------- Comment #4 from mtodorov at alu dot hr 2006-03-12 18:06 ------- Subject: Re: Wrong assembly generated with -O2, -O OK for cinelerra source item
On Sun, 12 Mar 2006, pinskia at gcc dot gnu dot org wrote: > ------- Comment #3 from pinskia at gcc dot gnu dot org 2006-03-12 18:01 > ------- > (In reply to comment #2) > The inline-asm is just wrong. X means any register or memory which means it > could pick esp or xmm3 without caring that much. > > Also the code is hiding all the mmx register uses from the compiler so the > compiler could mess up and use one of those. I cannot question your expertise on this. Why then -O passes, and does it generate right code? Does 4.0.3 do the worng thing when compiling this without complaint? How can I know that this modification to assembly I've been given now will not cause libjpeg-mmx to work wrong in subtle ways? (I am not an expert in nasm assembly ..., :-( Sincerely, Mirsad -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26653
