On Sat, 29 Sep 2012, Marc Glisse wrote:

> 1) it handles constant folding of vector comparisons,
>
> 2) it fixes another place where vectors are not expected

Here is a new version of this patch.

In a first try, I got bitten by the operator priorities in "a && b?c:d", 
which g++ doesn't warn about.


2012-10-12  Marc Glisse  <marc.glisse@inria.fr>

gcc/
 	* tree-ssa-forwprop.c (forward_propagate_into_cond): Handle vectors.
 	* fold-const.c (fold_relational_const): Handle VECTOR_CST.

gcc/testsuite/
 	* gcc.dg/tree-ssa/foldconst-6.c: New testcase.

-- 
Marc Glisse