[RFA] More type narrowing in match.pd V2

[Bernhard Reutner-Fischer]

On May 2, 2015 2:36:02 AM GMT+02:00, Jeff Law <law@redhat.com> wrote:
>Here's an updated patch to add more type narrowing to match.pd.
>
>Changes since the last version:
>
>Slight refactoring of the condition by using types_match as suggested
>by 
>Richi.  I also applied the new types_match to 2 other patterns in 
>match.pd where it seemed clearly appropriate.
>
>Additionally the transformation is restricted by using the new 
>single_use predicate.  I didn't change other patterns in match.pd to
>use 
>the new single_use predicate.  But some probably could be changed.
>
>This (of course) continues to pass the bootstrap and regression check 
>for x86-linux-gnu.
>
>There's still a ton of work to do in this space.  This is meant to be
>an 
>incremental stand-alone improvement.
>
>OK now?

I should find time to commit the already approved auto-wipe dump file patch.
So let's assume I'll get to it maybe next weekend and nobody will notice the 2 leftover .original dumps in this patch :)

Cheers,