src/tint/lang/core/ir/unreachable.h

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#ifndef SRC_TINT_LANG_CORE_IR_UNREACHABLE_H_
#define SRC_TINT_LANG_CORE_IR_UNREACHABLE_H_

#include <string>

#include "src/tint/lang/core/ir/terminator.h"

namespace tint::core::ir {

/// An unreachable instruction in the IR.
class Unreachable final : public Castable<Unreachable, Terminator> {
  public:
    /// The fixed number of results returned by unreachable instructions
    static constexpr size_t kNumResults = 0;

    /// The fixed number of operands accepted by unreachable instructions
    static constexpr size_t kNumOperands = 0;

    /// @param id the instruction id
    explicit Unreachable(Instruction::Id id);

    ~Unreachable() override;

    /// @copydoc Instruction::Clone()
    Unreachable* Clone(CloneContext& ctx) override;

    /// @returns the friendly name for the instruction
    std::string FriendlyName() const override { return "unreachable"; }
};

}  // namespace tint::core::ir

#endif  // SRC_TINT_LANG_CORE_IR_UNREACHABLE_H_