JVM IR: fix inheritance from mutable collections of Int

For subclasses of `AbstractMutableList<Int>` which are not inline
classes, the special bridge `remove` had a parameter of type `Int`
(mapped to JVM primitive int) before this fix. The hack in
`MethodSignatureMapper` changed this type to `Int?`, yet the body of the
special bridge still loaded it as non-nullable, which resulted in
incorrect bytecode.

It looks like a part of this hack in `BridgeLowering` was made only for
inline classes which are subclasses of mutable collections. Supposedly
it should be extended to non-inline classes, so that `remove` special
bridge would have consistent IR by the time it reaches codegen.

 #KT-46516 Fixed

This commit is contained in:

Alexander Udalov

2021-05-06 20:41:22 +02:00

parent f30980806f

commit e079fb665e

13 changed files with 113 additions and 10 deletions

									
										compiler/testData/codegen/bytecodeListing/collectionStubs/inheritingFromAbstractMutableList.kt
									
Vendored

		+2
		
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				@@ -1,3 +1,5 @@

				// WITH_RUNTIME

				abstract class AMListD : AbstractMutableList<Double>()

				abstract class AMListI : AbstractMutableList<Int>()