RE: permit unary plus to be used with vector types

["Dave Korn" <dk at artimi dot com>]

> -----Original Message-----
> From: gcc-owner On Behalf Of Jan Beulich
> Sent: 18 May 2004 17:07

> Having put together these I'd like to understand three things:
> 
> a) Since there doesn't seem to be a mechanism to generate source files
> from templates in the test suite, and since completely testing all
> possible combinations would require adding 460 files, what is 
> the proper
> way to go? Add this large a set of files, or invent a mechanism to
> create source files on the fly from a template (or is there one and I
> failed to identify it)?

  Is there some fundamentally deep reason why you couldn't either add or
generate (as the case may turn out to be) a single source file with 460
tests in it?

> b) Since there doesn't seem to be a way to re-use test sources from
> different branches of the tree, the above number would even further
> increase (i.e. these vector tests need to be in the execute branch to
> verify the compiler generates correct generic code, but they 
> should also
> be in one of the possible places where they would just get 
> compiled, 

  Nope, I think it's ok: if they fail to compile, they probably won't
execute either!

> just for certain architectures [which have some hardware support for
> vector mode operations]). 

  That can be done by specifying targets to include/exclude the tests from,
perhaps using the test-case-options-inside-comment-strings (as used in the
gcc.dg subtree, perhaps)?  I know there's some way to make tests
target-specific, but don't fully know how it works.

> c) Since, in the case of having to add at least one full set of files
> in one of the subtrees, I'd like to also provide a script for 
> automated
> updating of these source files: How does one specify (within a patch)
> that a certain file will need to be created with execute permission?

  Isn't making the first line "#!/bin/sh" enough for most *nixen?

    cheers, 
      DaveK
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