src/tint/lang/spirv/writer/writer_bench.cc

// Copyright 2022 The Dawn & Tint Authors
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#include <string>

#include "src/tint/cmd/bench/bench.h"
#include "src/tint/lang/spirv/writer/writer.h"

#if TINT_BUILD_WGSL_READER
#include "src/tint/lang/wgsl/reader/reader.h"
#endif  // TINT_BUILD_WGSL_READER

namespace tint::spirv::writer {
namespace {

void GenerateSPIRV(benchmark::State& state, std::string input_name) {
    auto res = bench::LoadProgram(input_name);
    if (res != Success) {
        state.SkipWithError(res.Failure().reason.str());
        return;
    }
    for (auto _ : state) {
        auto gen_res = Generate(res->program, {});
        if (gen_res != Success) {
            state.SkipWithError(gen_res.Failure().reason.str());
        }
    }
}

void GenerateSPIRV_UseIR(benchmark::State& state, std::string input_name) {
#if TINT_BUILD_WGSL_READER
    auto res = bench::LoadProgram(input_name);
    if (res != Success) {
        state.SkipWithError(res.Failure().reason.str());
        return;
    }
    for (auto _ : state) {
        // Convert the AST program to an IR module.
        auto ir = tint::wgsl::reader::ProgramToLoweredIR(res->program);
        if (ir != Success) {
            state.SkipWithError(ir.Failure().reason.str());
            return;
        }

        auto gen_res = Generate(ir.Get(), {});
        if (gen_res != Success) {
            state.SkipWithError(gen_res.Failure().reason.str());
        }
    }
#else
#error "WGSL Reader is required to build IR generator"
#endif  // TINT_BUILD_WGSL_READER
}

TINT_BENCHMARK_PROGRAMS(GenerateSPIRV);
TINT_BENCHMARK_PROGRAMS(GenerateSPIRV_UseIR);

}  // namespace
}  // namespace tint::spirv::writer