Amund Fjellheim <[EMAIL PROTECTED]> writes: > Anyone fixing the documentation, then?
Volunteers are always welcome. Ian > Den 1. aug. 2006 kl. 15.51 skrev Ian Lance Taylor: > > > Amund Fjellheim <[EMAIL PROTECTED]> writes: > > > >> GCC has some support for vector instructions through typedef'ed types > >> like this: > >> typedef int v4si __attribute__ ((vector_size (16))); > >> > >> Some normal C operators can be done on these and there are some > >> platform specific built in functions. The X86 functions are listed at > >> http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/X86-Built_002din- > >> Functions.html#X86-Built_002din-Functions , but there are lots of > >> SSE2 instructions missing. Why? I don't see how it could be so hard > >> to implement > >> > >> v4si __builtin_ia32_pslld(v4si, int) > >> > >> and so on, when so many other SSE and SSE2 instructions are there. > >> Also, why aren't they available for C++ programs compiled with g++? > >> > >> Will these things be fixed in future releases of gcc? Anyone know > >> something about the status on this? > > > > It is a documentation failure. gcc's current goal is to implement the > > Intel intrinsic functions, providing mmintrin.h and friends: > > http://www.intel.com/cd/ids/developer/asmo-na/eng/59644.htm > > > > So, to get pslld, you would use _m_pslld or _m_pslldi, etc. > > > > Ian
