SSE SSE2 and SSE3 for GNU C++

Question

Is there a simple tutorial for me to get up to speed in SSE, SSE2 and SSE3 in GNU C++? How can you do code optimization in SSE?

Answer 1

Check out the -mtune and -march options, -msse*, and -mfpmath of course. All of those enable GCC to do SSE-specific optimizations.

Anything beyond that is the realm of Assembler, I am afraid.

GCC Online Manual - i386 and x86_64 Options