diff options
| author | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-02-25 11:42:20 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-02-25 11:42:20 +0100 |
| commit | 5f910fa99cae8b835a2deba6128a02bf7409ef74 (patch) | |
| tree | ed4c3fe54b2484fed3726c2e392c1626692d812e /src | |
| parent | 554aed6c7d449b75ea0a460e811c4f3069f60dd4 (diff) | |
| parent | 46f1cc69db895704100197d43ce853bb29674f11 (diff) | |
| download | rust-5f910fa99cae8b835a2deba6128a02bf7409ef74.tar.gz rust-5f910fa99cae8b835a2deba6128a02bf7409ef74.zip | |
Rollup merge of #58687 - kenta7777:reduce-miri-code-repetition, r=oli-obk
Reduce Miri Code Repetition like `(n << amt) >> amt` This Pull Request fixes a part of [#49937](https://github.com/rust-lang/rust/issues/49937).
Diffstat (limited to 'src')
| -rw-r--r-- | src/librustc_mir/hair/constant.rs | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/librustc_mir/hair/constant.rs b/src/librustc_mir/hair/constant.rs index 21c471d49ee..caadc6055b5 100644 --- a/src/librustc_mir/hair/constant.rs +++ b/src/librustc_mir/hair/constant.rs @@ -21,8 +21,7 @@ crate fn lit_to_const<'a, 'gcx, 'tcx>( let param_ty = ParamEnv::reveal_all().and(tcx.lift_to_global(&ty).unwrap()); let width = tcx.layout_of(param_ty).map_err(|_| LitToConstError::Reported)?.size; trace!("trunc {} with size {} and shift {}", n, width.bits(), 128 - width.bits()); - let shift = 128 - width.bits(); - let result = (n << shift) >> shift; + let result = truncate(n, width); trace!("trunc result: {}", result); Ok(ConstValue::Scalar(Scalar::Bits { bits: result, |