On Thursday 21 December 2006 02:38, Gabriel Dos Reis wrote: > Paul Brook <[EMAIL PROTECTED]> writes: > | > Compiler can optimize it any way it wants, > | > as long as result is the same as unoptimized one. > | > | We have an option for that. It's called -O0. > | > | Pretty much all optimization will change the behavior of your program. > | The important distinction is whether that difference is observable in > | valid programs. The whole point of langage standards is that they define > | what constitutes a valid program. > > The problem is that what constitutes a valid program tends to differ > from what constitutes a useful program found in the wild. The > question for GCC is how to accomodate for the useful uses without > getting far away from both conformance and non-conformance.
I never said any different. If fact you'll notice that later in the same email (which you have cut) I said pretty much the same thing. The post I was replying to wasn't suggesting that we should support specific cases of nonconforming code, it was saying that we shouldn't change the behavior of *any* code. Paul
