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Re: [C++ Patch] PR 51225

From: Jason Merrill <jason at redhat dot com>
To: Paolo Carlini <paolo dot carlini at oracle dot com>
Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Date: Fri, 13 Jan 2012 21:15:00 -0500
Subject: Re: [C++ Patch] PR 51225
References: <4F10750E.2070606@oracle.com> <4F108D78.8030001@redhat.com> <4F109AB6.10204@oracle.com>

On 01/13/2012 03:57 PM, Paolo Carlini wrote:

Anyway, the reason we are not tsubst-ing such trees - eg, a CAST_EXPR on
a single element TREE_LIST as argument, with error_mark_node as value -
is that potential_constant_expression is false in
fold_non_dependent_expr_sfinae, thus tsubst_copy_and_build is not called
at all.

We also shouldn't call cxx_eval_constant_expression if potential_constant_expression is false.

Jason

Follow-Ups:
- Re: [C++ Patch] PR 51225
  - From: Paolo Carlini

References:
- [C++ Patch] PR 51225
  - From: Paolo Carlini
- Re: [C++ Patch] PR 51225
  - From: Jason Merrill
- Re: [C++ Patch] PR 51225
  - From: Paolo Carlini

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