SSE[23] intrinsics for gcc?

[dfeustel]

Where can I find info about using intrinsic
functions for SSE, SSE2, and SSE3 instructions
with gcc? Is there a URL?

Thanks,
Dave Feustel

 

[Robert Gamble]

Where can I find info about using intrinsic
functions for SSE, SSE2, and SSE3 instructions
with gcc? Is there a URL?

I would start by asking in a group dedicated to gcc, gnu.gcc and
gnu.gcc.help spring to mind.

Robert Gamble

 

[dfeustel]

I would start by asking in a group dedicated to gcc, gnu.gcc and
gnu.gcc.help spring to mind.

Robert Gamble

Thanks for the pointers.
I found gcc has a file, xmmintrin.h, that defines a lot of intrinsics
for SSE instructions.

 

[Erik de Castro Lopo]

Thanks for the pointers.
I found gcc has a file, xmmintrin.hthat defines a lot of intrinsics
for SSE instructions.

If you add "-msse" to the gcc command line you should be
able to use all the inline functions defined in the
xmmintrin.h header file.

However, this discussion would be better suited to the gnu.gcc.help
newsgroup.

Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo
+-----------------------------------------------------------+
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