On Mon, Nov 8, 2010 at 12:03 AM, Andi Kleen<andi@xxxxxxxxxxxxxx> wrote:A memory clobber should clobber anything in memory, including autos in memory; if it doesn't, then that seems like a major problem. I'd like to see the rationale behind not clobbering autos in memory.Andreas Schwab<schwab@xxxxxxxxxxxxxx> writes:No. A memory clobber does not cover automatic storage.The asm fails to mention that it modifies *regs.It has a memory clobber, that should be enough, no?