[Issue 7954] x86_64 Windows fibers do not save nonvolatile XMM registers

Wed Nov 14 09:15:49 PST 2012

http://d.puremagic.com/issues/show_bug.cgi?id=7954

Manu <turkeyman at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |turkeyman at gmail.com

--- Comment #1 from Manu <turkeyman at gmail.com> 2012-11-14 09:09:52 PST ---
(In reply to comment #0)
> According to MSDN (http://msdn.microsoft.com/en-us/library/9z1stfyw.aspx), the
> XMM6-XMM15 registers are nonvolatile on x64 Windows. The current implementation
> of core.thread.Fiber for this platform does not preserve them.

Are you using the unreleased DMD-win64 (2.061)?
I'm finding it just crashes and doesn't work at all.

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