------- Comment #9 from ramana at gcc dot gnu dot org 2010-03-21 13:41 ------- (In reply to comment #8) > What about just forbidding to use "q" registers in the inline assembly clobber > list? Is it difficult to do? >
It's not difficult to - The patch only penalises the cases where an s<reg> ends up clobbering another s<reg> in the same quad (or double for that matter) but the common case of the q<reg> or the d<reg> clobbering the s<reg> in the same quad is a necessity and correctness. Thus if we wanted to allow q<reg> and d<reg> in the clobber list then we need to live with this restriction. Ramana -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43440
