[Bug c++/90825] [9/10 Regression] g++: internal compiler error: Segmentation fault signal terminated program cc1plus

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90825

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Wed Jun 12 22:26:54 2019
New Revision: 272221

URL: https://gcc.gnu.org/viewcvs?rev=272221&root=gcc&view=rev
Log:
        PR c++/90825 - endless recursion when evaluating sizeof.
        PR c++/90832 - endless recursion when evaluating sizeof.
        * constexpr.c (cxx_eval_constant_expression): Don't recurse on the
        result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
        * typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
        is instantiation-dependent.

        * g++.dg/cpp0x/constexpr-sizeof2.C: New test.
        * g++.dg/cpp0x/constexpr-sizeof3.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-sizeof2.C
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-sizeof3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/constexpr.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/testsuite/ChangeLog