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// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/spirv/writer/common/helper_test.h"
#include "gmock/gmock.h"
namespace tint::spirv::writer {
namespace {
using namespace tint::core::number_suffixes; // NOLINT
TEST_F(SpirvWriterTest, ModuleHeader) {
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("OpCapability Shader");
EXPECT_INST("OpMemoryModel Logical GLSL450");
}
TEST_F(SpirvWriterTest, ModuleHeader_VulkanMemoryModel) {
Options opts;
opts.use_vulkan_memory_model = true;
ASSERT_TRUE(Generate(opts)) << Error() << output_;
EXPECT_INST("OpExtension \"SPV_KHR_vulkan_memory_model\"");
EXPECT_INST("OpCapability VulkanMemoryModel");
EXPECT_INST("OpCapability VulkanMemoryModelDeviceScope");
EXPECT_INST("OpMemoryModel Logical Vulkan");
}
TEST_F(SpirvWriterTest, Unreachable) {
auto* func = b.Function("foo", ty.void_());
b.Append(func->Block(), [&] {
auto* loop = b.Loop();
b.Append(loop->Body(), [&] {
auto* ifelse = b.If(true);
b.Append(ifelse->True(), [&] { //
b.Continue(loop);
});
b.Append(ifelse->False(), [&] { //
b.Continue(loop);
});
b.Unreachable();
b.Append(loop->Continuing(), [&] { //
b.NextIteration(loop);
});
});
b.Return(func);
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%foo = OpFunction %void None %3
%4 = OpLabel
OpBranch %7
%7 = OpLabel
OpLoopMerge %8 %6 None
OpBranch %5
%5 = OpLabel
OpSelectionMerge %9 None
OpBranchConditional %true %10 %11
%10 = OpLabel
OpBranch %6
%11 = OpLabel
OpBranch %6
%9 = OpLabel
OpUnreachable
%6 = OpLabel
OpBranch %7
%8 = OpLabel
OpReturn
OpFunctionEnd
)");
}
// Test that we fail gracefully when a function has too many parameters.
// See crbug.com/354748060.
TEST_F(SpirvWriterTest, TooManyFunctionParameters) {
Vector<core::ir::FunctionParam*, 256> params;
for (uint32_t i = 0; i < 256; i++) {
params.Push(b.FunctionParam(ty.i32()));
}
auto* func = b.Function("foo", ty.void_());
func->SetParams(std::move(params));
b.Append(func->Block(), [&] { //
b.Return(func);
});
EXPECT_FALSE(Generate());
EXPECT_THAT(Error(),
testing::HasSubstr(
"Function 'foo' has more than 255 parameters after running Tint transforms"));
}
} // namespace
} // namespace tint::spirv::writer