src/tint/lang/wgsl/ir_roundtrip_fuzz.cc

// Copyright 2023 The Dawn & Tint Authors
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// GEN_BUILD:CONDITION(tint_build_wgsl_reader && tint_build_wgsl_writer)

#include <iostream>

#include "src/tint/cmd/fuzz/ir/fuzz.h"
#include "src/tint/lang/core/ir/disassembler.h"
#include "src/tint/lang/wgsl/reader/lower/lower.h"
#include "src/tint/lang/wgsl/reader/parser/parser.h"
#include "src/tint/lang/wgsl/reader/program_to_ir/program_to_ir.h"
#include "src/tint/lang/wgsl/writer/ir_to_program/ir_to_program.h"
#include "src/tint/lang/wgsl/writer/raise/raise.h"
#include "src/tint/lang/wgsl/writer/writer.h"

namespace tint::wgsl {

void IRRoundtripFuzzer(core::ir::Module& ir) {
    if (auto res = tint::wgsl::writer::Raise(ir); res != Success) {
        TINT_ICE() << res.Failure();
        return;
    }

    writer::ProgramOptions program_options;
    program_options.allowed_features = AllowedFeatures::Everything();
    auto dst = tint::wgsl::writer::IRToProgram(ir, program_options);
    if (!dst.IsValid()) {
        std::cerr << "IR:\n" << core::ir::Disassemble(ir) << std::endl;
        if (auto result = tint::wgsl::writer::Generate(dst, {}); result == Success) {
            std::cerr << "WGSL:\n" << result->wgsl << std::endl << std::endl;
        }
        TINT_ICE() << dst.Diagnostics();
        return;
    }

    return;
}

}  // namespace tint::wgsl

TINT_IR_MODULE_FUZZER(tint::wgsl::IRRoundtripFuzzer);