},
ty::TyInt(_) => {
let layout = tcx.layout_of(ty).ok()?;
- let a = interpret::sign_extend(a, layout);
- let b = interpret::sign_extend(b, layout);
+ assert!(layout.abi.is_signed());
+ let a = interpret::sign_extend(a, layout.size);
+ let b = interpret::sign_extend(b, layout.size);
Some((a as i128).cmp(&(b as i128)))
},
_ => Some(a.cmp(&b)),
}
pub fn sign_extend(&self, value: u128, ty: TyLayout<'_>) -> u128 {
- super::sign_extend(value, ty)
+ assert!(ty.abi.is_signed());
+ super::sign_extend(value, ty.size)
}
pub fn truncate(&self, value: u128, ty: TyLayout<'_>) -> u128 {
- super::truncate(value, ty)
+ super::truncate(value, ty.size)
}
fn dump_field_name(&self, s: &mut String, ty: Ty<'tcx>, i: usize, variant: usize) -> ::std::fmt::Result {
}
}
-pub fn sign_extend(value: u128, layout: TyLayout<'_>) -> u128 {
- let size = layout.size.bits();
- assert!(layout.abi.is_signed());
+pub fn sign_extend(value: u128, size: Size) -> u128 {
+ let size = size.bits();
// sign extend
let shift = 128 - size;
// shift the unsigned value to the left
(((value << shift) as i128) >> shift) as u128
}
-pub fn truncate(value: u128, layout: TyLayout<'_>) -> u128 {
- let size = layout.size.bits();
+pub fn truncate(value: u128, size: Size) -> u128 {
+ let size = size.bits();
let shift = 128 - size;
// truncate (shift left to drop out leftover values, shift right to fill with zeroes)
(value << shift) >> shift