Crankshaft support for polymorphic array handling

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 267bf44a4b8389387644d3331d29901a5d28d719..6878d6a34e7903332caed12030ce9167d385c8b0 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -77,10 +77,12 @@ class LCodeGen;
   V(CmpIDAndBranch)                             \
   V(CmpJSObjectEq)                              \
   V(CmpJSObjectEqAndBranch)                     \
+  V(CmpMapAndBranch)                            \
   V(CmpSymbolEq)                                \
   V(CmpSymbolEqAndBranch)                       \
-  V(CmpMapAndBranch)                            \
   V(CmpT)                                       \
+  V(CmpConstantEq)                              \
+  V(CmpConstantEqAndBranch)                     \
   V(ConstantD)                                  \
   V(ConstantI)                                  \
   V(ConstantT)                                  \
@@ -89,6 +91,7 @@ class LCodeGen;
   V(Deoptimize)                                 \
   V(DivI)                                       \
   V(DoubleToI)                                  \
+  V(ElementsKind)                               \
   V(ExternalArrayLength)                        \
   V(FixedArrayLength)                           \
   V(FunctionLiteral)                            \
@@ -664,6 +667,29 @@ class LCmpSymbolEqAndBranch: public LControlInstruction<2, 0> {
 };
 
 
+class LCmpConstantEq: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LCmpConstantEq(LOperand* left) {
+    inputs_[0] = left;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpConstantEq, "cmp-constant-eq")
+  DECLARE_HYDROGEN_ACCESSOR(CompareConstantEq)
+};
+
+
+class LCmpConstantEqAndBranch: public LControlInstruction<1, 0> {
+ public:
+  explicit LCmpConstantEqAndBranch(LOperand* left) {
+    inputs_[0] = left;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(CmpConstantEqAndBranch,
+                               "cmp-constant-eq-and-branch")
+  DECLARE_HYDROGEN_ACCESSOR(CompareConstantEq)
+};
+
+
 class LIsNull: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LIsNull(LOperand* value) {
@@ -1078,6 +1104,17 @@ class LFixedArrayLength: public LTemplateInstruction<1, 1, 0> {
 };
 
 
+class LElementsKind: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LElementsKind(LOperand* value) {
+    inputs_[0] = value;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(ElementsKind, "elements-kind")
+  DECLARE_HYDROGEN_ACCESSOR(ElementsKind)
+};
+
+
 class LValueOf: public LTemplateInstruction<1, 1, 1> {
  public:
   LValueOf(LOperand* value, LOperand* temp) {