Mark Punzalan
b1ce21bc55
"checked step" (check for a positive step arg) and "negated step" (negate the step arg when the nested step is negative).
36 lines
896 B
Kotlin
Vendored
36 lines
896 B
Kotlin
Vendored
// TARGET_BACKEND: JVM_IR
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fun box(): String {
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for (i in 1..4 step 1) {
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}
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return "OK"
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}
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// For "step" progressions in JVM IR, when the step is constant and == 1, and "step" is called on a literal progression which we already
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// know to have a step whose absolute value is 1, we can essentially ignore the "step" call.
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//
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// Expected lowered form of loop:
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//
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// // Standard form of loop over progression
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// var inductionVar = 1
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// val last = 4
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// if (inductionVar <= last) {
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// // Loop is not empty
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// do {
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// val i = inductionVar
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// inductionVar += 1
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// // Loop body
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// } while (inductionVar <= last)
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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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// 0 INVOKESTATIC kotlin/internal/ProgressionUtilKt.getProgressionLastElement
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// 0 NEW java/lang/IllegalArgumentException
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// 0 ATHROW
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// 1 IF_ICMPLE
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// 1 IF |