Files
kotlin/compiler/testData/codegen/bytecodeText/nullCheckOptimization/primitiveCheck.kt
Mads Ager 690b8e0ac9 JVM_IR: Optimize null checks.
Introduce lowering to remove null checks for primitive type
expressions and replace them with true/false. Side-effects
are preserved.

Generate ifnull/ifnonnull instructions for null checks instead
of materializing a null literal for an equality check.
2019-01-19 09:43:43 +01:00

19 lines
205 B
Kotlin
Vendored

fun f() : Int {
return 42
}
fun box(): String {
if (f() == null) {
return "fail 1"
}
if (f() != null) {
return "OK"
}
return "fail 2"
}
// 0 IF
// 0 ACONST_NULL