[Bug tree-optimization/79908] ICE in gimplify_expr (gimplify.c:12155) gimplification failed

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79908

--- Comment #5 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Tue Mar 21 13:57:20 2017
New Revision: 246319

URL: https://gcc.gnu.org/viewcvs?rev=246319&root=gcc&view=rev
Log:
[gcc]

2017-03-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Richard Biener  <rguenth@suse.com>

        PR tree-optimization/79908
        * tree-stdarg.c (expand_ifn_va_arg_1): For a VA_ARG whose LHS has
        been cast away, use force_gimple_operand to construct the side
        effects.

[gcc/testsuite]

2017-03-21  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/79908
        * gcc.dg/torture/pr79908.c: New file.


Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr79908.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-stdarg.c