[4.1 PATCH] Fix tree-ssa-structalias.c on valid, though very lame code (PR tree-optimization/26865)

[Diego Novillo]

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Jakub Jelinek wrote:

> 	PR tree-optimization/26865
> 	* tree-ssa-structalias.c (find_func_aliases): Check that anyoffsetrhs
> 	type is pointer or array type.
> 
> 	* gcc.dg/pr26865.c: New test.
> 
OK.
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