avx register variables

[Gábor Buella]

Hello,

With gcc 4.7, on Intel 64 I have trouble using avx register global variables:

register unsigned int something __asm__("xmm2") __attribute__
((__vector_size__ (16)));

works fine, but

register unsigned int something __asm__("ymm2") __attribute__
((__vector_size__ (32)));

results in "error: invalid register name for something"

Is it at all possible to use the YMM registers as variables? If yes, how?

ps the ralated builtin functions are recognized, -mavx argument used.

- Gabor