[Bug middle-end/52831] extract_bit_field_1: issue when str_rtx unsafe from target

[aurelien.buhrig.gcc at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52831

--- Comment #1 from Aurelien Buhrig <aurelien.buhrig.gcc at gmail dot com> 
2012-04-02 09:42:28 UTC ---
Created attachment 27062
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27062
Fix