Files
kotlin/compiler/testData/codegen/bytecodeText/nullCheckOptimization/alreadyCheckedForNull.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

7 lines
105 B
Kotlin
Vendored

fun test(x: String?) {
if (x == null) return
if (x == null) println("dead code")
}
// 0 println