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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
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[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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