blob: 395b66858fd8781465c2a36c3be864d43e0ecb80 [file] [log] [blame]
// Copyright 2022 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.
#include "src/tint/lang/core/ir/switch.h"
#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(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());
}
}
Switch* Switch::Clone(CloneContext& ctx) {
auto* cond = ctx.Remap(Condition());
auto* new_switch = ctx.ir.instructions.Create<Switch>(cond);
ctx.Replace(this, new_switch);
new_switch->cases_.Reserve(cases_.Length());
for (const auto& cse : cases_) {
Switch::Case new_case{};
new_case.block = ctx.ir.blocks.Create<ir::Block>();
cse.block->CloneInto(ctx, new_case.block);
new_case.selectors.Reserve(cse.selectors.Length());
for (const 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(new_case);
}
new_switch->SetResults(ctx.Clone(results_));
return new_switch;
}
} // namespace tint::core::ir