[Bug middle-end/86056] Codegen can result in multiple sequential mfence instructions

2018-06-06 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86056 Richard Biener changed: What|Removed |Added Keywords||missed-optimization Status|

[Bug middle-end/86056] Codegen can result in multiple sequential mfence instructions

2018-06-05 Thread redbeard0531 at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86056 --- Comment #2 from Mathias Stearn --- Oh, I agree that this optimization must be permitted. I was using this example to prove this to someone else who didn't believe that. I only mentioned that to explain how that weird source code came to be.

[Bug middle-end/86056] Codegen can result in multiple sequential mfence instructions

2018-06-05 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86056 Andrew Pinski changed: What|Removed |Added Component|target |middle-end --- Comment #1 from Andrew Pi