Builtin-optimization testsuite reorg

[Joseph S. Myers]

On Fri, 2 Jul 2004, Zack Weinberg wrote:

> is now rejected at compile time.  It's not possible to do anything
> else within the c-torture/execute/ harness, but fortunately there's
> another harness specifically designed for this sort of test:
> c-torture/execute/builtins/.  Accordingly, this patch moves all of the

And some tests of built-in functions in gcc.dg/.  And some in
gcc.dg/torture/.  There should be some logic as to which go where, but I
don't think it's being consistently followed.

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
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