[turbofan] Introduce initial support for TypedArrays.

src/compiler/machine-operator.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/machine-operator.h"
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 
@@ skipping 593 matching lines @@
   AtomicStore##Type##Operator kAtomicStore##Type;
   ATOMIC_REPRESENTATION_LIST(ATOMIC_STORE)
 #undef STORE
 
   struct DebugBreakOperator : public Operator {
     DebugBreakOperator()
         : Operator(IrOpcode::kDebugBreak, Operator::kNoThrow, "DebugBreak", 0,
                    0, 0, 0, 0, 0) {}
   };
   DebugBreakOperator kDebugBreak;
+
+  struct UnsafePointerAddOperator final : public Operator {
+    UnsafePointerAddOperator()
+        : Operator(IrOpcode::kUnsafePointerAdd, Operator::kKontrol,
+                   "UnsafePointerAdd", 2, 1, 1, 1, 1, 0) {}
+  };
+  UnsafePointerAddOperator kUnsafePointerAdd;
 };
 
 struct CommentOperator : public Operator1<const char*> {
   explicit CommentOperator(const char* msg)
       : Operator1<const char*>(IrOpcode::kComment, Operator::kNoThrow,
                                "Comment", 0, 0, 0, 0, 0, 0, msg) {}
 };
 
 static base::LazyInstance<MachineOperatorGlobalCache>::type kCache =
     LAZY_INSTANCE_INITIALIZER;
@@ skipping 97 matching lines @@
     MACHINE_REPRESENTATION_LIST(STORE)
 #undef STORE
     case MachineRepresentation::kBit:
     case MachineRepresentation::kNone:
       break;
   }
   UNREACHABLE();
   return nullptr;
 }
 
+const Operator* MachineOperatorBuilder::UnsafePointerAdd() {
+  return &cache_.kUnsafePointerAdd;
+}
+
 const Operator* MachineOperatorBuilder::DebugBreak() {
   return &cache_.kDebugBreak;
 }
 
 const Operator* MachineOperatorBuilder::Comment(const char* msg) {
   return new (zone_) CommentOperator(msg);
 }
 
 const Operator* MachineOperatorBuilder::CheckedLoad(
     CheckedLoadRepresentation rep) {
@@ skipping 42 matching lines @@
   }
   ATOMIC_REPRESENTATION_LIST(STORE)
 #undef STORE
   UNREACHABLE();
   return nullptr;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8