- update from gcc-4_1-branch (-r114766:115058)
  - PRs c++/27821, c++/28109, c++/28110, c++/28112, fortran/16206,
	fortran/18769, fortran/19310, fortran/19904, fortran/20867,
	fortran/20874, fortran/20876, fortran/22038, fortran/25049,
	fortran/25050, fortran/25056, fortran/25073, fortran/27554,
	fortran/27715, fortran/27784, fortran/27895, fortran/27958,
	fortran/28118, fortran/28119, libfortran/27784, libfortran/27895,
	libgcj/28178, middle-end/28045, middle-end/28151, target/27082,
	target/27861, tree-optimization/27781
- fix a reload problem that lead sometimes to writes to read-only objects
  (Bernd Schmidt, #196736, PR middle-end/26991, PR rtl-optimization/25636)
- ppc -mcpu=power6 initial support (Pete Steinmetz, #195924)