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52 lines
1.2 KiB
52 lines
1.2 KiB
/*
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* Copyright (c) 2018-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import java.util.ArrayList;
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class HoistExpensive {
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int incr(int x) {
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return x + 1;
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}
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// incr will not be hoisted since it is cheap
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void cheap_dont_hoist(int size) {
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int x = 10;
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for (int i = 0; i < size; i++) {
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incr(x);
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}
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}
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// call to cheap_dont_hoist will be hoisted since it is expensive.
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void symbolic_expensive_hoist(int size) {
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for (int i = 0; i < size; i++) {
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cheap_dont_hoist(size);
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}
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}
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// call to cheap_dont_hoist will NOT be hoisted since it is cheap.
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void instantiated_cheap_hoist(int size) {
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for (int i = 0; i < size; i++) {
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cheap_dont_hoist(1);
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}
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}
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// incr will not be hoisted since it is cheap
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void cheap_iterator_dont_hoist(ArrayList<Integer> list) {
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int x = 0;
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for (Integer elem : list) {
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incr(x);
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}
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}
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// call to cheap_iterator_dont_hoist will be hoisted since it is expensive.
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void symbolic_expensive_iterator_hoist(int size, ArrayList<Integer> list) {
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for (int i = 0; i < size; i++) {
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cheap_iterator_dont_hoist(list);
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}
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}
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}
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