| // Copyright 2022 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/switch.h" |
| |
| #include <utility> |
| |
| #include "src/tint/lang/core/ir/clone_context.h" |
| #include "src/tint/lang/core/ir/module.h" |
| #include "src/tint/utils/ice/ice.h" |
| |
| TINT_INSTANTIATE_TYPEINFO(tint::core::ir::Switch); |
| |
| namespace tint::core::ir { |
| |
| Switch::Switch() = default; |
| |
| Switch::Switch(Value* cond) { |
| TINT_ASSERT(cond); |
| |
| AddOperand(Switch::kConditionOperandOffset, cond); |
| } |
| |
| Switch::~Switch() = default; |
| |
| void Switch::ForeachBlock(const std::function<void(ir::Block*)>& cb) { |
| for (auto& c : cases_) { |
| cb(c.block); |
| } |
| } |
| |
| void Switch::ForeachBlock(const std::function<void(const ir::Block*)>& cb) const { |
| for (auto& c : cases_) { |
| cb(c.block); |
| } |
| } |
| |
| Switch* Switch::Clone(CloneContext& ctx) { |
| auto* cond = ctx.Remap(Condition()); |
| auto* new_switch = ctx.ir.allocators.instructions.Create<Switch>(cond); |
| ctx.Replace(this, new_switch); |
| |
| new_switch->cases_.Reserve(cases_.Length()); |
| for (auto& cse : cases_) { |
| Switch::Case new_case{}; |
| new_case.block = ctx.ir.blocks.Create<ir::Block>(); |
| new_case.block->SetParent(new_switch); |
| cse.block->CloneInto(ctx, new_case.block); |
| |
| new_case.selectors.Reserve(cse.selectors.Length()); |
| for (auto& sel : cse.selectors) { |
| auto* new_val = sel.val ? ctx.Clone(sel.val) : nullptr; |
| new_case.selectors.Push(Switch::CaseSelector{new_val}); |
| } |
| new_switch->cases_.Push(std::move(new_case)); |
| } |
| |
| new_switch->SetResults(ctx.Clone(results_)); |
| |
| return new_switch; |
| } |
| |
| } // namespace tint::core::ir |