| // 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. |
| |
| #include "src/tint/lang/core/ir/break_if.h" |
| |
| #include <utility> |
| |
| #include "src/tint/lang/core/ir/block.h" |
| #include "src/tint/lang/core/ir/clone_context.h" |
| #include "src/tint/lang/core/ir/loop.h" |
| #include "src/tint/lang/core/ir/module.h" |
| #include "src/tint/lang/core/ir/multi_in_block.h" |
| #include "src/tint/utils/ice/ice.h" |
| |
| TINT_INSTANTIATE_TYPEINFO(tint::core::ir::BreakIf); |
| |
| namespace tint::core::ir { |
| |
| BreakIf::BreakIf() = default; |
| |
| BreakIf::BreakIf(Value* condition, |
| ir::Loop* loop, |
| VectorRef<Value*> next_iter_values /* = tint::Empty */, |
| VectorRef<Value*> exit_values /* = tint::Empty */) |
| : loop_(loop), num_next_iter_values_(next_iter_values.Length()) { |
| TINT_ASSERT(loop_); |
| |
| AddOperand(BreakIf::kConditionOperandOffset, condition); |
| AddOperands(BreakIf::kArgsOperandOffset, std::move(next_iter_values)); |
| AddOperands(BreakIf::kArgsOperandOffset + num_next_iter_values_, std::move(exit_values)); |
| |
| if (loop_) { |
| loop_->Body()->AddInboundSiblingBranch(this); |
| SetControlInstruction(loop_); |
| } |
| } |
| |
| BreakIf::~BreakIf() = default; |
| |
| BreakIf* BreakIf::Clone(CloneContext& ctx) { |
| auto* loop = ctx.Remap(loop_); |
| auto* cond = ctx.Remap(Condition()); |
| auto args = ctx.Remap<BreakIf::kDefaultNumOperands>(Args()); |
| return ctx.ir.allocators.instructions.Create<BreakIf>(cond, loop, args); |
| } |
| |
| void BreakIf::SetLoop(ir::Loop* loop) { |
| if (loop_ && loop_->Body()) { |
| loop_->Body()->RemoveInboundSiblingBranch(this); |
| } |
| loop_ = loop; |
| SetControlInstruction(loop); |
| if (loop) { |
| loop->Body()->AddInboundSiblingBranch(this); |
| } |
| } |
| |
| } // namespace tint::core::ir |