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// Copyright 2023 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_IR_BREAK_IF_H_
#define SRC_TINT_IR_BREAK_IF_H_
#include "src/tint/ir/terminator.h"
#include "src/tint/ir/value.h"
#include "src/tint/utils/castable.h"
// Forward declarations
namespace tint::ir {
class Loop;
} // namespace tint::ir
namespace tint::ir {
/// A break-if iteration instruction.
class BreakIf : public utils::Castable<BreakIf, Terminator> {
public:
/// The offset in Operands() for the condition
static constexpr size_t kConditionOperandOffset = 0;
/// The base offset in Operands() for the arguments
static constexpr size_t kArgsOperandOffset = 1;
/// Constructor
/// @param condition the break condition
/// @param loop the loop containing the break-if
/// @param args the MultiInBlock arguments
BreakIf(Value* condition, ir::Loop* loop, utils::VectorRef<Value*> args = utils::Empty);
~BreakIf() override;
/// @returns the MultiInBlock arguments
utils::Slice<Value* const> Args() override {
return operands_.Slice().Offset(kArgsOperandOffset);
}
/// @returns the break condition
Value* Condition() { return operands_[kConditionOperandOffset]; }
/// @returns the loop containing the break-if
ir::Loop* Loop() { return loop_; }
private:
ir::Loop* loop_ = nullptr;
};
} // namespace tint::ir
#endif // SRC_TINT_IR_BREAK_IF_H_