diff options
Diffstat (limited to 'src/compiler/scala')
| -rw-r--r-- | src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala | 4 | ||||
| -rw-r--r-- | src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala | 8 |
2 files changed, 10 insertions, 2 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala b/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala index 7c46d648fe..97140aca2e 100644 --- a/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala +++ b/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala @@ -86,6 +86,7 @@ abstract class GenASM extends SubComponent with BytecodeWriters with GenJVMASM { if (settings.Xdce.value) for ((sym, cls) <- icodes.classes if inliner.isClosureClass(sym) && !deadCode.liveClosures(sym)) { log(s"Optimizer eliminated ${sym.fullNameString}") + deadCode.elidedClosures += sym icodes.classes -= sym } @@ -624,7 +625,8 @@ abstract class GenASM extends SubComponent with BytecodeWriters with GenJVMASM { innerClassBuffer += m } - val allInners: List[Symbol] = innerClassBuffer.toList + val allInners: List[Symbol] = innerClassBuffer.toList filterNot deadCode.elidedClosures + if (allInners.nonEmpty) { debuglog(csym.fullName('.') + " contains " + allInners.size + " inner classes.") diff --git a/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala b/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala index 1beed3f420..db56f61f16 100644 --- a/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala +++ b/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala @@ -40,7 +40,13 @@ abstract class DeadCodeElimination extends SubComponent { } /** closures that are instantiated at least once, after dead code elimination */ - val liveClosures: mutable.Set[Symbol] = new mutable.HashSet() + val liveClosures = perRunCaches.newSet[Symbol]() + + /** closures that are eliminated, populated by GenASM.AsmPhase.run() + * these class symbols won't have a .class physical file, thus shouldn't be included in InnerClasses JVM attribute, + * otherwise some tools get confused or slow (SI-6546) + * */ + val elidedClosures = perRunCaches.newSet[Symbol]() /** Remove dead code. */ |