optimization/7476: constant variable tested in loop

[bangerth@dealii.org]

Synopsis: constant variable tested in loop

State-Changed-From-To: open->closed
State-Changed-By: bangerth
State-Changed-When: Fri Dec  6 13:35:33 2002
State-Changed-Why:
    This works on the mainline, i.e. what will become 3.3

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7476