From: Jonathan Wakely <jwakely@redhat.com>
To: Jason Merrill <jason@redhat.com>
Cc: Jakub Jelinek <jakub@redhat.com>, gcc Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] c++: Support &typeid(x) == &typeid(y) and typeid(x) == typeid(y) in constant evaluation [PR103600]
Date: Wed, 8 Dec 2021 13:56:28 +0000 [thread overview]
Message-ID: <CACb0b4m9ySZh=vbK+pjH1btYSL+Kwy_dyna7y+70He7-pTV=fA@mail.gmail.com> (raw)
In-Reply-To: <c63f0d3a-38c0-ccf1-48a6-523498d93201@redhat.com>
On Wed, 8 Dec 2021 at 13:53, Jason Merrill wrote:
> During constant evaluation, the operator== could compare the type_info
> address instead of the __name address, reducing this to the previous
> problem.
That makes sense to me. We might still want the libstdc++ changes in
case other compilers choose to do this differently. I'll get in touch
with some Clang and EDG people about that.
next prev parent reply other threads:[~2021-12-08 13:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 10:35 Jakub Jelinek
2021-12-08 13:53 ` Jason Merrill
2021-12-08 13:56 ` Jonathan Wakely [this message]
2021-12-09 20:15 ` [PATCH] c++, symtab: Support &typeid(x) == &typeid(y) " Jakub Jelinek
2021-12-09 20:41 ` Jan Hubicka
2021-12-09 23:09 ` Jason Merrill
2021-12-10 10:41 ` [PATCH] symtab: Fold &a == &b to 0 if folding_initializer [PR94716] Jakub Jelinek
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