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Re: __float128 typeinfo
- From: Marc Glisse <marc dot glisse at inria dot fr>
- To: Jason Merrill <jason at redhat dot com>
- 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, 6 Jun 2014 17:58:03 +0200 (CEST)
- 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>
On Fri, 6 Jun 2014, Jason Merrill wrote:
On 06/06/2014 10:16 AM, Marc Glisse wrote:
* config/abi/pre/float128.ver: New file.
+CXXABI_FLOAT128_1.3.9 {
What's your rationale for keeping this in a separate version block rather
than in 1.3.9 (like __int128)?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43622#c6
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. Or I could try to share the
CXXABI_LDBL_1.3 name although it doesn't correspond to long double in this
case.
I have no preference, I'll go with whatever people like.
--
Marc Glisse