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20 lines
482 B
20 lines
482 B
5 years ago
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We report this issue type when a function call is loop-invariant and hoistable, i.e.
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- the function has no side side effects (pure)
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- has invariant arguments and result (i.e. have the same value in all loop iterations)
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- it is guaranteed to execute, i.e. it dominates all loop sources
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```java
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int foo(int x, int y) {
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return x + y;
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}
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void invariant_hoist(int size) {
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int x = 10;
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int y = 5;
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for (int i = 0; i < size; i++) {
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foo(x, y); // hoistable
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}
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}
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```
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