Fix missing GVN flag for new-space promotion.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index ba8d2e781dc1c102fa0789f95b23c4384c29db8a..aa19bc32f57a320091c994840668f62b4e49c73f 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -1223,6 +1223,7 @@ class HChange: public HUnaryOperation {
     SetFlag(kUseGVN);
     if (deoptimize_on_undefined) SetFlag(kDeoptimizeOnUndefined);
     if (is_truncating) SetFlag(kTruncatingToInt32);
+    if (to.IsTagged()) SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   virtual HValue* EnsureAndPropagateNotMinusZero(BitVector* visited);
@@ -1348,6 +1349,7 @@ class HStackCheck: public HTemplateInstruction<1> {
 
   HStackCheck(HValue* context, Type type) : type_(type) {
     SetOperandAt(0, context);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   HValue* context() { return OperandAt(0); }
@@ -1926,6 +1928,7 @@ class HUnaryMathOperation: public HTemplateInstruction<2> {
       case kMathAbs:
         set_representation(Representation::Tagged());
         SetFlag(kFlexibleRepresentation);
+        SetGVNFlag(kChangesNewSpacePromotion);
         break;
       case kMathSqrt:
       case kMathPowHalf:
@@ -1934,6 +1937,7 @@ class HUnaryMathOperation: public HTemplateInstruction<2> {
       case kMathCos:
       case kMathTan:
         set_representation(Representation::Double());
+        SetGVNFlag(kChangesNewSpacePromotion);
         break;
       default:
         UNREACHABLE();
@@ -3154,6 +3158,7 @@ class HPower: public HTemplateInstruction<2> {
     SetOperandAt(1, right);
     set_representation(Representation::Double());
     SetFlag(kUseGVN);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   HValue* left() { return OperandAt(0); }
@@ -4323,6 +4328,7 @@ class HTransitionElementsKind: public HTemplateInstruction<1> {
     SetFlag(kUseGVN);
     SetGVNFlag(kChangesElementsKind);
     SetGVNFlag(kChangesElementsPointer);
+    SetGVNFlag(kChangesNewSpacePromotion);
     set_representation(Representation::Tagged());
   }
 
@@ -4384,6 +4390,7 @@ class HStringCharCodeAt: public HTemplateInstruction<3> {
     set_representation(Representation::Integer32());
     SetFlag(kUseGVN);
     SetGVNFlag(kDependsOnMaps);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
@@ -4415,6 +4422,7 @@ class HStringCharFromCode: public HTemplateInstruction<2> {
     SetOperandAt(1, char_code);
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
@@ -4516,6 +4524,7 @@ class HFastLiteral: public HMaterializedLiteral<1> {
         boilerplate_(boilerplate),
         total_size_(total_size) {
     SetOperandAt(0, context);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   // Maximum depth and total number of elements and properties for literal
@@ -4551,6 +4560,7 @@ class HArrayLiteral: public HMaterializedLiteral<1> {
         length_(length),
         boilerplate_object_(boilerplate_object) {
     SetOperandAt(0, context);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   HValue* context() { return OperandAt(0); }
@@ -4591,6 +4601,7 @@ class HObjectLiteral: public HMaterializedLiteral<1> {
         fast_elements_(fast_elements),
         has_function_(has_function) {
     SetOperandAt(0, context);
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   HValue* context() { return OperandAt(0); }
@@ -4652,6 +4663,7 @@ class HFunctionLiteral: public HTemplateInstruction<1> {
       : shared_info_(shared), pretenure_(pretenure) {
     SetOperandAt(0, context);
     set_representation(Representation::Tagged());
+    SetGVNFlag(kChangesNewSpacePromotion);
   }
 
   HValue* context() { return OperandAt(0); }