update comp

Author: tgross35

compiler/rustc_const_eval/src/interpret/operator.rs

@@ -435,8 +435,10 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
                 let val = val.to_scalar();
                 // No NaN adjustment here, `-` is a bitwise operation!
                 let res = match (un_op, fty) {
+                    (Neg, FloatTy::F16) => Scalar::from_f16(-val.to_f16()?),
                     (Neg, FloatTy::F32) => Scalar::from_f32(-val.to_f32()?),
                     (Neg, FloatTy::F64) => Scalar::from_f64(-val.to_f64()?),
+                    (Neg, FloatTy::F128) => Scalar::from_f128(-val.to_f128()?),
                     _ => span_bug!(self.cur_span(), "Invalid float op {:?}", un_op),
                 };
                 Ok(ImmTy::from_scalar(res, layout))