On Wed, Mar 05, 2014 at 10:39:51AM +0400, Yury Gribov wrote: > >What is volatile instructions? Can you give us an example? > > Check volatile_insn_p. AFAIK there are two classes of volatile instructions: > * volatile asm > * unspec volatiles (target-specific instructions for e.g. protecting > function prologues) > > -Y Thanks.