[Bug tree-optimization/70144] [4.9/5/6 Regression] g++ ICE at -O1 and above on valid code on x86_64-linux-gnu in "copy_reference_ops_from_ref"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70144

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Mar 17 15:58:22 2016
New Revision: 234297

URL: https://gcc.gnu.org/viewcvs?rev=234297&root=gcc&view=rev
Log:
        PR c++/70144
        * cp-tree.h (magic_varargs_p): Return int instead of bool.
        * call.c (magic_varargs_p): Return int instead of bool, return 2 for
        Cilk+ reductions, otherwise 1 for magic varargs and 0 for normal
        varargs.
        (build_over_call): If magic_varargs_p == 2, call reject_gcc_builtin,
        if magic_varargs_p == 1, call decay_conversion
        instead of mark_type_use.  Don't store error_mark_node arguments to
        argarray, instead return error_mark_node.

        * c-c++-common/pr70144-1.c: New test.
        * c-c++-common/pr70144-2.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/pr70144-1.c
    trunk/gcc/testsuite/c-c++-common/pr70144-2.c
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/testsuite/ChangeLog