[PATCH] [CMake][Concept] Auto dependency scanner "tddeps" for *.td

[Joerg Sonnenberger]

On Wed, Feb 26, 2014 at 02:02:33AM +0900, NAKAMURA Takumi wrote:
> 2014-02-26 1:48 GMT+09:00 Joerg Sonnenberger <joerg at britannica.bec.de>:
> > On Tue, Feb 25, 2014 at 08:04:02AM -0800, NAKAMURA Takumi wrote:
> >> This improvement introduces;
> >>
> >> - Accurate dependencies among *.td(s).
> >
> > How is that different from the existing dependency output in tblgen?
> > I'm using that in NetBSD and it is quite reliable.
> 
> It's reliable but redundant. For example, touching irrelevant
> include/llvm/*.td affects clang-tblgen.

I don't understand what part of it is redundant. The created
dependencies are exactly the files processed by the parser.

Joerg