[PATCH] Fix Fortran/29410, transfer vs -O2

[Andrew Pinski]

The problem here is that the Fortran front-end creates "*(typeof<mold>
*)&source" which is not alias friendly at all.  We should be using
VIEW_CONVERT_EXPR instead which is more aliasing friendly.
This patch changes the front-end to produce VCE.

OK? Bootstrapped and tested on i686-linux-gnu with no regressions.

Thanks,
Andrew Pinski

fortran/ChangeLog:

	* trans-intrinsic.c (gfc_conv_intrinsic_array_transfer):
	Change over to create VIEW_CONVERT_EXPR instead of using an
	ADDR_EXPR, a cast and then an indirect reference.

testsuite/ChangeLog:

	* gfortran.fortran-torture/execute/transfer1.f90: New test.
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