https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125891
Bug ID: 125891
Summary: Switch to `-mabi=ieeelongdouble` by default for
PowerPC64LE
Product: gcc
Version: 17.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: tg at trevorgross dot com
Target Milestone: ---
The major distros have migrated relevant PowerPC targets to IEEE128 `long
double`:
* Fedora: https://fedoraproject.org/wiki/Changes/PPC64LE_Float128_Transition
* Debian: https://lists.debian.org/debian-powerpc/2025/09/msg00046.html
* Ubuntu: https://bugs.launchpad.net/ubuntu/+bug/2132257
* Gentoo: https://bugs.gentoo.org/882815
* musl-based distros and the BSDs use binary64 as `long double` so are not
relevant
GCC's default appears to still be ibm128, __LONG_DOUBLE_IBM128__ is defined.
For 17.0, it would be nice to change this default to `ieeelongdouble` to match
what most users will be targeting going forward.
