bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Fix handling of adjustment casts.

Browse source
This commit is contained in:
Camille GILLOT 2024-02-13 17:19:30 +00:00
parent 7ec9601a0b
commit a97e4afb67
1 changed files with 9 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

14
compiler/rustc_mir_transform/src/gvn.rs
View file

@ -561,9 +561,14 @@ impl<'body, 'tcx> VnState<'body, 'tcx> {
.ok()?;
dest.into()
}
CastKind::FnPtrToPtr
| CastKind::PtrToPtr
| CastKind::PointerCoercion(
CastKind::FnPtrToPtr | CastKind::PtrToPtr => {
let src = self.evaluated[value].as_ref()?;
let src = self.ecx.read_immediate(src).ok()?;
let to = self.ecx.layout_of(to).ok()?;
let ret = self.ecx.ptr_to_ptr(&src, to).ok()?;
ret.into()
}
CastKind::PointerCoercion(
ty::adjustment::PointerCoercion::MutToConstPointer
| ty::adjustment::PointerCoercion::ArrayToPointer
| ty::adjustment::PointerCoercion::UnsafeFnPointer,
@ -571,8 +576,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> {
let src = self.evaluated[value].as_ref()?;
let src = self.ecx.read_immediate(src).ok()?;
let to = self.ecx.layout_of(to).ok()?;
let ret = self.ecx.ptr_to_ptr(&src, to).ok()?;
ret.into()
ImmTy::from_immediate(*src, to).into()
}
_ => return None,
},