[turbofan] Introduce Float64Pow and NumberPow operators.

src/compiler/ia32/code-generator-ia32.cc

 // 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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 664 matching lines @@
       break;
     case kIeee754Float64Log1p:
       ASSEMBLE_IEEE754_UNOP(log1p);
       break;
     case kIeee754Float64Log2:
       ASSEMBLE_IEEE754_UNOP(log2);
       break;
     case kIeee754Float64Log10:
       ASSEMBLE_IEEE754_UNOP(log10);
       break;
+    case kIeee754Float64Pow: {
+      // TODO(bmeurer): Improve integration of the stub.
+      if (!i.InputDoubleRegister(1).is(xmm2)) {
+        __ movaps(xmm2, i.InputDoubleRegister(0));
+        __ movaps(xmm1, i.InputDoubleRegister(1));
+      } else {
+        __ movaps(xmm0, i.InputDoubleRegister(0));
+        __ movaps(xmm1, xmm2);
+        __ movaps(xmm2, xmm0);
+      }
+      MathPowStub stub(isolate(), MathPowStub::DOUBLE);
+      __ CallStub(&stub);
+      __ movaps(i.OutputDoubleRegister(), xmm3);
+      break;
+    }
     case kIeee754Float64Sin:
       ASSEMBLE_IEEE754_UNOP(sin);
       break;
     case kIeee754Float64Tan:
       ASSEMBLE_IEEE754_UNOP(tan);
       break;
     case kIA32Add:
       if (HasImmediateInput(instr, 1)) {
         __ add(i.InputOperand(0), i.InputImmediate(1));
       } else {
@@ skipping 1342 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8