Dmitry Petrov
43 lines
1.1 KiB
Kotlin
Vendored
43 lines
1.1 KiB
Kotlin
Vendored
// TARGET_BACKEND: JVM_IR
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// IMPORTANT!
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// Please, when your changes cause failures in bytecodeText tests for 'for' loops,
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// examine the resulting bytecode shape carefully.
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// Range and progression-based loops generated with Kotlin compiler should be
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// as close as possible to Java counter loops ('for (int i = a; i < b; ++i) { ... }').
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// Otherwise it may result in performance regression due to missing HotSpot optimizations.
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// Run Kotlin compiler benchmarks (https://github.com/Kotlin/kotlin-benchmarks)
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// with compiler built from your changes if you are not sure.
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fun one() = 1
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fun box(): String {
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for (i in 1..6 step one() step one()) {
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}
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return "OK"
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}
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// For "step" progressions in JVM IR, if the step is non-constant, there is a check that it is > 0, and if not, an IllegalArgumentException
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// is thrown.
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//
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// 0 iterator
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// 0 getStart
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// 0 getEnd
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// 0 getFirst
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// 0 getLast
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// 0 getStep
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// 2 INVOKESTATIC kotlin/internal/ProgressionUtilKt.getProgressionLastElement
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// 2 NEW java/lang/IllegalArgumentException
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// 2 ATHROW
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// 1 IF_ICMPGT
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// 1 IF_ICMPEQ
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// 2 IFGT
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// 4 IF
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// 14 ILOAD
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// 7 ISTORE
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// 1 IADD
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// 0 ISUB
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// 0 IINC
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