blob: 1e5b0fc70a4c48733c8b3f2f790ec216ee9be4ea [file] [log] [blame]
// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef SRC_TINT_LANG_CORE_IR_SWIZZLE_H_
#define SRC_TINT_LANG_CORE_IR_SWIZZLE_H_
#include <string>
#include "src/tint/lang/core/ir/operand_instruction.h"
#include "src/tint/utils/rtti/castable.h"
namespace tint::core::ir {
/// A swizzle instruction in the IR.
class Swizzle final : public Castable<Swizzle, OperandInstruction<1, 1>> {
public:
/// The offset in Operands() for the object being swizzled
static constexpr size_t kObjectOperandOffset = 0;
/// Constructor
/// @param result the result value
/// @param object the object being swizzled
/// @param indices the indices to swizzle
Swizzle(InstructionResult* result, Value* object, VectorRef<uint32_t> indices);
~Swizzle() override;
/// @copydoc Instruction::Clone()
Swizzle* Clone(CloneContext& ctx) override;
/// @returns the object used for the access
Value* Object() { return operands_[kObjectOperandOffset]; }
/// @returns the object used for the access
const Value* Object() const { return operands_[kObjectOperandOffset]; }
/// @returns the swizzle indices
VectorRef<uint32_t> Indices() const { return indices_; }
/// @returns the friendly name for the instruction
std::string FriendlyName() const override { return "swizzle"; }
private:
Vector<uint32_t, 4> indices_;
};
} // namespace tint::core::ir
#endif // SRC_TINT_LANG_CORE_IR_SWIZZLE_H_