[Bug c/71602] [6/7 regression] ICE on __builtin_va_arg in build_va_arg, at c-family/c-common.c:5810

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71602

--- Comment #15 from Tom de Vries <vries at gcc dot gnu.org> ---
Posted updated patch: https://gcc.gnu.org/ml/gcc-patches/2016-08/msg01691.html