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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/106743] Illegal assembly code with -march=skylake Date: Thu, 25 Aug 2022 19:35:33 +0000 [thread overview] Message-ID: <bug-106743-4-I7WexMWa4W@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-106743-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106743 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- The inline-asm is wrong. It should be: __asm__("xchgb %b0, %h0 ## %0 " : "=Q"(__tmp) : "0"(__tmp)); q Any register accessible as rl. In 32-bit mode, a, b, c, and d; in 64-bit mode, any integer register. Q Any register accessible as rh: a, b, c, and d. Because you are accessing it as rh so you need to Q rather than q.
next prev parent reply other threads:[~2022-08-25 19:35 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-08-25 19:27 [Bug c++/106743] New: " stayprivate at gmail dot com 2022-08-25 19:32 ` [Bug target/106743] " pinskia at gcc dot gnu.org 2022-08-25 19:35 ` pinskia at gcc dot gnu.org [this message] 2022-08-26 12:44 ` marxin at gcc dot gnu.org
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