[Bug tree-optimization/69483] [6 Regression] gcc ICE on x86_64-linux-gnu with "expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69483

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Jan 26 15:51:51 2016
New Revision: 232833

URL: https://gcc.gnu.org/viewcvs?rev=232833&root=gcc&view=rev
Log:
        PR tree-optimization/69483
        * gimple-fold.c (canonicalize_constructor_val): Return NULL
        if base has error_mark_node type.

        * c-parser.c (c_parser_translation_unit): Use FOR_EACH_VEC_ELT.

        * gcc.dg/pr69483.c: New test.
        * g++.dg/opt/pr69483.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/opt/pr69483.C
    trunk/gcc/testsuite/gcc.dg/pr69483.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-parser.c
    trunk/gcc/gimple-fold.c
    trunk/gcc/testsuite/ChangeLog