[Patch, fortran] PR56477 ICE on pointer assignment checking

[Mikael Morin]

Hello,

I'm testing the attached patch which fixes the PR56477 test case.

Will commit as obvious tonight.

Mikael


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2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/56477
	* expr.c (gfc_check_pointer_assign): Avoid NULL pointer dereference.

2013-03-03  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/56477
	* gfortran.dg/pointer_check_13.f90: New test.


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