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

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#ifndef SRC_TINT_LANG_CORE_IR_DISCARD_H_
#define SRC_TINT_LANG_CORE_IR_DISCARD_H_

#include <string>

#include "src/tint/lang/core/ir/call.h"
#include "src/tint/utils/rtti/castable.h"

namespace tint::core::ir {

/// A discard instruction in the IR.
class Discard final : public Castable<Discard, Call> {
  public:
    /// The fixed number of results returned by this instruction
    static constexpr size_t kNumResults = 0;

    /// The fixed number of operands expected for this instruction
    static constexpr size_t kNumOperands = 0;

    /// Constructor
    /// @param id the instruction id
    explicit Discard(Id id);

    ~Discard() override;

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

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

}  // namespace tint::core::ir

#endif  // SRC_TINT_LANG_CORE_IR_DISCARD_H_