// IMPORTANT! // Please, when your changes cause failures in bytecodeText tests for 'for' loops, // examine the resulting bytecode shape carefully. // Range and progression-based loops generated with Kotlin compiler should be // as close as possible to Java counter loops ('for (int i = a; i < b; ++i) { ... }'). // Otherwise it may result in performance regression due to missing HotSpot optimizations. // Run Kotlin compiler benchmarks (https://github.com/Kotlin/kotlin-benchmarks) // with compiler built from your changes if you are not sure. fun test(): Int { var sum = 0 for (i in 4 downTo 1) { sum = sum * 10 + i } return sum } // 0 iterator // 0 getStart // 0 getEnd // 0 getFirst // 0 getLast // 1 IF_ICMP // 1 IF // JVM_IR_TEMPLATES // 4 ILOAD // 3 ISTORE // 1 IADD // 0 ISUB // 1 IINC