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Re: __float128 typeinfo

From: Jason Merrill <jason at redhat dot com>
To: Marc Glisse <marc dot glisse at inria dot fr>
Cc: gcc-patches at gcc dot gnu dot org, libstdc++ at gcc dot gnu dot org, meissner at linux dot vnet dot ibm dot com, ramana dot gcc at googlemail dot com
Date: Fri, 06 Jun 2014 12:38:01 -0400
Subject: Re: __float128 typeinfo
Authentication-results: sourceware.org; auth=none
References: <alpine dot DEB dot 2 dot 02 dot 1406061049520 dot 8194 at stedding dot saclay dot inria dot fr> <5391E09A dot 7010607 at redhat dot com> <alpine dot DEB dot 2 dot 10 dot 1406061740590 dot 22367 at stedding dot saclay dot inria dot fr>

On 06/06/2014 11:58 AM, Marc Glisse wrote:

On Fri, 6 Jun 2014, Jason Merrill wrote:

What's your rationale for keeping this in a separate version block
rather than in 1.3.9 (like __int128)?


Powerpc already has those symbols in CXXABI_LDBL_1.3 (for a type that
isn't __float128 but (de)mangles that way). That doesn't prevent from
using CXXABI_1.3.9 in the x86/ia64-specific file though, so I can do
that if you prefer. If a new target implements __float128 in 4.11 or
4.12, they will have to refine the configure test and provide a
different .ver file to avoid adding symbols to an old version.

Fair enough. Let's stick with your approach then, but drop the 1.3.9from the name.

Why is __float128 handled as a target type, anyway? I'd think it oughtto be a standard type that just isn't supported on all targets, like__int128.


Jason

Follow-Ups:
- Re: __float128 typeinfo
  - From: Joseph S. Myers
- Re: __float128 typeinfo
  - From: Marc Glisse

References:
- __float128 typeinfo
  - From: Marc Glisse
- Re: __float128 typeinfo
  - From: Jason Merrill
- Re: __float128 typeinfo
  - From: Marc Glisse

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