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pointee_info_at: fix logic for recursing into enums

This commit is contained in:
Ralf Jung 2024-11-07 21:44:28 +01:00
parent 3d1dba830a
commit 35a913b968
4 changed files with 61 additions and 20 deletions

View file

@ -1,5 +1,6 @@
//@ compile-flags: -O -C no-prepopulate-passes
#![crate_type = "lib"]
#![feature(rustc_attrs)]
#![feature(dyn_star)]
#![feature(allocator_api)]
@ -143,13 +144,28 @@ pub fn indirect_struct(_: S) {}
#[no_mangle]
pub fn borrowed_struct(_: &S) {}
// CHECK: @option_borrow(ptr noalias noundef readonly align 4 dereferenceable_or_null(4) %x)
// CHECK: @option_borrow(ptr noalias noundef readonly align 4 dereferenceable_or_null(4) %_x)
#[no_mangle]
pub fn option_borrow(x: Option<&i32>) {}
pub fn option_borrow(_x: Option<&i32>) {}
// CHECK: @option_borrow_mut(ptr noalias noundef align 4 dereferenceable_or_null(4) %x)
// CHECK: @option_borrow_mut(ptr noalias noundef align 4 dereferenceable_or_null(4) %_x)
#[no_mangle]
pub fn option_borrow_mut(x: Option<&mut i32>) {}
pub fn option_borrow_mut(_x: Option<&mut i32>) {}
// Function that must NOT have `dereferenceable` or `align`.
#[rustc_layout_scalar_valid_range_start(16)]
pub struct RestrictedAddress(&'static i16);
enum E {
A(RestrictedAddress),
B,
C,
}
// If the `nonnull` ever goes missing, you might have to tweak the
// scalar_valid_range on `RestrictedAddress` to get it back. You
// might even have to add a `rustc_layout_scalar_valid_range_end`.
// CHECK: @nonnull_and_nondereferenceable(ptr noundef nonnull %_x)
#[no_mangle]
pub fn nonnull_and_nondereferenceable(_x: E) {}
// CHECK: @raw_struct(ptr noundef %_1)
#[no_mangle]