Fix performance regression on Tracer: recognize _doublePow in Math.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 61 matching lines @@
   V(_StringBase, [], StringBaseCharAt, 924930519)                              \
   V(_OneByteString, _setAt, OneByteStringSetAt, 456985263)                     \
   V(_IntegerImplementation, toDouble, IntegerToDouble, 2141284842)             \
   V(_IntegerImplementation, _leftShiftWithMask32, IntegerLeftShiftWithMask32,  \
       964472615)                                                               \
   V(_Double, toInt, DoubleToInteger, 1580473283)                               \
   V(_Double, truncateToDouble, DoubleTruncate, 849350203)                      \
   V(_Double, roundToDouble, DoubleRound, 500368418)                            \
   V(_Double, floorToDouble, DoubleFloor, 763548522)                            \
   V(_Double, ceilToDouble, DoubleCeil, 976697019)                              \
-  V(_Double, pow, DoublePow, 1240251670)                                       \
   V(_Double, _modulo, DoubleMod, 1850917533)                                   \
   V(::, sqrt, MathSqrt, 465520247)                                             \
   V(::, sin, MathSin, 730107143)                                               \
   V(::, cos, MathCos, 1282146521)                                              \
   V(::, min, MathMin, 1584022354)                                              \
   V(::, max, MathMax, 328632232)                                               \
+  V(::, _doublePow, MathDoublePow, 2002448359)                                 \
   V(Float32x4, Float32x4., Float32x4Constructor, 1876089990)                   \
   V(Float32x4, Float32x4.zero, Float32x4Zero, 1903586222)                      \
   V(Float32x4, Float32x4.splat, Float32x4Splat, 38462589)                      \
   V(_Float32x4, shuffle, Float32x4Shuffle, 713523911)                          \
   V(_Float32x4, get:x, Float32x4ShuffleX, 1019523296)                          \
   V(_Float32x4, get:y, Float32x4ShuffleY, 710282243)                           \
   V(_Float32x4, get:z, Float32x4ShuffleZ, 1612806041)                          \
   V(_Float32x4, get:w, Float32x4ShuffleW, 1113701403)                          \
   V(_Float32x4, get:signMask, Float32x4GetSignMask, 465347632)                 \
   V(_Float32x4, _cmpequal, Float32x4Equal, 1559121703)                         \
@@ skipping 6238 matching lines @@
  private:
   const MethodRecognizer::Kind recognized_kind_;
 
   DISALLOW_COPY_AND_ASSIGN(DoubleToDoubleInstr);
 };
 
 
 class InvokeMathCFunctionInstr : public Definition {
  public:
   InvokeMathCFunctionInstr(ZoneGrowableArray<Value*>* inputs,
-                           InstanceCallInstr* instance_call,
+                           intptr_t original_deopt_id,
                            MethodRecognizer::Kind recognized_kind);
 
   static intptr_t ArgumentCountFor(MethodRecognizer::Kind recognized_kind_);
 
   const RuntimeEntry& TargetFunction() const;
 
   MethodRecognizer::Kind recognized_kind() const { return recognized_kind_; }
 
   DECLARE_INSTRUCTION(InvokeMathCFunction)
   virtual CompileType ComputeType() const;
@@ skipping 382 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_