[Patch, fortran] PR78619 - [6/7/8 Regression] ICE in copy_reference_ops_from_ref, at tree-ssa-sccvn.c:889

[Paul Richard Thomas <paul dot richard dot thomas at gmail dot com>]

This regression arose from the patch for PR66465, in which the type
check for the associated intrinsic was failing when testing the
association of a procedure pointer component with a procedure pointer.
See the comment in the patch for an explanation as to why this is an
issue. The fix is to isolate the fix for PR66465 to calls from
gfc_check_associated.

Bootstrapped and regtested on FC23/x86_64. OK for all three branches?

Cheers

Paul

2017-11-08  Paul Thomas  <pault@gcc.gnu.org>

    PR fortran/78619
    * check.c (same_type_check): Introduce a new argument 'assoc'
    with default value false. If this is true, use the symbol type
    spec of BT_PROCEDURE expressions.
    (gfc_check_associated): Set 'assoc' true in the call to
    'same_type_check'.

2017-11-08  Paul Thomas  <pault@gcc.gnu.org>

    PR fortran/78619
    * gfortran.dg/pr78619.f90: New test.

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