------- Comment #56 from baldrick at free dot fr 2008-03-30 14:26 ------- Subject: Re: VRP fails to eliminate range checks in Ada code
> > What does "must be in the range" mean? Firstly, the program behaviour is > > undefined if a variable is outside its range. > > That's not true. The reference to an invalid value doesn't result in > undefined behavior, it is a bounded error, and the result must be some > predictable non-erroneous implementation-defined behavior. This discussion continued on the gcc mailing list, starting here: http://gcc.gnu.org/ml/gcc-patches/2008-03/msg01841.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30911