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// Copyright 2023 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/lang/spirv/writer/common/helper_test.h"
namespace tint::spirv::writer {
namespace {
using namespace tint::core::fluent_types; // NOLINT
using namespace tint::core::number_suffixes; // NOLINT
/// A parameterized test case.
struct ConvertCase {
/// The input type.
TestElementType in;
/// The output type.
TestElementType out;
/// The expected SPIR-V instruction.
std::string spirv_inst;
/// The expected SPIR-V result type name.
std::string spirv_type_name;
};
std::string PrintCase(testing::TestParamInfo<ConvertCase> cc) {
StringStream ss;
ss << cc.param.in << "_to_" << cc.param.out;
return ss.str();
}
using Convert = SpirvWriterTestWithParam<ConvertCase>;
TEST_P(Convert, Scalar) {
auto& params = GetParam();
auto* func = b.Function("foo", MakeScalarType(params.out));
func->SetParams({b.FunctionParam("arg", MakeScalarType(params.in))});
b.Append(func->Block(), [&] {
auto* result = b.Convert(MakeScalarType(params.out), func->Params()[0]);
b.Return(func, result);
mod.SetName(result, "result");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%result = " + params.spirv_inst + " %" + params.spirv_type_name + " %arg");
}
TEST_P(Convert, Vector) {
auto& params = GetParam();
auto* func = b.Function("foo", MakeVectorType(params.out));
func->SetParams({b.FunctionParam("arg", MakeVectorType(params.in))});
b.Append(func->Block(), [&] {
auto* result = b.Convert(MakeVectorType(params.out), func->Params()[0]);
b.Return(func, result);
mod.SetName(result, "result");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST("%result = " + params.spirv_inst + " %v2" + params.spirv_type_name + " %arg");
}
INSTANTIATE_TEST_SUITE_P(SpirvWriterTest,
Convert,
testing::Values(
// To f32.
ConvertCase{kF16, kF32, "OpFConvert", "float"},
ConvertCase{kI32, kF32, "OpConvertSToF", "float"},
ConvertCase{kU32, kF32, "OpConvertUToF", "float"},
ConvertCase{kBool, kF32, "OpSelect", "float"},
// To f16.
ConvertCase{kF32, kF16, "OpFConvert", "half"},
ConvertCase{kI32, kF16, "OpConvertSToF", "half"},
ConvertCase{kU32, kF16, "OpConvertUToF", "half"},
ConvertCase{kBool, kF16, "OpSelect", "half"},
// To i32.
ConvertCase{kF32, kI32, "OpConvertFToS", "int"},
ConvertCase{kF16, kI32, "OpConvertFToS", "int"},
ConvertCase{kU32, kI32, "OpBitcast", "int"},
ConvertCase{kBool, kI32, "OpSelect", "int"},
// To u32.
ConvertCase{kF32, kU32, "OpConvertFToU", "uint"},
ConvertCase{kF16, kU32, "OpConvertFToU", "uint"},
ConvertCase{kI32, kU32, "OpBitcast", "uint"},
ConvertCase{kBool, kU32, "OpSelect", "uint"},
// To bool.
ConvertCase{kF32, kBool, "OpFUnordNotEqual", "bool"},
ConvertCase{kF16, kBool, "OpFUnordNotEqual", "bool"},
ConvertCase{kI32, kBool, "OpINotEqual", "bool"},
ConvertCase{kU32, kBool, "OpINotEqual", "bool"}),
PrintCase);
TEST_F(SpirvWriterTest, Convert_Mat2x3_F16_to_F32) {
auto* func = b.Function("foo", ty.mat2x3<f32>());
func->SetParams({b.FunctionParam("arg", ty.mat2x3<f16>())});
b.Append(func->Block(), [&] {
auto* result = b.Convert(ty.mat2x3<f32>(), func->Params()[0]);
b.Return(func, result);
mod.SetName(result, "result");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%11 = OpCompositeExtract %v3half %arg 0
%12 = OpFConvert %v3float %11
%13 = OpCompositeExtract %v3half %arg 1
%14 = OpFConvert %v3float %13
%result = OpCompositeConstruct %mat2v3float %12 %14
)");
}
TEST_F(SpirvWriterTest, Convert_Mat4x2_F32_to_F16) {
auto* func = b.Function("foo", ty.mat4x2<f16>());
func->SetParams({b.FunctionParam("arg", ty.mat4x2<f32>())});
b.Append(func->Block(), [&] {
auto* result = b.Convert(ty.mat4x2<f16>(), func->Params()[0]);
b.Return(func, result);
mod.SetName(result, "result");
});
ASSERT_TRUE(Generate()) << Error() << output_;
EXPECT_INST(R"(
%11 = OpCompositeExtract %v2float %arg 0
%12 = OpFConvert %v2half %11
%13 = OpCompositeExtract %v2float %arg 1
%14 = OpFConvert %v2half %13
%15 = OpCompositeExtract %v2float %arg 2
%16 = OpFConvert %v2half %15
%17 = OpCompositeExtract %v2float %arg 3
%18 = OpFConvert %v2half %17
%result = OpCompositeConstruct %mat4v2half %12 %14 %16 %18
)");
}
} // namespace
} // namespace tint::spirv::writer