lkml.org 
[lkml]   [2013]   [Nov]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectDoes Itanium permit speculative stores?
Hello, Tony,

Does Itanium permit speculative stores? For example, on Itanium what are
the permitted outcomes of the following litmus test, where both x and y
are initially zero?

CPU 0 CPU 1

r1 = ACCESS_ONCE(x); r2 = ACCESS_ONCE(y);
if (r1) if (r2)
ACCESS_ONCE(y) = 1; ACCESS_ONCE(x) = 1;

In particular, is the outcome (r1 == 1 && r2 == 1) possible on Itanium
given this litmus test?

Thanx, Paul



\
 
 \ /
  Last update: 2013-11-11 19:01    [W:0.104 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site