On 23/11/15 21:02, David Wohlferd wrote: >> On 11/23/2015 2:04 AM, Andrew Haley wrote: >> > My warning still holds: there are modes of compilation on some >> > machines where you can't clobber all registers without causing reload >> > failures. This is why Jeff didn't fix this in 1999. So, if we really >> > do want to clobber "all" registers in basic asm it'll take a lot of >> > work. > > I was always reluctant to see this change made. In addition to the > issues you mention, I had questions about the impact on the surrounding > code. I like Richard's direction much better. We can start with a > disabled warning, then upgrade as seems warranted.
I don't see any problem with unconditionally clobbering memory. Andrew.