On Wed, Dec 13, 2017 at 04:45:33PM +0000, Sudi Das wrote: > On 13/12/17 16:42, Sudakshina Das wrote: > > Hi > > > > This patch is a follow up to the existing discussions on > > https://gcc.gnu.org/ml/gcc-patches/2017-07/msg01904.html > > Bin had earlier submitted a patch to fix the ICE that occurs because of > > the missing LTGT in aarch64-simd.md. > > That discussion opened up a new bug report PR81647 for an inconsistent > > behavior. > > > > As discussed earlier on the gcc-patches discussion and on the bug > > report, PR81647 was occurring because of how UNEQ was handled in > > aarch64-simd.md rather than LTGT. Since __builtin_islessgreater is > > guaranteed to not give an FP exception but LTGT might, > > __builtin_islessgreater gets converted to ~UNEQ very early on in > > fold_builtin_unordered_cmp. Thus I will post a separate patch for > > correcting how UNEQ and other unordered comparisons are handled in > > aarch64-simd.md. > > > > This patch is only adding the missing LTGT to plug the ICE. > > > > Testing done: Checked for regressions on bootstrapped > > aarch64-none-linux-gnu and added a new compile time test case that gives > > out LTGT to make sure it doesn't ICE. > > > > Is this ok for trunk?
OK. Thanks, James
