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 57 matching lines @@
 #define SIMPLIFIED_OP_LIST(V)      \
   SIMPLIFIED_COMPARE_BINOP_LIST(V) \
   V(AnyToBoolean)                  \
   V(BooleanNot)                    \
   V(BooleanToNumber)               \
   V(NumberAdd)                     \
   V(NumberSubtract)                \
   V(NumberMultiply)                \
   V(NumberDivide)                  \
   V(NumberModulus)                 \
+  V(NumberExponentiate)            \
   V(NumberToInt32)                 \
   V(NumberToUint32)                \
   V(PlainPrimitiveToNumber)        \
   V(StringAdd)                     \
   V(ChangeTaggedToInt32)           \
   V(ChangeTaggedToUint32)          \
   V(ChangeTaggedToFloat64)         \
   V(ChangeInt32ToTagged)           \
   V(ChangeUint32ToTagged)          \
   V(ChangeFloat64ToTagged)         \
@@ skipping 149 matching lines @@
            (kNumberEqual <= value && value <= kStringLessThanOrEqual) ||
            (kWord32Equal <= value && value <= kFloat64LessThanOrEqual);
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_