Sign extend ints in trans_const_value

2019-03-11 20:44:05 +01:00 · 2019-03-11 20:44:05 +01:00 · b0ecbf14a2
commit b0ecbf14a2
parent d9403bf3fd
1 changed files with 1 additions and 1 deletions
--- a/src/constant.rs
+++ b/src/constant.rs
@ -116,7 +116,7 @@ fn trans_const_value<'a, 'tcx: 'a>(
        }
        ty::Int(_) => {
            let bits = const_.val.try_to_bits(layout.size).unwrap();
-            CValue::const_val(fx, ty, bits as i128 as i64)
+            CValue::const_val(fx, ty, rustc::mir::interpret::sign_extend(bits, layout.size) as i128 as i64)
        }
        ty::FnDef(_def_id, _substs) => CValue::ByRef(
            fx.bcx