[Bug tree-optimization/64950] postpone expanding va_arg till pass_stdarg

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64950

--- Comment #6 from vries at gcc dot gnu.org ---
https://gcc.gnu.org/ml/gcc-cvs/2015-04/msg00372.html :

Author: vries
Date: Fri Apr 17 09:27:08 2015
New Revision: 222174

URL: https://gcc.gnu.org/viewcvs?rev=222174&root=gcc&view=rev
Log:
Set PROP_gimple_lva for functions without IFN_VA_ARG

2015-04-17  Tom de Vries  <tom@codesourcery.com>

    * gimplify.c (gimplify_function_tree): Tentatively set PROP_gimple_lva
    in cfun->curr_properties.
    (gimplify_va_arg_expr): Clear PROP_gimple_lva in cfun->curr_properties
    if we generate an IFN_VA_ARG.
    * tree-inline.c (expand_call_inline): Reset PROP_gimple_lva in dest
    function if PROP_gimple_lva is not set in src function.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/tree-inline.c