[Bug bootstrap/54795] [4.8 Regression] Random profiledbootstrap failure with LTO

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54795



--- Comment #19 from H.J. Lu <hjl.tools at gmail dot com> 2012-11-24 17:03:13 
UTC ---

The same issue can be reproduced with this patch:



diff --git a/gcc/lto-opts.c b/gcc/lto-opts.c

index a235f41..cd3730b 100644

--- a/gcc/lto-opts.c

+++ b/gcc/lto-opts.c

@@ -19,6 +19,7 @@ You should have received a copy of the GNU General Public

License

 along with GCC; see the file COPYING3.  If not see

 <http://www.gnu.org/licenses/>.  */



+#define BAD_LTO

 #include "config.h"

 #include "system.h"

 #include "coretypes.h"

diff --git a/gcc/opts.h b/gcc/opts.h

index b6a4361..14a31e4 100644

--- a/gcc/opts.h

+++ b/gcc/opts.h

@@ -122,7 +122,11 @@ struct cl_option_state {

   char ch;

 };



+#ifdef BAD_LTO

+extern const struct cl_option *cl_options;

+#else

 extern const struct cl_option cl_options[];

+#endif

 extern const unsigned int cl_options_count;

 extern const char *const lang_names[];

 extern const unsigned int cl_lang_count;