Reflow comments to use the full width.

src/IceAPFloat.h

 //===-- subzero/src/IceAPFloat.h - Constant float conversions --*- C++ -*--===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
 /// \brief This file implements a class to represent Subzero float and double
 /// values.
 ///
-/// Note: This is a simplified version of
-/// llvm/include/llvm/ADT/APFloat.h for use with Subzero.
+/// Note: This is a simplified version of llvm/include/llvm/ADT/APFloat.h for
+/// use with Subzero.
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ICEAPFLOAT_H
 #define SUBZERO_SRC_ICEAPFLOAT_H
 
 #include "IceAPInt.h"
 
 namespace Ice {
 
 template <typename IntType, typename FpType>
 inline FpType convertAPIntToFp(const APInt &Int) {
   static_assert(sizeof(IntType) == sizeof(FpType),
                 "IntType and FpType should be the same width");
   assert(Int.getBitWidth() == sizeof(IntType) * CHAR_BIT);
   union {
     IntType IntValue;
     FpType FpValue;
   } Converter;
   Converter.IntValue = static_cast<IntType>(Int.getRawData());
   return Converter.FpValue;
 }
 
 } // end of namespace Ice
 
 #endif //  SUBZERO_SRC_ICEAPFLOAT_H