[turbofan] Introduce Float64Pow and NumberPow operators.

src/full-codegen/full-codegen.cc

 // Copyright 2012 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/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopeinfo.h"
@@ skipping 501 matching lines @@
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
   VisitForStackValue(args->at(2));
   VisitForStackValue(args->at(3));
   __ CallStub(&stub);
   OperandStackDepthDecrement(4);
   context()->Plug(result_register());
 }
 
 
-void FullCodeGenerator::EmitMathPow(CallRuntime* expr) {
-  // Load the arguments on the stack and call the runtime function.
-  MathPowStub stub(isolate(), MathPowStub::ON_STACK);
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 2);
-  VisitForStackValue(args->at(0));
-  VisitForStackValue(args->at(1));
-  __ CallStub(&stub);
-  OperandStackDepthDecrement(2);
-  context()->Plug(result_register());
-}
-
-
 void FullCodeGenerator::EmitIntrinsicAsStubCall(CallRuntime* expr,
                                                 const Callable& callable) {
   ZoneList<Expression*>* args = expr->arguments();
   int param_count = callable.descriptor().GetRegisterParameterCount();
   DCHECK_EQ(args->length(), param_count);
 
   if (param_count > 0) {
     int last = param_count - 1;
     // Put all but last arguments on stack.
     for (int i = 0; i < last; i++) {
@@ skipping 1438 matching lines @@
   return var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8