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* [Bug target/63672] xbegin/xend/xabort missing memory barriers [not found] <bug-63672-4@http.gcc.gnu.org/bugzilla/> @ 2015-08-20 23:27 ` bergner at gcc dot gnu.org 2024-02-16 6:32 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 2+ messages in thread From: bergner at gcc dot gnu.org @ 2015-08-20 23:27 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63672 Peter Bergner <bergner at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bergner at gcc dot gnu.org --- Comment #1 from Peter Bergner <bergner at gcc dot gnu.org> --- Andi, did this bug ever get fixed? I ask, since we're hitting a similar issue on POWER with our __builtin_tbegin() builtin. I know we need a minimum of a memory barrier on our HTM builtins, but I also wonder whether a full optimization barrier is needed to stop even non loads and stores from being moved outside of the transaction body. The following shows a test case that seems to need a full optimization barrier: https://www.sourceware.org/ml/libc-alpha/2015-08/msg00880.html ^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/63672] xbegin/xend/xabort missing memory barriers [not found] <bug-63672-4@http.gcc.gnu.org/bugzilla/> 2015-08-20 23:27 ` [Bug target/63672] xbegin/xend/xabort missing memory barriers bergner at gcc dot gnu.org @ 2024-02-16 6:32 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 2+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-02-16 6:32 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63672 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2024-02-16 Status|UNCONFIRMED |NEW Keywords| |wrong-code Ever confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This patch was never applied, though I am not 100% sure it even matters as x86 RTM is not really used anywhere. ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2024-02-16 6:32 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <bug-63672-4@http.gcc.gnu.org/bugzilla/> 2015-08-20 23:27 ` [Bug target/63672] xbegin/xend/xabort missing memory barriers bergner at gcc dot gnu.org 2024-02-16 6:32 ` pinskia at gcc dot gnu.org
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