Array index computation dehoisting.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 09f0b0d7290f02b07ae762bd64f93db39f014c1d..be64b2fcbee07597aa0e1a64c2cd3d9379ea8891 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -1238,13 +1238,13 @@ class LLoadKeyedFastElement: public LTemplateInstruction<1, 2, 0> {
 
   LOperand* elements() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
+  uint32_t additional_index() const { return hydrogen()->index_offset(); }
 };
 
 
 class LLoadKeyedFastDoubleElement: public LTemplateInstruction<1, 2, 0> {
  public:
-  LLoadKeyedFastDoubleElement(LOperand* elements,
-                              LOperand* key) {
+  LLoadKeyedFastDoubleElement(LOperand* elements, LOperand* key) {
     inputs_[0] = elements;
     inputs_[1] = key;
   }
@@ -1255,13 +1255,13 @@ class LLoadKeyedFastDoubleElement: public LTemplateInstruction<1, 2, 0> {
 
   LOperand* elements() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
+  uint32_t additional_index() const { return hydrogen()->index_offset(); }
 };
 
 
 class LLoadKeyedSpecializedArrayElement: public LTemplateInstruction<1, 2, 0> {
  public:
-  LLoadKeyedSpecializedArrayElement(LOperand* external_pointer,
-                                    LOperand* key) {
+  LLoadKeyedSpecializedArrayElement(LOperand* external_pointer, LOperand* key) {
     inputs_[0] = external_pointer;
     inputs_[1] = key;
   }
@@ -1275,6 +1275,7 @@ class LLoadKeyedSpecializedArrayElement: public LTemplateInstruction<1, 2, 0> {
   ElementsKind elements_kind() const {
     return hydrogen()->elements_kind();
   }
+  uint32_t additional_index() const { return hydrogen()->index_offset(); }
 };
 
 
@@ -1775,6 +1776,7 @@ class LStoreKeyedFastElement: public LTemplateInstruction<0, 3, 0> {
   LOperand* object() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
   LOperand* value() { return inputs_[2]; }
+  uint32_t additional_index() const { return hydrogen()->index_offset(); }
 };
 
 
@@ -1797,6 +1799,7 @@ class LStoreKeyedFastDoubleElement: public LTemplateInstruction<0, 3, 0> {
   LOperand* elements() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
   LOperand* value() { return inputs_[2]; }
+  uint32_t additional_index() const { return hydrogen()->index_offset(); }
 
   bool NeedsCanonicalization() { return hydrogen()->NeedsCanonicalization(); }
 };
@@ -1822,6 +1825,7 @@ class LStoreKeyedSpecializedArrayElement: public LTemplateInstruction<0, 3, 0> {
   ElementsKind elements_kind() const {
     return hydrogen()->elements_kind();
   }
+  uint32_t additional_index() const { return hydrogen()->index_offset(); }
 };