2011-11-23 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/48455
* doc/invoke.texi (-fira-region): Document default values.
* flags-types.h (enum ira_region): Add new value
IRA_REGION_AUTODETECT.
* common.opt (fira-region): Set up initial value to
IRA_REGION_AUTODETECT.
* toplev.c (process_options): Set up flag_ira_region depending on
-O options.
* ira.c (ira.c): Remove optimize guard for ira_build.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181675 138bc75d-0d04-0410-961f-82ee72b054a4