Boris Boesler <baembel@xxxxxx> writes: > Hi! > > Am 13.11.2007 um 19:14 schrieb Ian Lance Taylor: > > > Boris Boesler <baembel@xxxxxx> writes: > > > >> 1) As far as I can see some levels of optimization do not schedule > >> the code. To generate correct code I have to insert NOP-operations to > >> fill the delays (the architecture has no interlocks), > > ... > > > gcc is weak on VLIW support. The scheduler does not insert NOPs for > > you. > > VLIWs? As I mentioned above the processor does not wait till the > operands are evaluated; this must be done by the programmer/compiler > by inserting NOPs or other instructions. It amounts to the same thing: you need to insert NOP instructions. Ian
