This is the mail archive of the crossgcc@sourceware.org mailing list for the crossgcc project.
See the CrossGCC FAQ for lots more information.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
I don't understand the use of match_dup, even if I've read GCC Internals. For example, in mips.md, (define_expand "seq" [(set (match_operand:SI 0 "register_operand" "=d") (eq:SI (match_dup 1) (match_dup 2)))] .... and in i386.md, (define_expend "seq" [(match_dup 1) (set (match_operand:QI 0 "register_operand" "") (eq:QI (cc0) (const_int 0)))] ...... What does "match_dup" means in the two patterns? ___________________________________________________________ 雅虎1G免费邮箱百分百防垃圾信 http://cn.mail.yahoo.com/ ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sourceware.org
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |