optimization/7726: Fails to produce the correct implementation-dependant output for loop optimization under x86 -> optimizes away a loop that should complete

[bangerth@dealii.org]

Synopsis: Fails to produce the correct implementation-dependant output for loop optimization under x86 -> optimizes away a loop that should complete

State-Changed-From-To: open->feedback
State-Changed-By: bangerth
State-Changed-When: Fri Dec  6 13:01:29 2002
State-Changed-Why:
    Hm, the code goes into an endless loop on my system also
    without optimization and with all the compilers I have
    (i.e. gcc2.95, 3.0, 3.2, 3.2.2pre, 3.3pre, and icc7).
    Are you sure that the overflow you are exploiting is
    really defined in ISO C?

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7726