http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56354
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
Severity|major |normal
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-02-16
03:53:07 UTC ---
i * 400000000 overflows when i is 6 which is causing the code to turn into an
infinite loop. Use the option -fwrapv or -fno-aggressive-loop-optimizations to
workaround your issue.
A simple printf added shows the issue:
i=0, i*X=0
i=1, i*X=400000000
i=2, i*X=800000000
i=3, i*X=1200000000
i=4, i*X=1600000000
i=5, i*X=2000000000
i=6, i*X=-1894967296
