optimization/8613: [3.2/3.3/3.4 regression] -O2 optimization generates wrong code

[Glen Nakamura]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8613

Someone with write access should checkin this patch:
http://gcc.gnu.org/ml/gcc-patches/2003-02/msg01531.html

Patch approval is here:
http://gcc.gnu.org/ml/gcc-patches/2003-02/msg01578.html

FYI, I've only regtested this patch on the 3.3 branch.