First implementation of allocation elimination in Hydrogen.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index f1eaa22c879d2093d0b67f58204c207a43ee5b02..4208727b9c390a4c6d30d2cc77efa6aead48c1bc 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -2949,6 +2949,7 @@ bool HGraph::Optimize(SmartArrayPointer<char>* bailout_reason) {
   }
 
   Run<HPropagateDeoptimizingMarkPhase>();
+

[titzer, 2013/08/01 17:11:50]

whitespace change

[Michael Starzinger, 2013/08/05 15:13:00]

Done. Removed. Even though I think there should be whitespace here.

   if (!CheckConstPhiUses()) {
     *bailout_reason = SmartArrayPointer<char>(StrDup(
         "Unsupported phi use of const variable"));
@@ -2961,6 +2962,8 @@ bool HGraph::Optimize(SmartArrayPointer<char>* bailout_reason) {
     return false;
   }
 
+  if (FLAG_use_escape_analysis) Run<HEscapeAnalysisPhase>();
+
   // Remove dead code and phis
   if (FLAG_dead_code_elimination) Run<HDeadCodeEliminationPhase>();
   CollectPhis();
@@ -2986,8 +2989,6 @@ bool HGraph::Optimize(SmartArrayPointer<char>* bailout_reason) {
 
   if (FLAG_use_canonicalizing) Run<HCanonicalizePhase>();
 
-  if (FLAG_use_escape_analysis) Run<HEscapeAnalysisPhase>();
-
   if (FLAG_use_gvn) Run<HGlobalValueNumberingPhase>();
 
   if (FLAG_use_range) Run<HRangeAnalysisPhase>();