SPIRV-Tools/test/opt/legalize_vector_shuffle_test.cpp
Ryan Harrison 048dcd38ce
Implement WebGPU->Vulkan initializer conversion for 'Function' variables (#2513)
WebGPU requires certain variables to be initialized, whereas there are
known issues with using initializers in Vulkan. This PR is the first
of three implementing a pass to decompose initialized variables into
a variable declaration followed by a store. This has been broken up
into multiple PRs, because there 3 distinct cases that need to be
handled, which require separate implementations.

This first PR implements the basic infrastructure that is needed, and
handling of Function storage class variables. Private and Output will
be handled in future PRs.

This is part of resolving #2388
2019-04-16 14:31:36 -04:00

82 lines
2.7 KiB
C++

// Copyright (c) 2019 Google LLC.
//
// 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 <vector>
#include "test/opt/pass_fixture.h"
#include "test/opt/pass_utils.h"
namespace spvtools {
namespace opt {
namespace {
using LegalizeVectorShuffleTest = PassTest<::testing::Test>;
void operator+=(std::vector<const char*>& lhs, const char* rhs) {
lhs.push_back(rhs);
}
void operator+=(std::vector<const char*>& lhs,
const std::vector<const char*> rhs) {
for (auto elem : rhs) lhs.push_back(elem);
}
std::vector<const char*> header = {
"OpCapability Shader",
"OpCapability VulkanMemoryModelKHR",
"OpExtension \"SPV_KHR_vulkan_memory_model\"",
"OpMemoryModel Logical VulkanKHR",
"OpEntryPoint Vertex %1 \"shader\"",
"%uint = OpTypeInt 32 0",
"%v3uint = OpTypeVector %uint 3"};
std::string GetTestString(const char* shuffle) {
std::vector<const char*> result = header;
result += {"%_ptr_Function_v3uint = OpTypePointer Function %v3uint",
"%void = OpTypeVoid",
"%6 = OpTypeFunction %void",
"%1 = OpFunction %void None %6",
"%7 = OpLabel",
"%8 = OpVariable %_ptr_Function_v3uint Function",
"%9 = OpLoad %v3uint %8",
"%10 = OpLoad %v3uint %8"};
result += shuffle;
result += {"OpReturn", "OpFunctionEnd"};
return JoinAllInsts(result);
}
TEST_F(LegalizeVectorShuffleTest, Changed) {
std::string input =
GetTestString("%11 = OpVectorShuffle %v3uint %9 %10 2 1 0xFFFFFFFF");
std::string expected =
GetTestString("%11 = OpVectorShuffle %v3uint %9 %10 2 1 0");
SinglePassRunAndCheck<LegalizeVectorShufflePass>(input, expected,
/* skip_nop = */ false);
}
TEST_F(LegalizeVectorShuffleTest, FunctionUnchanged) {
std::string input =
GetTestString("%11 = OpVectorShuffle %v3uint %9 %10 2 1 0");
std::string expected =
GetTestString("%11 = OpVectorShuffle %v3uint %9 %10 2 1 0");
SinglePassRunAndCheck<LegalizeVectorShufflePass>(input, expected,
/* skip_nop = */ false);
}
} // namespace
} // namespace opt
} // namespace spvtools