[cairo-bugs] [Bug 103559] Incorrect code generation for atomic operations if HAVE_INTEL_ATOMIC_PRIMITIVES defined

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103559

--- Comment #2 from Adrian Johnson <ajohnson at redneon.com> ---
I would just use __sync_fetch_and_add(x, 0) for the get. The C++11 atomics were
added in gcc 4.7 (about 5 years ago). Anyone caring about speed should be using
a recent version of gcc.

What version of gcc were you using? Maybe the old versions that don't support
C++11 atomics do not optimize away the read.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.cairographics.org/archives/cairo-bugs/attachments/20171106/9ba00994/attachment.html>