[patch, fortran, committed] Fix PR 88363

[Thomas Koenig]

Hi,

I just committed the attached patch as obvious and simple. The problem
was that clobbering of intent(out) clobbered the whole variable, instead
of only the element that was actually clobbered.

There is still some optimization work that can be done here, but I will
defer that to a later date - see PR 41453.

Regards

	Thomas

2018-12-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PF fortran/88364
	* trans-expr.c (gfc_conv_expr_reference): Do not add clobber if
	the expression contains a reference.

2018-12-16  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/88364
	* intent_out_13.f90: New test.


Added:
     trunk/gcc/testsuite/gfortran.dg/intent_out_13.f90
Modified:
     trunk/gcc/fortran/ChangeLog
     trunk/gcc/fortran/trans-expr.c
     trunk/gcc/testsuite/ChangeLog
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