On 16/05/16 04:51, Tom Udale wrote: > My main fear is that the optimizer will look at the empty assembly "" > block and say "wait a minute, nothing is happening in there, how can it > possibly jump"? It won't: GCC does not inspect asms to see if they do anything. Besides, if you are really worried about that you can put a "do nothing" comment into the asm. I think your reasoning about asm goto is sound. The only real problem you'll have is that GCC will to remove statements which it knows have no side effects. Andrew.
