Files
kotlin-fork/compiler/testData/codegen/bytecodeText/forLoop/loopVarInterval.kt
T
2021-12-07 17:41:59 +03:00

26 lines
965 B
Kotlin
Vendored

// 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 f() {
for (c in "123") {
print(c)
}
}
// Different locals slot numbers are used in JVM vs JVM IR for loop and induction variables.
// JVM_TEMPLATES
// 1 ISTORE 0\s+L3
// 1 ILOAD 0\s+INVOKEVIRTUAL java/io/PrintStream.print \(C\)V
// 1 LOCALVARIABLE c C L3 L\d+ 0
// JVM_IR_TEMPLATES
// 1 ISTORE 2\s+L4
// 1 ILOAD 2\s+INVOKEVIRTUAL java/io/PrintStream.print \(C\)V
// 1 LOCALVARIABLE c C L4 L\d+ 2