optimization/5186: -O works; -O2 doesn't; partial assignment through cast to smaller type

Wed Apr 3 01:48:00 GMT 2002

Synopsis: -O works; -O2 doesn't; partial assignment through cast to smaller type

State-Changed-From-To: open->closed
State-Changed-By: rth
State-Changed-When: Wed Apr  3 01:48:17 2002
State-Changed-Why:
    Not a bug.  This code violates ISO C aliasing rules.
    Use a union instead.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5186