bjoernager/rust
bjoernager/rust
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Use wide pointers consistenly across the compiler

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This commit is contained in:
Urgau 2024-10-03 15:05:23 +02:00
parent f7c8928f03
commit 018ba0528f
41 changed files with 120 additions and 120 deletions
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10
compiler/rustc_codegen_cranelift/src/base.rs
View file

@ -713,17 +713,17 @@ fn codegen_stmt<'tcx>(
let from_ty = operand.layout().ty;
let to_ty = fx.monomorphize(to_ty);
fn is_fat_ptr<'tcx>(fx: &FunctionCx<'_, '_, 'tcx>, ty: Ty<'tcx>) -> bool {
fn is_wide_ptr<'tcx>(fx: &FunctionCx<'_, '_, 'tcx>, ty: Ty<'tcx>) -> bool {
ty.builtin_deref(true)
.is_some_and(|pointee_ty| has_ptr_meta(fx.tcx, pointee_ty))
}
if is_fat_ptr(fx, from_ty) {
if is_fat_ptr(fx, to_ty) {
// fat-ptr -> fat-ptr
if is_wide_ptr(fx, from_ty) {
if is_wide_ptr(fx, to_ty) {
// wide-ptr -> wide-ptr
lval.write_cvalue(fx, operand.cast_pointer_to(dest_layout));
} else {
// fat-ptr -> thin-ptr
// wide-ptr -> thin-ptr
let (ptr, _extra) = operand.load_scalar_pair(fx);
lval.write_cvalue(fx, CValue::by_val(ptr, dest_layout))
}

2
compiler/rustc_codegen_cranelift/src/common.rs
View file

@ -101,7 +101,7 @@ fn clif_pair_type_from_ty<'tcx>(
})
}
/// Is a pointer to this type a fat ptr?
/// Is a pointer to this type a wide ptr?
pub(crate) fn has_ptr_meta<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool {
if ty.is_sized(tcx, ParamEnv::reveal_all()) {
return false;

2
compiler/rustc_codegen_cranelift/src/debuginfo/types.rs
View file

@ -139,7 +139,7 @@ impl DebugContext {
pointer_type_id
} else {
// FIXME implement debuginfo for fat pointers
// FIXME implement debuginfo for wide pointers
self.placeholder_for_type(tcx, type_dbg, ptr_type)
}
}