https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88931
--- Comment #5 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> --- Author: hjl Date: Wed Jan 23 21:41:59 2019 New Revision: 268216 URL: https://gcc.gnu.org/viewcvs?rev=268216&root=gcc&view=rev Log: libgcc2.c: Correct DI/TI -> SF/DF conversions FSTYPE FUNC (DWtype u) in libgcc2.c, which converts DI/TI to SF/DF, has /* No leading bits means u == minimum. */ if (count == 0) return -(Wtype_MAXp1_F * (Wtype_MAXp1_F / 2)); in the third case (where actually count == 0 only means the high part is minimum). It should be: /* No leading bits means u == minimum. */ if (count == 0) return Wtype_MAXp1_F * (FSTYPE) (hi | ((UWtype) u != 0)); instead. gcc/testsuite/ 2019-01-23 H.J. Lu <hongjiu...@intel.com> PR libgcc/88931 * gcc.dg/torture/fp-int-convert-timode-1.c: New test. * gcc.dg/torture/fp-int-convert-timode-2.c: Likewise. * gcc.dg/torture/fp-int-convert-timode-3.c: Likewise. * gcc.dg/torture/fp-int-convert-timode-4.c: Likewise. libgcc/ 2019-01-23 Joseph Myers <jos...@codesourcery.com> PR libgcc/88931 * libgcc2.c (FSTYPE FUNC (DWtype u)): Correct no leading bits case. Added: trunk/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode-1.c trunk/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode-2.c trunk/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode-3.c trunk/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode-4.c Modified: trunk/gcc/testsuite/ChangeLog trunk/libgcc/ChangeLog trunk/libgcc/libgcc2.c