diff --git a/src/ia32/codegen-ia32.h b/src/ia32/codegen-ia32.h
index f4ab0b5..2382388 100644
--- a/src/ia32/codegen-ia32.h
+++ b/src/ia32/codegen-ia32.h
@@ -1,76 +1,16 @@
 // Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef V8_IA32_CODEGEN_IA32_H_
 #define V8_IA32_CODEGEN_IA32_H_
 
-#include "ast.h"
-#include "ic-inl.h"
+#include "src/ast.h"
+#include "src/macro-assembler.h"
 
 namespace v8 {
 namespace internal {
 
-// Forward declarations
-class CompilationInfo;
-
-// -------------------------------------------------------------------------
-// CodeGenerator
-
-class CodeGenerator {
- public:
-  // Printing of AST, etc. as requested by flags.
-  static void MakeCodePrologue(CompilationInfo* info);
-
-  // Allocate and install the code.
-  static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
-                                       Code::Flags flags,
-                                       CompilationInfo* info);
-
-  // Print the code after compiling it.
-  static void PrintCode(Handle<Code> code, CompilationInfo* info);
-
-  static bool ShouldGenerateLog(Expression* type);
-
-  static bool RecordPositions(MacroAssembler* masm,
-                              int pos,
-                              bool right_here = false);
-
-
-  static Operand FixedArrayElementOperand(Register array,
-                                          Register index_as_smi,
-                                          int additional_offset = 0) {
-    int offset = FixedArray::kHeaderSize + additional_offset * kPointerSize;
-    return FieldOperand(array, index_as_smi, times_half_pointer_size, offset);
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
-};
-
 
 class StringCharLoadGenerator : public AllStatic {
  public:
@@ -88,6 +28,20 @@
   DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
 };
 
+
+class MathExpGenerator : public AllStatic {
+ public:
+  static void EmitMathExp(MacroAssembler* masm,
+                          XMMRegister input,
+                          XMMRegister result,
+                          XMMRegister double_scratch,
+                          Register temp1,
+                          Register temp2);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MathExpGenerator);
+};
+
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_CODEGEN_IA32_H_