https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95351
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Andrew Pinski <pins...@gcc.gnu.org>: https://gcc.gnu.org/g:31ce2e993d09dcad1ce139a2848a28de5931056d commit r14-9422-g31ce2e993d09dcad1ce139a2848a28de5931056d Author: Andrew Pinski <quic_apin...@quicinc.com> Date: Sun Mar 10 22:17:09 2024 +0000 Fold: Fix up merge_truthop_with_opposite_arm for NaNs [PR95351] The problem here is that merge_truthop_with_opposite_arm would use the type of the result of the comparison rather than the operands of the comparison to figure out if we are honoring NaNs. This fixes that oversight and now we get the correct results in this case. Committed as obvious after a bootstrap/test on x86_64-linux-gnu. PR middle-end/95351 gcc/ChangeLog: * fold-const.cc (merge_truthop_with_opposite_arm): Use the type of the operands of the comparison and not the type of the comparison. gcc/testsuite/ChangeLog: * gcc.dg/float_opposite_arm-1.c: New test. Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>