optimization/6164: incorrect code above optimization -O1

[rth@gcc.gnu.org]

Synopsis: incorrect code above optimization -O1

State-Changed-From-To: open->closed
State-Changed-By: rth
State-Changed-When: Thu Apr  4 02:41:22 2002
State-Changed-Why:
    Not a bug.  This code violates ISO C aliasing rules.
    With gcc, one can use a union, but even this isn't
    strictly portable.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6164