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Type:
Enhancement
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Resolution: Fixed
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Priority:
P4
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Affects Version/s: 23
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Component/s: hotspot
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b21
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generic
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generic
Current parallel iv optimization only happens in an int counted loop with int-typed parallel iv's. Optimization for the following code should be considered:
private static long testIntCountedLoopWithLongIv(int stop) {
long a = 0; // <-- typed long
for (int i = 0; i < stop; i++) {
a += 42; // <-- 42 is a long constant
}
return a;
}
where the value of `a` should be eventually optimized to a constant time operation dependent on `stop`.
private static long testIntCountedLoopWithLongIv(int stop) {
long a = 0; // <-- typed long
for (int i = 0; i < stop; i++) {
a += 42; // <-- 42 is a long constant
}
return a;
}
where the value of `a` should be eventually optimized to a constant time operation dependent on `stop`.
- duplicates
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- Closed
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- relates to
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- Open
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- Open
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- links to
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Commit(master)
openjdk/jdk/80ec5522
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Review(master)
openjdk/jdk/18489