[Bug c++/54777] [C++11] Comma operator in constexpr environment can cause ICE

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54777

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-10-03 14:27:35 UTC ---
Author: jakub
Date: Wed Oct  3 14:27:30 2012
New Revision: 192037

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192037
Log:
    PR c++/54777
    * semantics.c (cxx_eval_constant_expression) <case COMPOUND_EXPR>: If
    not ignoring the second operand, pass the original second operand
    and not one with stripped nops to cxx_eval_constant_expression.

    * g++.dg/cpp0x/constexpr-ref4.C: New test.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-ref4.C
Modified:
    branches/gcc-4_7-branch/gcc/cp/ChangeLog
    branches/gcc-4_7-branch/gcc/cp/semantics.c
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog