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float %sampled_image %f1",
"",
{"f1"}},
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4float %sampled_image %f1 Lod "
"%f1",
"",
{"f1"}},
// WGSL does not support depth textures with 1D coordinates
// Vector cases
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float %sampled_image %vf12",
"",
{"vf12"}},
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4float %sampled_image %vf12 Lod "
"%f1",
"",
{"vf12"}},
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %float %sampled_image %vf12 "
"%depth",
"",
{"vf12"}},
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image %vf12 "
"%depth Lod %float_0",
"",
{"vf12"}},
}));
INSTANTIATE_TEST_SUITE_P(
PreserveFloatCoords_Arrayed,
// In SPIR-V, sampling and dref sampling operations use floating point
// coordinates. Prove that we preserve floating point-ness of the
// coordinate part, but convert the array index to signed integer. Test
// across all such instructions.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float %sampled_image %vf123",
"",
{"vf123.xy", "i32(round(vf123.z))"}},
{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4float %sampled_image %vf123 "
"Lod %f1",
"",
{"vf123.xy", "i32(round(vf123.z))"}},
{"%float 2D 1 1 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %float %sampled_image "
"%vf123 %depth",
"",
{"vf123.xy", "i32(round(vf123.z))"}},
{"%float 2D 1 1 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image "
"%vf123 %depth Lod %float_0",
"",
{"vf123.xy", "i32(round(vf123.z))"}}}));
INSTANTIATE_TEST_SUITE_P(
PreserveIntCoords_NonArrayed,
// In SPIR-V, image read, fetch, and write use integer coordinates.
// Prove that we preserve signed integer coordinates.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// Scalar cases
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageFetch %v4float %im %i1",
"",
{"i1"}},
{"%float 1D 0 0 0 2 R32f",
"%result = OpImageRead %v4float %im %i1",
"",
{"i1"}},
{"%float 1D 0 0 0 2 R32f", "OpImageWrite %im %i1 %vf1234", "", {"i1"}},
// Vector cases
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageFetch %v4float %im %vi12",
"",
{"vi12"}},
{"%float 2D 0 0 0 2 R32f",
"%result = OpImageRead %v4float %im %vi12",
"",
{"vi12"}},
{"%float 2D 0 0 0 2 R32f",
"OpImageWrite %im %vi12 %vf1234",
"",
{"vi12"}}}));
INSTANTIATE_TEST_SUITE_P(
PreserveIntCoords_Arrayed,
// In SPIR-V, image read, fetch, and write use integer coordinates.
// Prove that we preserve signed integer coordinates.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageFetch %v4float %im %vi123",
"",
{"vi123.xy", "vi123.z"}},
{"%float 2D 0 1 0 2 R32f",
"%result = OpImageRead %v4float %im %vi123",
"",
{"vi123.xy", "vi123.z"}},
{"%float 2D 0 1 0 2 R32f",
"OpImageWrite %im %vi123 %vf1234",
"",
{"vi123.xy", "vi123.z"}}}));
INSTANTIATE_TEST_SUITE_P(
ConvertUintCoords_NonArrayed,
// In SPIR-V, image read, fetch, and write use integer coordinates.
// Prove that we convert unsigned integer coordinates to signed.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// Scalar cases
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageFetch %v4float %im %u1",
"",
{"i32(u1)"}},
{"%float 1D 0 0 0 2 R32f",
"%result = OpImageRead %v4float %im %u1",
"",
{"i32(u1)"}},
{"%float 1D 0 0 0 2 R32f",
"OpImageWrite %im %u1 %vf1234",
"",
{"i32(u1)"}},
// Vector cases
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageFetch %v4float %im %vu12",
"",
{"vec2<i32>(vu12)"}},
{"%float 2D 0 0 0 2 R32f",
"%result = OpImageRead %v4float %im %vu12",
"",
{"vec2<i32>(vu12)"}},
{"%float 2D 0 0 0 2 R32f",
"OpImageWrite %im %vu12 %vf1234",
"",
{"vec2<i32>(vu12)"}}}));
INSTANTIATE_TEST_SUITE_P(
ConvertUintCoords_Arrayed,
// In SPIR-V, image read, fetch, and write use integer coordinates.
// Prove that we convert unsigned integer coordinates to signed.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 1 0 1 Unknown",
"%result = OpImageFetch %v4float %im %vu123",
"",
{"vec2<i32>(vu123.xy)", "i32(vu123.z)"}},
{"%float 2D 0 1 0 2 R32f",
"%result = OpImageRead %v4float %im %vu123",
"",
{"vec2<i32>(vu123.xy)", "i32(vu123.z)"}},
{"%float 2D 0 1 0 2 R32f",
"OpImageWrite %im %vu123 %vf1234",
"",
{"vec2<i32>(vu123.xy)", "i32(vu123.z)"}}}));
INSTANTIATE_TEST_SUITE_P(
BadInstructions,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 1D 0 0 0 1 Unknown",
"OpNop",
"not an image access instruction: OpNop",
{}},
{"%float 1D 0 0 0 1 Unknown",
"%50 = OpCopyObject %float %float_1",
"internal error: couldn't find image for "
"%50 = OpCopyObject %18 %45",
{}},
{"%float 1D 0 0 0 1 Unknown",
"OpStore %float_var %float_1",
"invalid type for image or sampler "
"variable or function parameter: %1 = OpVariable %2 Function",
{}},
// An example with a missing coordinate
// won't assemble, so we skip it.
}));
INSTANTIATE_TEST_SUITE_P(
Bad_Coordinate,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod "
// bad type for coordinate: not a number
"%v4float %sampled_image %float_var",
"bad or unsupported coordinate type for image access: %73 = "
"OpImageSampleImplicitLod %42 %72 %1",
{}},
{"%float 2D 0 0 0 1 Unknown", // 2D
"%result = OpImageSampleImplicitLod "
// 1 component, but need 2
"%v4float %sampled_image %f1",
"image access required 2 coordinate components, but only 1 provided, "
"in: %73 = OpImageSampleImplicitLod %42 %72 %12",
{}},
{"%float 2D 0 1 0 1 Unknown", // 2DArray
"%result = OpImageSampleImplicitLod "
// 2 component, but need 3
"%v4float %sampled_image %vf12",
"image access required 3 coordinate components, but only 2 provided, "
"in: %73 = OpImageSampleImplicitLod %42 %72 %13",
{}},
{"%float 3D 0 0 0 1 Unknown", // 3D
"%result = OpImageSampleImplicitLod "
// 2 components, but need 3
"%v4float %sampled_image %vf12",
"image access required 3 coordinate components, but only 2 provided, "
"in: %73 = OpImageSampleImplicitLod %42 %72 %13",
{}},
}));
INSTANTIATE_TEST_SUITE_P(
SampleNonFloatTexture_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// ImageSampleImplicitLod
{"%uint 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4uint %sampled_image %vf12",
"sampled image must have float component type",
{}},
{"%int 2D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4int %sampled_image %vf12",
"sampled image must have float component type",
{}},
// ImageSampleExplicitLod
{"%uint 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4uint %sampled_image %vf12 "
"Lod %f1",
"sampled image must have float component type",
{}},
{"%int 2D 0 0 0 1 Unknown",
"%result = OpImageSampleExplicitLod %v4int %sampled_image %vf12 "
"Lod %f1",
"sampled image must have float component type",
{}},
// ImageSampleDrefImplicitLod
{"%uint 2D 0 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %uint %sampled_image %vf12 "
"%f1",
"sampled image must have float component type",
{}},
{"%int 2D 0 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %int %sampled_image %vf12 "
"%f1",
"sampled image must have float component type",
{}},
// ImageSampleDrefExplicitLod
{"%uint 2D 0 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %uint %sampled_image %vf12 "
"%f1 Lod %float_0",
"sampled image must have float component type",
{}},
{"%int 2D 0 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %int %sampled_image %vf12 "
"%f1 Lod %float_0",
"sampled image must have float component type",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ConstOffset_BadInstruction_Errors,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// ImageFetch
{"%uint 2D 0 0 0 1 Unknown",
"%result = OpImageFetch %v4uint %sampled_image %vf12 ConstOffset "
"%the_vu12",
"ConstOffset is only permitted for sampling, gather, or "
"depth-reference gather operations: ",
{}},
// ImageRead
{"%uint 2D 0 0 0 2 Rgba32ui",
"%result = OpImageRead %v4uint %im %vu12 ConstOffset %the_vu12",
"ConstOffset is only permitted for sampling, gather, or "
"depth-reference gather operations: ",
{}},
// ImageWrite
{"%uint 2D 0 0 0 2 Rgba32ui",
"OpImageWrite %im %vu12 %vu1234 ConstOffset %the_vu12",
"ConstOffset is only permitted for sampling, gather, or "
"depth-reference gather operations: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ConstOffset_BadDim_Errors,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// 1D
{"%uint 1D 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float %sampled_image %vf1234 "
"ConstOffset %the_vu12",
"ConstOffset is only permitted for 2D, 2D Arrayed, and 3D textures: ",
{}},
// Cube
{"%uint Cube 0 0 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float %sampled_image %vf1234 "
"ConstOffset %the_vu12",
"ConstOffset is only permitted for 2D, 2D Arrayed, and 3D textures: ",
{}},
// Cube Array
{"%uint Cube 0 1 0 1 Unknown",
"%result = OpImageSampleImplicitLod %v4float %sampled_image %vf1234 "
"ConstOffset %the_vu12",
"ConstOffset is only permitted for 2D, 2D Arrayed, and 3D textures: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleDref_Bias_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// Implicit Lod
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %float %sampled_image %vf1234 "
"%depth Bias %float_null",
"WGSL does not support depth-reference sampling with level-of-detail "
"bias: ",
{}},
// Explicit Lod
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image %vf1234 "
"%depth Lod|Bias %float_null %float_null",
"WGSL does not support depth-reference sampling with level-of-detail "
"bias: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleDref_Grad_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// Implicit Lod
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefImplicitLod %float %sampled_image %vf1234 "
"%depth Grad %float_1 %float_2",
"WGSL does not support depth-reference sampling with explicit "
"gradient: ",
{}},
// Explicit Lod
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image %vf1234 "
"%depth Lod|Grad %float_null %float_1 %float_2",
"WGSL does not support depth-reference sampling with explicit "
"gradient: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleDrefExplicitLod_CheckForLod0,
// Metal requires comparison sampling with explicit Level-of-detail to use
// Lod 0. The SPIR-V reader requires the operand to be parsed as a constant
// 0 value. SPIR-V validation requires the Lod parameter to be a floating
// point value for non-fetch operations. So only test float values.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// float 0.0 works
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image %vf1234 "
"%depth Lod %float_0",
"",
{"vf1234.xy"}},
// float null works
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image %vf1234 "
"%depth Lod %float_0",
"",
{"vf1234.xy"}},
// float 1.0 fails.
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleDrefExplicitLod %float %sampled_image %vf1234 "
"%depth Lod %float_1",
"WGSL comparison sampling without derivatives requires "
"level-of-detail "
"0.0",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageSampleProjDrefExplicitLod_CheckForLod0,
// This is like the previous test, but for Projection sampling.
//
// Metal requires comparison sampling with explicit Level-of-detail to use
// Lod 0. The SPIR-V reader requires the operand to be parsed as a constant
// 0 value. SPIR-V validation requires the Lod parameter to be a floating
// point value for non-fetch operations. So only test float values.
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
// float 0.0 works
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefExplicitLod %float %sampled_image "
"%vf1234 %depth Lod %float_0",
"",
{"(vf1234.xy / vf1234.z)"}},
// float null works
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefExplicitLod %float %sampled_image "
"%vf1234 %depth Lod %float_0",
"",
{"(vf1234.xy / vf1234.z)"}},
// float 1.0 fails.
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageSampleProjDrefExplicitLod %float %sampled_image "
"%vf1234 %depth Lod %float_1",
"WGSL comparison sampling without derivatives requires "
"level-of-detail "
"0.0",
{}}}));
TEST_F(SpvParserHandleTest, CombinedImageSampler_IsError) {
const auto assembly = Preamble() + R"(
OpEntryPoint Fragment %100 "main"
OpExecutionMode %100 OriginUpperLeft
OpDecorate %var DescriptorSet 0
OpDecorate %var Binding 0
%float = OpTypeFloat 32
%im = OpTypeImage %float 2D 0 0 0 1 Unknown
%si = OpTypeSampledImage %im
%ptr_si = OpTypePointer UniformConstant %si
%var = OpVariable %ptr_si UniformConstant
%void = OpTypeVoid
%voidfn = OpTypeFunction %void
%100 = OpFunction %void None %voidfn
%entry = OpLabel
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
EXPECT_FALSE(p->BuildAndParseInternalModule()) << assembly;
EXPECT_THAT(p->error(),
HasSubstr("WGSL does not support combined image-samplers: "));
}
INSTANTIATE_TEST_SUITE_P(
ImageQueryLod_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageQueryLod %v2int %sampled_image %vf12",
"WGSL does not support querying the level of detail of an image: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageGather_Bias_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageGather %v4float %sampled_image %vf12 %int_1 "
"Bias %float_null",
"WGSL does not support image gather with level-of-detail bias: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageDrefGather_Bias_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageDrefGather %v4float %sampled_image %vf12 %depth "
"Bias %float_null",
"WGSL does not support image gather with level-of-detail bias: ",
{}}}));
// Note: Vulkan SPIR-V ImageGather and ImageDrefGather do not allow explicit
// Lod. The SPIR-V validator should reject those cases already.
INSTANTIATE_TEST_SUITE_P(
ImageGather_Grad_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 0 0 0 1 Unknown",
"%result = OpImageGather %v4float %sampled_image %vf12 %int_1 "
"Grad %vf12 %vf12",
"WGSL does not support image gather with explicit gradient: ",
{}}}));
INSTANTIATE_TEST_SUITE_P(
ImageDrefGather_Grad_IsError,
SpvParserHandleTest_ImageCoordsTest,
::testing::ValuesIn(std::vector<ImageCoordsCase>{
{"%float 2D 1 0 0 1 Unknown",
"%result = OpImageDrefGather %v4float %sampled_image %vf12 %depth "
"Grad %vf12 %vf12",
"WGSL does not support image gather with explicit gradient: ",
{}}}));
TEST_F(SpvParserHandleTest,
NeverGenerateConstDeclForHandle_UseVariableDirectly) {
// An ad-hoc test to prove we never had the issue
// feared in crbug.com/tint/265.
// Never create a const-declaration for a pointer to
// a texture or sampler. Code generation always
// traces back to the memory object declaration.
const auto assembly = Preamble() + R"(
OpEntryPoint Fragment %100 "main"
OpExecutionMode %100 OriginUpperLeft
OpName %var "var"
OpDecorate %var_im DescriptorSet 0
OpDecorate %var_im Binding 0
OpDecorate %var_s DescriptorSet 0
OpDecorate %var_s Binding 1
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%v2float = OpTypeVector %float 2
%v2_0 = OpConstantNull %v2float
%im = OpTypeImage %float 2D 0 0 0 1 Unknown
%si = OpTypeSampledImage %im
%s = OpTypeSampler
%ptr_im = OpTypePointer UniformConstant %im
%ptr_s = OpTypePointer UniformConstant %s
%var_im = OpVariable %ptr_im UniformConstant
%var_s = OpVariable %ptr_s UniformConstant
%void = OpTypeVoid
%voidfn = OpTypeFunction %void
%ptr_v4 = OpTypePointer Function %v4float
%100 = OpFunction %void None %voidfn
%entry = OpLabel
%var = OpVariable %ptr_v4 Function
; Try to induce generating a const-declaration of a pointer to
; a sampler or texture.
%var_im_copy = OpCopyObject %ptr_im %var_im
%var_s_copy = OpCopyObject %ptr_s %var_s
%im0 = OpLoad %im %var_im_copy
%s0 = OpLoad %s %var_s_copy
%si0 = OpSampledImage %si %im0 %s0
%t0 = OpImageSampleImplicitLod %v4float %si0 %v2_0
%im1 = OpLoad %im %var_im_copy
%s1 = OpLoad %s %var_s_copy
%si1 = OpSampledImage %si %im1 %s1
%t1 = OpImageSampleImplicitLod %v4float %si1 %v2_0
%sum = OpFAdd %v4float %t0 %t1
OpStore %var %sum
OpReturn
OpFunctionEnd
)";
auto p = parser(test::Assemble(assembly));
EXPECT_TRUE(p->BuildAndParseInternalModule()) << assembly;
auto fe = p->function_emitter(100);
EXPECT_TRUE(fe.EmitBody()) << p->error();
EXPECT_TRUE(p->error().empty()) << p->error();
auto ast_body = fe.ast_body();
const auto got = test::ToString(p->program(), ast_body);
auto* expect = R"(var var_1 : vec4<f32>;
let x_22 : vec4<f32> = textureSample(x_2, x_3, vec2<f32>());
let x_26 : vec4<f32> = textureSample(x_2, x_3, vec2<f32>());
var_1 = (x_22 + x_26);
return;
)";
ASSERT_EQ(expect, got);
}
} // namespace
} // namespace spirv
} // namespace reader
} // namespace tint