[patch] Add evaluators for SAL vector comparison functions.

[Jules Bergmann]

This patch adds dispatch to the SAL vector comparison functions (lvgtx, 
etc).

It also extends the load_view and save_view functions in vsip_csl to 
work with distributed data (this was used for the fast convolution demo).

Finally, it fixes a few miscellanea:

  - Fix the new assign() function in dispatch_assign to not strip
    the top-level 'const' from expression templates.  This was
    preventing the math library evaluators from applying.

  - Fix tests using fast_block's to use the right include path.

Patch applied.

				-- Jules
-- 
Jules Bergmann
CodeSourcery
jules at codesourcery.com
(650) 331-3385 x705
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