[Bug middle-end/83415] [8 Regression] ICE during gimplification of assignment to read-only vector

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83415

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Dec 14 11:13:34 2017
New Revision: 255629

URL: https://gcc.gnu.org/viewcvs?rev=255629&root=gcc&view=rev
Log:
2017-12-14  Richard Biener  <rguenther@suse.de>

        PR c/83415
        c/
        * c-fold.c (c_fully_fold_internal): Treat VIEW_CONVERT_EXPR
        like REALPART_EXPR for the behavior of whether its operand
        is an lvalue.

        * gcc.dg/pr83415.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr83415.c
Modified:
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-fold.c
    trunk/gcc/testsuite/ChangeLog