1 /**
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "reg_alloc_stat.h"
17 #include "optimizer/ir/datatype.h"
18
19 namespace panda::compiler {
RegAllocStat(const ArenaVector<LifeIntervals * > & intervals)20 RegAllocStat::RegAllocStat(const ArenaVector<LifeIntervals *> &intervals)
21 {
22 std::vector<bool> used_regs(INVALID_REG);
23 std::vector<bool> used_vregs(INVALID_REG);
24 std::vector<bool> used_slots(INVALID_REG);
25 std::vector<bool> used_vslots(INVALID_REG);
26
27 for (const auto &interv : intervals) {
28 if (interv->IsPhysical() || interv->NoDest()) {
29 continue;
30 }
31 auto location = interv->GetLocation();
32 if (location.IsRegister()) {
33 used_regs[location.GetValue()] = true;
34 } else if (location.IsFpRegister()) {
35 used_vregs[location.GetValue()] = true;
36 } else if (location.IsStack()) {
37 auto slot = location.GetValue();
38 DataType::IsFloatType(interv->GetType()) ? (used_slots[slot] = true) : (used_vslots[slot] = true);
39 }
40 }
41
42 regs_ = static_cast<size_t>(std::count(used_regs.begin(), used_regs.end(), true));
43 vregs_ = static_cast<size_t>(std::count(used_vregs.begin(), used_vregs.end(), true));
44 slots_ = static_cast<size_t>(std::count(used_slots.begin(), used_slots.end(), true));
45 vslots_ = static_cast<size_t>(std::count(used_vslots.begin(), used_vslots.end(), true));
46 }
47 } // namespace panda::compiler
48