[Bug c/80122] __builtin_va_arg_pack() and __builtin_va_arg_pack_len() does not work correctly

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80122

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 21 11:42:22 2017
New Revision: 246313

URL: https://gcc.gnu.org/viewcvs?rev=246313&root=gcc&view=rev
Log:
2017-03-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/80122
        * tree-inline.c (copy_bb): Do not expans va-arg packs or
        va_arg_pack_len when the inlined call stmt requires pack
        expansion itself.
        * tree-inline.h (struct copy_body_data): Make call_stmt a gcall *.

        * gcc.dg/torture/pr80122.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr80122.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-inline.c
    trunk/gcc/tree-inline.h