As of April 2004, support in gcc for these subjects is somewhat fresh. So far, there are three noticeable bugs.

Bug 15101 is about internal compiler errors encountered when gcc has to synthesize instructions when the CPU has no native support.

Bug 15193 occurs when optimizing certain vector extension instructions.

Lastly, there is no (real) C++ support. So far, trying to generate the operator overloads to make it work have not succeeded in gaining any speed (15193)

	Note
	Bug 15101 was fixed on 30 October 2004, 15193 on 7 June 2004, 15193 was a duplicate of 10611, and has just been fixed in cvs (11 June 2005), fix should arrive in future releases.