https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69441
--- Comment #2 from John <john at jcturner dot plus.com> --- Hi, I goofed. This is not a bug. Documentation for this instruction refers to first and second source operands. Upon reflection, this refers to the Intel format and not the AT&T format used within gcc where the operands are reversed. Sorry. John -----Original Message----- From: glisse at gcc dot gnu.org [mailto:gcc-bugzi...@gcc.gnu.org] Sent: 23 January 2016 13:59 To: j...@jcturner.plus.com Subject: [Bug target/69441] pandn implemented as pand within asm https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69441 Marc Glisse <glisse at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |x86_64-*-* Status|UNCONFIRMED |WAITING Last reconfirmed| |2016-01-23 Component|c |target Ever confirmed|0 |1 --- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> --- Could you maybe give us some more details?