| Index: test/unittests/compiler/change-lowering-unittest.cc | 
| diff --git a/test/unittests/compiler/change-lowering-unittest.cc b/test/unittests/compiler/change-lowering-unittest.cc | 
| index f70ee9513dba22c60c22964a7dda14e422789b42..bfee7562d3cf65bcfe1f9524373e60e3fe13464c 100644 | 
| --- a/test/unittests/compiler/change-lowering-unittest.cc | 
| +++ b/test/unittests/compiler/change-lowering-unittest.cc | 
| @@ -90,9 +90,12 @@ class ChangeLoweringTest : public GraphTest { | 
| Matcher<Node*> IsLoadHeapNumber(const Matcher<Node*>& value_matcher, | 
| const Matcher<Node*>& control_matcher) { | 
| return IsLoad(kMachFloat64, value_matcher, | 
| -                  IsInt32Constant(HeapNumberValueOffset()), graph()->start(), | 
| +                  IsIntPtrConstant(HeapNumberValueOffset()), graph()->start(), | 
| control_matcher); | 
| } | 
| +  Matcher<Node*> IsIntPtrConstant(int value) { | 
| +    return Is32() ? IsInt32Constant(value) : IsInt64Constant(value); | 
| +  } | 
| Matcher<Node*> IsWordEqual(const Matcher<Node*>& lhs_matcher, | 
| const Matcher<Node*>& rhs_matcher) { | 
| return Is32() ? IsWord32Equal(lhs_matcher, rhs_matcher) | 
| @@ -162,7 +165,7 @@ TARGET_TEST_P(ChangeLoweringCommonTest, ChangeFloat64ToTagged) { | 
| IsAllocateHeapNumber(IsValueEffect(val), graph()->start())), | 
| IsStore(StoreRepresentation(kMachFloat64, kNoWriteBarrier), | 
| CaptureEq(&heap_number), | 
| -                  IsInt32Constant(HeapNumberValueOffset()), val, | 
| +                  IsIntPtrConstant(HeapNumberValueOffset()), val, | 
| CaptureEq(&heap_number), graph()->start()))); | 
| } | 
|  | 
| @@ -207,7 +210,7 @@ TARGET_TEST_F(ChangeLowering32Test, ChangeInt32ToTagged) { | 
| IsAllocateHeapNumber(_, CaptureEq(&if_true))), | 
| IsStore(StoreRepresentation(kMachFloat64, kNoWriteBarrier), | 
| CaptureEq(&heap_number), | 
| -                             IsInt32Constant(HeapNumberValueOffset()), | 
| +                             IsIntPtrConstant(HeapNumberValueOffset()), | 
| IsChangeInt32ToFloat64(val), | 
| CaptureEq(&heap_number), CaptureEq(&if_true))), | 
| IsProjection( | 
| @@ -346,7 +349,7 @@ TARGET_TEST_F(ChangeLowering64Test, ChangeInt32ToTagged) { | 
|  | 
| EXPECT_THAT(reduction.replacement(), | 
| IsWord64Shl(IsChangeInt32ToInt64(val), | 
| -                          IsInt32Constant(SmiShiftAmount()))); | 
| +                          IsInt64Constant(SmiShiftAmount()))); | 
| } | 
|  | 
|  | 
| @@ -366,12 +369,12 @@ TARGET_TEST_F(ChangeLowering64Test, ChangeTaggedToFloat64) { | 
| IsPhi( | 
| kMachFloat64, IsLoadHeapNumber(val, CaptureEq(&if_true)), | 
| IsChangeInt32ToFloat64(IsTruncateInt64ToInt32( | 
| -              IsWord64Sar(val, IsInt32Constant(SmiShiftAmount())))), | 
| +              IsWord64Sar(val, IsInt64Constant(SmiShiftAmount())))), | 
| IsMerge( | 
| AllOf(CaptureEq(&if_true), | 
| IsIfTrue(AllOf( | 
| CaptureEq(&branch), | 
| -                        IsBranch(IsWord64And(val, IsInt32Constant(kSmiTagMask)), | 
| +                        IsBranch(IsWord64And(val, IsInt64Constant(kSmiTagMask)), | 
| graph()->start())))), | 
| IsIfFalse(CaptureEq(&branch))))); | 
| } | 
| @@ -393,11 +396,11 @@ TARGET_TEST_F(ChangeLowering64Test, ChangeTaggedToInt32) { | 
| IsPhi(kMachInt32, | 
| IsChangeFloat64ToInt32(IsLoadHeapNumber(val, CaptureEq(&if_true))), | 
| IsTruncateInt64ToInt32( | 
| -                IsWord64Sar(val, IsInt32Constant(SmiShiftAmount()))), | 
| +                IsWord64Sar(val, IsInt64Constant(SmiShiftAmount()))), | 
| IsMerge(AllOf(CaptureEq(&if_true), IsIfTrue(CaptureEq(&branch))), | 
| IsIfFalse(AllOf( | 
| CaptureEq(&branch), | 
| -                        IsBranch(IsWord64And(val, IsInt32Constant(kSmiTagMask)), | 
| +                        IsBranch(IsWord64And(val, IsInt64Constant(kSmiTagMask)), | 
| graph()->start())))))); | 
| } | 
|  | 
| @@ -418,11 +421,11 @@ TARGET_TEST_F(ChangeLowering64Test, ChangeTaggedToUint32) { | 
| IsPhi(kMachUint32, | 
| IsChangeFloat64ToUint32(IsLoadHeapNumber(val, CaptureEq(&if_true))), | 
| IsTruncateInt64ToInt32( | 
| -                IsWord64Sar(val, IsInt32Constant(SmiShiftAmount()))), | 
| +                IsWord64Sar(val, IsInt64Constant(SmiShiftAmount()))), | 
| IsMerge(AllOf(CaptureEq(&if_true), IsIfTrue(CaptureEq(&branch))), | 
| IsIfFalse(AllOf( | 
| CaptureEq(&branch), | 
| -                        IsBranch(IsWord64And(val, IsInt32Constant(kSmiTagMask)), | 
| +                        IsBranch(IsWord64And(val, IsInt64Constant(kSmiTagMask)), | 
| graph()->start())))))); | 
| } | 
|  | 
| @@ -442,18 +445,18 @@ TARGET_TEST_F(ChangeLowering64Test, ChangeUint32ToTagged) { | 
| phi, | 
| IsPhi( | 
| kMachAnyTagged, IsWord64Shl(IsChangeUint32ToUint64(val), | 
| -                                      IsInt32Constant(SmiShiftAmount())), | 
| +                                      IsInt64Constant(SmiShiftAmount())), | 
| IsFinish(AllOf(CaptureEq(&heap_number), | 
| IsAllocateHeapNumber(_, CaptureEq(&if_false))), | 
| IsStore(StoreRepresentation(kMachFloat64, kNoWriteBarrier), | 
| CaptureEq(&heap_number), | 
| -                           IsInt32Constant(HeapNumberValueOffset()), | 
| +                           IsInt64Constant(HeapNumberValueOffset()), | 
| IsChangeUint32ToFloat64(val), | 
| CaptureEq(&heap_number), CaptureEq(&if_false))), | 
| IsMerge( | 
| IsIfTrue(AllOf(CaptureEq(&branch), | 
| IsBranch(IsUint32LessThanOrEqual( | 
| -                                          val, IsInt32Constant(SmiMaxValue())), | 
| +                                          val, IsInt64Constant(SmiMaxValue())), | 
| graph()->start()))), | 
| AllOf(CaptureEq(&if_false), IsIfFalse(CaptureEq(&branch)))))); | 
| } | 
|  |