[turbofan] Add support for %_MaxSmi and %_TypedArrayMaxSizeInHeap.

src/compiler/js-intrinsic-lowering.cc

Index: src/compiler/js-intrinsic-lowering.cc
diff --git a/src/compiler/js-intrinsic-lowering.cc b/src/compiler/js-intrinsic-lowering.cc
index 04f978f77c57ea0d2bf531f11d6c8290f428be99..31cfe1116daed9117578f3c33e47c45ea3a64a9e 100644
--- a/src/compiler/js-intrinsic-lowering.cc
+++ b/src/compiler/js-intrinsic-lowering.cc
@@ -76,6 +76,10 @@ Reduction JSIntrinsicLowering::Reduce(Node* node) {
       return ReduceCall(node);
     case Runtime::kInlineGetSuperConstructor:
       return ReduceGetSuperConstructor(node);
+    case Runtime::kInlineMaxSmi:
+      return ReduceMaxSmi(node);
+    case Runtime::kInlineTypedArrayMaxSizeInHeap:
+      return ReduceTypedArrayMaxSizeInHeap(node);
     case Runtime::kInlineJSCollectionGetTable:
       return ReduceJSCollectionGetTable(node);
     case Runtime::kInlineStringGetRawHashField:
@@ -317,6 +321,18 @@ Reduction JSIntrinsicLowering::ReduceGetSuperConstructor(Node* node) {
                 active_function_map, effect, control);
 }
 
+Reduction JSIntrinsicLowering::ReduceMaxSmi(Node* node) {
+  Node* value = jsgraph()->Constant(Smi::kMaxValue);
+  ReplaceWithValue(node, value);
+  return Replace(value);
+}
+
+Reduction JSIntrinsicLowering::ReduceTypedArrayMaxSizeInHeap(Node* node) {
+  Node* value = jsgraph()->Constant(FLAG_typed_array_max_size_in_heap);
+  ReplaceWithValue(node, value);
+  return Replace(value);
+}
+
 Reduction JSIntrinsicLowering::ReduceJSCollectionGetTable(Node* node) {
   Node* collection = NodeProperties::GetValueInput(node, 0);
   Node* effect = NodeProperties::GetEffectInput(node);