[PATCH] Don't disallow copyprop for virtual ops for loop depth check

[Andrew Pinski]

> ChangeLog:
> 
> 	* tree-ssa-dom.c (cprop_operand): Ignore the loop depth when
> 	copyproping on virtual operands.
> 	(propagate_rhs_into_lhs): Likewise.
> 	* tree-ssa-copy.c (copy_prop_visit_phi_node): Likewise.
> 
> 	* gcc.c-torture/compile/pr29922.c: New test.
> 	* gfortran.fortran-torture/compile/pr29922.f: New test.

Lets try that with the patch this time.

-- Pinski
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