On 12/17/2015 02:41 AM, David Wohlferd wrote:
So how about:
- Update the basic asm docs to describe basic asm's current (and
historical) semantics (ie clobber nothing).
- Emphasize how that might be different from users' expectations or the
behavior of other compilers.
- Warn that this could change in future versions of gcc. To avoid
impacts from this change, use extended.
- Mention -Wonly-top-basic-asm as a way to locate affected statements.
Sounds like a pretty reasonable plan.
What's your take on making -Wonly-top-basic-asm a default (either now or
v7)? Is making it a non-default a waste of time because no one will
ever see it? Or is making it a default too aggressive? What about
adding it to -Wall?
Depends if anyone has one in system headers I guess. We could try to add
it to -Wall.
Bernd
