Re: -mavx option

2012-01-26 Thread Paweł Sikora
On Thursday 26 of January 2012 09:52:22 Ulrich Drepper wrote: > I think gcc is missing an option since -mavx controls two different > things. First, the generation of VEX-encoded instructions. Second, > the use of ymm registers. The latter is not always available when the > former is and using V

-mavx option

2012-01-26 Thread Ulrich Drepper
I think gcc is missing an option since -mavx controls two different things. First, the generation of VEX-encoded instructions. Second, the use of ymm registers. The latter is not always available when the former is and using VEX-encoded instructions by themselves can have an advantage. Currentl