Handling expression decomposition and array bounds check hoisting: working code with lots of debugg…

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 9f63c174f1ae13435ee4c77aac3a3cbd97eee77e..ae97d5e4a81e56965e38fb5868f58deae06025e6 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -687,6 +687,11 @@ void HGraphBuilder::CheckBuilder::End() {
 }
 
 
+HConstant* HGraph::GetInvalidContext() {
+  return GetConstantInt32(&constant_invalid_context_, 0xFFFFC0C7);
+}
+
+
 HGraphBuilder::IfBuilder::IfBuilder(HGraphBuilder* builder, BailoutId id)
     : builder_(builder),
       finished_(false),
@@ -4007,6 +4012,13 @@ void HGraph::SetupInformativeDefinitionsRecursively(HBasicBlock* block) {
   for (int i = 0; i < block->dominated_blocks()->length(); ++i) {
     SetupInformativeDefinitionsRecursively(block->dominated_blocks()->at(i));
   }
+
+  for (HInstruction* i = block->first(); i != NULL; i = i->next()) {
+    if (i->IsBoundsCheck()) {
+      HBoundsCheck* check = HBoundsCheck::cast(i);
+      check->ApplyIndexChange();
+    }
+  }
 }