[Bug tree-optimization/69162] [6 Regression] ICE in create_tmp_var, at gimple-expr.c:468

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69162

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jan  8 10:14:29 2016
New Revision: 232156

URL: https://gcc.gnu.org/viewcvs?rev=232156&root=gcc&view=rev
Log:
        PR tree-optimization/69162
        * gimplify.c (gimplify_va_arg_expr): Encode original type of
        valist argument in another argument.
        (gimplify_modify_expr): Adjust for the above change.  Cleanup.
        * tree-stdarg.c (expand_ifn_va_arg_1): Use new 3rd argument
        to determine the va_list type, build a MEM_REF instead of
        build_fold_indirect_ref.

        * gcc.dg/pr69162.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr69162.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-stdarg.c