[PATCH] PR fortran/91296 -- Prevent ICE in aliasing check

[Steve Kargl]

The attach patch has been regression tested on x86_64-*-freebsd.
There were no regression.

The patch prevents an ICE when checking for aliasing and the
actual arguments are the real and imaginary parts of a complex
entity.  See the testcase for more information.

OK to commit to both trunk and 9-branch?

2019-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91296
	* interface.c (compare_actual_expr): When checking for aliasing, add
	a case to handle REF_INQUIRY (e.g., foo(x%re, x%i) do not alias).

2019-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91296
	* gfortran.dg/pr91296.f90: New test.

-- 
Steve
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