Date: Thu, 11 Jun 2026 06:56:25 -0700
On Wednesday, 10 June 2026 21:24:30 Pacific Daylight Time Tiago Freire via Std-
Discussion wrote:
> Neither your compiler nor your cpu respects that and the standard at least
> implicitly acknowledges this.
For the x86 world: while instructions may execute out-of-order, they are
*retired* in order which means all effects appear in order to the outside
world. It should be impossible to tell what executed out-of-order, except for
a few dedicated instructions.
Discussion wrote:
> Neither your compiler nor your cpu respects that and the standard at least
> implicitly acknowledges this.
For the x86 world: while instructions may execute out-of-order, they are
*retired* in order which means all effects appear in order to the outside
world. It should be impossible to tell what executed out-of-order, except for
a few dedicated instructions.
-- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Principal Engineer - Intel Data Center - Platform & Sys. Eng.
Received on 2026-06-11 13:56:30