[Patch, fortran] PR92959 - ICE in gfc_conv_associated, at fortran/trans-intrinsic.c:8634

[Paul Richard Thomas]

This is a another case of the gotcha's that come from trying to use
ts.u.cl->backend_decl directly, where deferred length and even, in
this case fixed length characters are concerned. The fix is to make
use of the string length obtained from evaluation of the expression.

Regtested on FC31/x86_64 - OK for trunk?

Paul

2020-02-29  Paul Thomas  <pault@gcc.gnu.org>

    PR fortran/92959
    * trans-intrinsic.c (gfc_conv_associated): Eliminate
    'nonzero_charlen' and move the chunk to evaluate zero character
    length until after the argument evaluation so that the string
    length can be used.

2020-02-29  Paul Thomas  <pault@gcc.gnu.org>

    PR fortran/92959
    * gfortran.dg/associated_8.f90 : New test.
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