On Sat, Jul 30, 2011 at 19:08, Jakub Jelinek <ja...@redhat.com> wrote: > And for bigger HARD_REG_SET, making it a struct would mean that all > functions that use HARD_REG_SET in a read-only way and thus are passed > a HARD_REG_SET argument rather than HARD_REG_SET * suddenly copy the whole > bitset
The fix could be to add an IPA pass that changes pass-by-value to pass-by-reference when possible. Paolo
