Where does one go to ask about testsuites?

[Scott Robert Ladd]

Where do I ask questions about the testing process and the test suite?
Yes, I have read http://gcc.gnu.org/install/test.html.

If, for example, I want to add a test to the suite, in reflection of a
patch that I'm submitting, what is the policy? Should the test suite 
patch be separate from the patch for the code being tested-- e.g., if I 
submit a patch that adds structure returns to gfortran, do I submit a 
separate patch with an extension of the testsuite related to that new 
feature?

Is there any sort of policy that requires that each significant feature 
be accompanied by a corresponding test?

I'm also a bit confused about the required software to do the job right.
For example, the gcc/contrib/test_summary script does not appear to be
e-mailing anything, even though I have (I believe) all the appropriate
software (deja gnu, mail, tcl, etc.) in place.

Finally I'm having unusually bad test results with tree-ssa on 
x86_64-unknown-linux-gnu, while the testsuite seems to run as expected 
on i686-pc-linux-gnu. I'm using the same CVS pull on both systems, yet 
the x86_64 testsuite is reporting thousands of errors. Could that be 
because I've used --disable-multilib?

Thank you in advance for any illumination.

-- 
Scott Robert Ladd
Coyote Gulch Productions (http://www.coyotegulch.com)
Software Invention for High-Performance Computing