* constexpr.c (cxx_eval_outermost_constant_expr): Tweak.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216809 138bc75d-0d04-0410-961f-82ee72b054a4
longlong.h: Disable alpha umul_ppmm for old g++

Causes "unexpected AST of kind MULT_HIGHPART" error with
bootstrap from gcc 4.8.

        * longlong.h [__alpha] (umul_ppmm): Disable for c++.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216811 138bc75d-0d04-0410-961f-82ee72b054a4