https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100350
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> --- The master branch has been updated by Michael Meissner <meiss...@gcc.gnu.org>: https://gcc.gnu.org/g:d9398dd2902a0142fa3b493cf61a340f1f5ab46f commit r12-325-gd9398dd2902a0142fa3b493cf61a340f1f5ab46f Author: Michael Meissner <meiss...@linux.ibm.com> Date: Fri Apr 30 12:32:08 2021 -0400 Define target hook to emit KFmode constants for libgcc. This patch defines a target hook so that the KFmode constants (__LIBGCC_KF_MAX__, __LIBGCC_KF_MIN__, and __LIBGCC_KF_EPSILON__) needed to build _divkc3.c in libgcc are defined. The need for these constants were added in the April 28th changes to libgcc that added complex division optimizations. We only define the KFmode constants if IEEE 128-bit floating point is supported, but long double does not use the IEEE 128-bit format. If long double uses the IEEE 128-bit format, it will use TFmode and not KFmode. gcc/ 2021-04-30 Michael Meissner <meiss...@linux.ibm.com> PR bootstrap/100327 * config/rs6000/rs6000.c (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define. (rs6000_libgcc_floating_mode_supported_p): New target hook.
