[Bug analyzer/93405] Passing constant arguments to subroutines in Fortran ... and the analyzer.

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93405

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by David Malcolm <dmalc...@gcc.gnu.org>:

https://gcc.gnu.org/g:41a9e940c7014f117738a9a59b31833047a1083d

commit r10-6564-g41a9e940c7014f117738a9a59b31833047a1083d
Author: David Malcolm <dmalc...@redhat.com>
Date:   Wed Feb 5 16:48:53 2020 -0500

    analyzer: fix ICE with fortran constant arguments (PR 93405)

    PR analyzer/93405 reports an ICE with -fanalyzer when passing
    a constant "by reference" in gfortran.

    The issue is that the constant is passed as an ADDR_EXPR
    of a CONST_DECL, and region_model::get_lvalue_1 doesn't
    know how to handle CONST_DECL.

    This patch implements it for CONST_DECL by providing
    a placeholder region, holding the CONST_DECL's value,
    fixing the ICE.

    gcc/analyzer/ChangeLog:
        PR analyzer/93405
        * region-model.cc (region_model::get_lvalue_1): Implement
        CONST_DECL.

    gcc/testsuite/ChangeLog:
        PR analyzer/93405
        * gfortran.dg/analyzer/pr93405.f90: New test.