[FFmpeg-devel] [flamefest-start] A little something on MMX/SSE intrinsics

Reimar Döffinger Reimar.Doeffinger
Fri Feb 29 09:52:41 CET 2008

On Fri, Feb 29, 2008 at 07:35:58AM +0100, Luca Barbato wrote:
> Michael Niedermayer wrote:
> >> gcc isn't predictable even at managing asm blocks as we could experience 
> >> with the register constrained architectures... (yes x86 again)
> > 
> > As i said at some other point in the thread i prefer a compilation failure
> > which i can fix over a silent pessimization of code i do not even know
> > about.
> > 
> That is good till you don't care if the compilation failure happens 
> because of PIC or other features you may not deem worth attention (see 
> the issue with flac routines)

Since this is the case of a compiler failing at even more than just
optimization it does not seem like a good argument to let the compiler
do even more things it can mess up...
Btw. ICC manages to fail on those even without pic, at least 10.1.008.

Reimar D?ffinger

More information about the ffmpeg-devel mailing list