diff options
| -rw-r--r-- | src/intrinsics.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/intrinsics.rs b/src/intrinsics.rs index 7da7e738f52..8fee0fa457d 100644 --- a/src/intrinsics.rs +++ b/src/intrinsics.rs @@ -810,7 +810,12 @@ pub fn codegen_intrinsic_call<'a, 'tcx: 'a>( atomic_binop_return_old! (fx, band<T>(ptr, src) -> ret); }; _ if intrinsic.starts_with("atomic_nand"), <T> (v ptr, v src) { - atomic_binop_return_old! (fx, band_not<T>(ptr, src) -> ret); + let clif_ty = fx.clif_type(T).unwrap(); + let old = fx.bcx.ins().load(clif_ty, MemFlags::new(), ptr, 0); + let and = fx.bcx.ins().band(old, src); + let new = fx.bcx.ins().bnot(and); + fx.bcx.ins().store(MemFlags::new(), new, ptr, 0); + ret.write_cvalue(fx, CValue::by_val(old, fx.layout_of(T))); }; _ if intrinsic.starts_with("atomic_or"), <T> (v ptr, v src) { atomic_binop_return_old! (fx, bor<T>(ptr, src) -> ret); |