kotlin/compiler/testData/codegen/box/controlStructures/breakContinueInExpressions/pathologicalDoWhile.kt at b09a40d07a24bcdb8793ec4e23dbcab1c4e266d1 - kotlin - Gitea: Git with a cup of tea

jlengrand/kotlin

mirror of https://github.com/jlengrand/kotlin.git synced 2026-05-08 15:53:19 +00:00

Files

Dmitry Petrov ba933fa887 KT-15112, KT-15631

Revert changes for "tolerant to uninitialized values" in OptimizationBasicInterpreter:
this approach doesn't converge for some specific cases where local variable is reused
(e.g., in several inlined functions - see https://youtrack.jetbrains.com/issue/KT-15112).

Instead, treat fake always-false conditional jump in the beginning of the post-condition loop as a "reference point" for stack on loop break / continue.
This requires an extra abstraction layer in FixStackAnalyzer, since we can't perform fine-grain manipulations on Frames
(such as "combine frame C from local variables of frame A and stack of frame B").

NB additional NOPs will be generated for post-condition loops.
Should make a separate bytecode postprocessing pass to get rid of unnecessary NOPs
(several YT issues for perceived quality of the generated bytecode are about such NOPs).

2017-01-13 10:31:07 +03:00

8 lines

128 B

Kotlin

Vendored

Raw Blame History

 fun box(): String {
     var flag = false
     do {
         if (flag) break
         continue
     } while (false)
     return "OK"
 }