kotlin/compiler/testData/codegen/bytecodeText/boxingOptimization/simpleUninitializedMerge.kt at 8a9707c1402741f6a3e959fc89757cb763cf1823 - kotlin - Gitea: Git with a cup of tea

jlengrand/kotlin

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Denis Zharkov 914447b7eb Do not treat uninitialized value as a reason to retain boxing

See testData/simpleUnitializedMerge.kt
On exit from `if` we merge value in variable with slot 1 (x):
- from `if` body we get BoxedBasicValue
- from outer block we get UNITIALIZED_VALUE

So we just suppose `x` is unitialized after `if`
and there's no need to mark BoxedValue as unsafe to remove
because it's anyway can't be used after `if`

 #KT-6842 Fixed

2016-02-25 08:31:19 +03:00

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 fun box(): String {
     var result = 0
     if (1 == 1) {
         val x: Int? = 1
         result += x!!
     }
     return "OK"
 }
 // 0 java/lang/Integer.valueOf