[Bug c++/88752] [8 Regression] ICE in enclosing_instantiation_of, at cp/pt.c:13328

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88752

--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Fri Feb  8 14:49:58 2019
New Revision: 268701

URL: https://gcc.gnu.org/viewcvs?rev=268701&root=gcc&view=rev
Log:
        PR c++/88752 - ICE with lambda and constexpr if.

        * cp-tree.h (LAMBDA_EXPR_INSTANTIATED): New.
        * pt.c (tsubst_lambda_expr): Set it.
        (instantiated_lambda_fn_p): Check it.
        (enclosing_instantiation_of): Use it.

Added:
    branches/gcc-8-branch/gcc/testsuite/g++.dg/cpp1z/constexpr-if26.C
Modified:
    branches/gcc-8-branch/gcc/cp/ChangeLog
    branches/gcc-8-branch/gcc/cp/cp-tree.h
    branches/gcc-8-branch/gcc/cp/pt.c