[Bug target/54239] Not able to generate "prefetch" (prefetch read) instruction using -m3dnow or -mprfchw

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54239

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-13 14:00:55 UTC ---
BTW, why do you care about the prefetch insn?  Isn't it obsoleted by the SSE
ISA prefetches anyway (unlike prefetchw)?