[theora-dev] Issues with Win32 MMX code
giles at xiph.org
Tue Feb 3 14:24:55 PST 2009
On Tue, Feb 3, 2009 at 1:07 PM, John Ridges <jridges at masque.com> wrote:
> It seems a reasonable solution for the VC compiler, but seeing as this
> code is very
> unlikely to change in the future it seems a shame to force a performance
> hit on the
> GCC version because of a Microsoft bug.
The MSVC assembly has always been separate, because the two compilers
have incompatible inline assembly syntax. As I understand the
proposal, only the dec/x86_vc files would be converted to intrinsics.
This is expected to generate slower code, but avoid the MSVC code
generation bug. GCC output would be unchanged.
More information about the theora-dev