[COFF] Re: Conditions, AKA exceptions.

On 3/13/23, Ralph Corderoy <ralph(a)inputplus.co.uk> wrote: Exceptions play merry hell with compiler optimizations. If you are in a piece of code where an exception can occur, unless you have knowledge of the global side-effects of the handler(s) that might get invoked you must abandon any attempts to do data flow analysis of global data items. The C++ Standard Library is fond of using throw and catch exception handling. An optimizing compiler pretty much has to throw all data flow optimization involving global variables, or things passed to a callee by pointer, if anything in the call chain calls a C++ Standard Library routine. From a compiler writer's perspective, the name STD for the C++ Standard Library is most apt. STD routines are a disease that infects anything that touches them. -Paul W.