You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
793 B
36 lines
793 B
/*
|
|
* Copyright (c) 2018-present, Facebook, Inc.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
class HoistExpensive {
|
|
|
|
int incr(int x) {
|
|
return x + 1;
|
|
}
|
|
|
|
// incr will not be hoisted since it is cheap
|
|
void cheap_dont_hoist(int size) {
|
|
int x = 10;
|
|
for (int i = 0; i < size; i++) {
|
|
incr(x);
|
|
}
|
|
}
|
|
|
|
// call to cheap_dont_hoist will be hoisted since it is expensive.
|
|
void symbolic_expensive_hoist(int size) {
|
|
for (int i = 0; i < size; i++) {
|
|
cheap_dont_hoist(size);
|
|
}
|
|
}
|
|
|
|
// call to cheap_dont_hoist will NOT be hoisted since it is cheap.
|
|
void instantiated_cheap_hoist(int size) {
|
|
for (int i = 0; i < size; i++) {
|
|
cheap_dont_hoist(1);
|
|
}
|
|
}
|
|
}
|