Ayonam Ray <ayonam@xxxxxxxxx> writes: > When you say convert the built-in into an asm do you mean that I > should replace the built-in itself with inline assembly in the source > that I am compiling or is that something that I can do in the expand > stage of the built-in? I will explore the latter with other ports > while I await your reply. I meant the latter: expand the builtin function to a GIMPLE_ASM. The former is fine too if it is convenient for your API. Ian