Eliminate non-escaping boxes, tuples and refs

Eliminate boxes, tuples and refs that are created and used within a
single method without escaping. For details on the implementation see
the doc comment in class BoxUnbox.

This commit also cleans up the logic of inter-dependent method-level
optimizations that run until reaching a fixpoint.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/partest-extras/scala/tools/partest/ASMConverters.scala b/src/partest-extras/scala/tools/partest/ASMConverters.scala
index b4c686473b..d990160ce8 100644
--- a/src/partest-extras/scala/tools/partest/ASMConverters.scala
+++ b/src/partest-extras/scala/tools/partest/ASMConverters.scala
@@ -38,6 +38,11 @@ object ASMConverters {
     }
 
     def dropNonOp = dropLinesFrames.dropStaleLabels
+
+    def summary: List[Any] = dropNonOp map {
+      case i: Invoke => i.name
+      case i => i.opcode
+    }
   }
 
   sealed abstract class Instruction extends Product {