Ilya Lesokhin schrieb: > i want to try to do it after the IRA phase, does anyone know if it makes > sence, and if so, is there a macro which tells me that i'm after that phase?
reload_completed will tell you. You can use a splitter or a peephole, put neither of them looks tempting because handling it pre-reload will reduce the register pressure. Handling post-reload cannot reduce the register pressure. The high part will still be allocated and not used, but you don't get that resource back. To use slit you have to use a combine pattern. Note that combine won't try mem_volatile_p, so it's useless to try memory_operand in a combine pattern. _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-gcc-list
