Implement fixpoint iteration for escape analysis.

src/hydrogen-escape-analysis.h

Index: src/hydrogen-escape-analysis.h
diff --git a/src/hydrogen-escape-analysis.h b/src/hydrogen-escape-analysis.h
index 3e27cc1b48b62d652a2b922c3278bd55b3f2bcaa..1fee852dd204072a0d91cde362ca25ac97e1a066 100644
--- a/src/hydrogen-escape-analysis.h
+++ b/src/hydrogen-escape-analysis.h
@@ -70,6 +70,9 @@ class HEscapeAnalysisPhase : public HPhase {
     block_states_.Set(block->block_id(), state);
   }
 
+  // Maximum number of escape analysis iterations.
+  static const int kMaxFixpointIterationCount = 2;

[titzer, 2013/09/30 11:38:06]

How about a flag?

[Michael Starzinger, 2013/10/16 08:40:13]

Done.

+
   // List of allocations captured during collection phase.
   ZoneList<HInstruction*> captured_;