http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46793
--- Comment #4 from Changpeng Fang <changpeng.fang at amd dot com> 2010-12-03 21:24:06 UTC --- Thanks, I understand the issue now. Yes, -fschedule-insns and -fsched-pressure should be a paired options for x86. -fsched-pressure does not solve the -m32 issue.