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 50 matching lines @@
   V(BooleanNot)               \
   V(BooleanToNumber)          \
   V(NumberEqual)              \
   V(NumberLessThan)           \
   V(NumberLessThanOrEqual)    \
   V(NumberAdd)                \
   V(NumberSubtract)           \
   V(NumberMultiply)           \
   V(NumberDivide)             \
   V(NumberModulus)            \
+  V(NumberExponentiate)       \

[Michael Starzinger, 2015/02/24 14:09:03]

This opcode is never used.

   V(NumberToInt32)            \
   V(NumberToUint32)           \
   V(PlainPrimitiveToNumber)   \
   V(ReferenceEqual)           \
   V(StringEqual)              \
   V(StringLessThan)           \
   V(StringLessThanOrEqual)    \
   V(StringAdd)                \
   V(ChangeTaggedToInt32)      \
   V(ChangeTaggedToUint32)     \
@@ skipping 143 matching lines @@
   static bool IsMergeOpcode(Value value) {
     return value == kMerge || value == kLoop;
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_