On 11/4/20 5:35 PM, Joseph Myers wrote: > Add built-in functions __builtin_nansd32, __builtin_nansd64 and > __builtin_nansd128 to return signaling NaNs of decimal floating-point > types, analogous to the functions already present for binary > floating-point types. > > This patch, independent of > <https://gcc.gnu.org/pipermail/gcc-patches/2020-October/557136.html> > (pending review), is in preparation for adding the <float.h> macros > for such signaling NaNs that are in C2x, analogous to the macros for > other types that are in that patch. > > Bootstrapped with no regressions for x86_64-pc-linux-gnu. Also ran > the new tests for powerpc64le-linux-gnu to confirm they do work in the > case (hardware DFP) where floating-point exceptions are supported for > DFP. OK to commit? > > gcc/ > 2020-11-05 Joseph Myers <jos...@codesourcery.com> > > * builtins.def (BUILT_IN_NANSD32, BUILT_IN_NANSD64) > (BUILT_IN_NANSD128): New built-in functions. > * fold-const-call.c (fold_const_call): Handle the new built-in > functions. > * doc/extend.texi (__builtin_nansd32, __builtin_nansd64) > (__builtin_nansd128): Document. > * doc/sourcebuild.texi (Effective-Target Keywords): Document > fenv_exceptions_dfp. > > gcc/testsuite/ > 2020-11-05 Joseph Myers <jos...@codesourcery.com> > > * lib/target-supports.exp > (check_effective_target_fenv_exceptions_dfp): New. > * gcc.dg/dfp/builtin-snan-1.c, gcc.dg/dfp/builtin-snan-2.c: New > tests.
OK jeff
