Implement experimental exponentiation operator

src/compiler/opcodes.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_OPCODES_H_
 #define V8_COMPILER_OPCODES_H_
 
 // Opcodes for control operators.
 #define INNER_CONTROL_OP_LIST(V) \
   V(Dead)                        \
@@ skipping 63 matching lines @@
   V(JSBitwiseAnd)                \
   V(JSShiftLeft)                 \
   V(JSShiftRight)                \
   V(JSShiftRightLogical)
 
 #define JS_ARITH_BINOP_LIST(V) \
   V(JSAdd)                     \
   V(JSSubtract)                \
   V(JSMultiply)                \
   V(JSDivide)                  \
-  V(JSModulus)
+  V(JSModulus)                 \
+  V(JSExponentiate)
 
 #define JS_SIMPLE_BINOP_LIST(V) \
   JS_COMPARE_BINOP_LIST(V)      \
   JS_BITWISE_BINOP_LIST(V)      \
   JS_ARITH_BINOP_LIST(V)
 
 #define JS_LOGIC_UNOP_LIST(V) V(JSUnaryNot)
 
 #define JS_CONVERSION_UNOP_LIST(V) \
   V(JSToBoolean)                   \
@@ skipping 226 matching lines @@
            (kNumberEqual <= value && value <= kStringLessThanOrEqual) ||
            (kWord32Equal <= value && value <= kFloat64LessThanOrEqual);
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_