https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88343
--- Comment #17 from Joseph S. Myers <jsm28 at gcc dot gnu.org> --- Created attachment 45328 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45328&action=edit Preprocessed source Replacing s_nextafterf.os built with trunk with that patch reverted, by the same file as built with trunk without the reversion, is sufficient to produce a glibc binary showing the problem. Preprocessed sources attached. Given the --with-float=soft compiler, compile with: -std=gnu11 -fgnu89-inline -g -O2 -fmerge-all-constants -frounding-math -fno-stack-protector -fno-math-errno -mlong-double-128 -fpic s_nextafterf.i.