------- Comment #4 from hjl dot tools at gmail dot com 2009-04-26 19:03 ------- (In reply to comment #3) > (In reply to comment #1) > > Created an attachment (id=17716) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17716&action=view) [edit] > > A patch > > > > Since "%z' never really worked on integer instructions, this > > patch makes "%Z" for integer instructions only while providing > > backward compatibility for existing asm statements. > > But this issue arises because users want %z on integer insn! > > My proposal is, to enhance %Z to handle all x87 operands/instructions and > leave > %z for integer instructions. I hope there is no users of %z with x87 insns. >
It may break existing working asm statements with "%z" on x87 instructions. Since "%z" never really worked on asm statements with "%z" on integer insns, there is little risk to break existing working asm statements with "%z" for my proposal. With older gcc, asm statements with "%z" on integer insns don't work. With fixed gcc, they can use "%Z". -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39911
