OpenE2K/rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

reduced some code repetitions of bit operation

Browse Source
This commit is contained in:
kenta7777 2019-03-11 22:32:27 +09:00
parent 749e9d460a
commit 4c9f7a08e5
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/librustc_mir/build/matches/simplify.rs
View File

@ -19,6 +19,7 @@ use rustc::ty;
use rustc::ty::layout::{Integer, IntegerExt, Size};
use syntax::attr::{SignedInt, UnsignedInt};
use rustc::hir::RangeEnd;
use rustc::mir::interpret::mask;
use std::mem;
@ -115,14 +116,14 @@ impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
ty::Int(ity) => {
// FIXME(49937): refactor these bit manipulations into interpret.
let size = Integer::from_attr(&tcx, SignedInt(ity)).size();
let max = !0u128 >> (128 - size.bits());
let max = mask(size);
let bias = 1u128 << (size.bits() - 1);
(Some((0, max, size)), bias)
}
ty::Uint(uty) => {
// FIXME(49937): refactor these bit manipulations into interpret.
let size = Integer::from_attr(&tcx, UnsignedInt(uty)).size();
let max = !0u128 >> (128 - size.bits());
let max = mask(size);
(Some((0, max, size)), 0)
}
_ => (None, 0),