[Bug c++/66758] [concepts] ICE compiler deeply confused by simple-seeming concept definition

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66758

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Fri Jul 10 22:11:22 2015
New Revision: 225696

URL: https://gcc.gnu.org/viewcvs?rev=225696&root=gcc&view=rev
Log:
        PR c++/66758
        * gcc/cp/pt.c (tsubst_constraint_variables): Clear
        cp_unevaluated_operand.

Added:
    branches/c++-concepts/gcc/testsuite/g++.dg/concepts/req14.C
Modified:
    branches/c++-concepts/ChangeLog.concepts
    branches/c++-concepts/gcc/cp/constraint.cc