From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- .../miri_unleashed/const_refers_to_static.rs | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 tests/ui/consts/miri_unleashed/const_refers_to_static.rs (limited to 'tests/ui/consts/miri_unleashed/const_refers_to_static.rs') diff --git a/tests/ui/consts/miri_unleashed/const_refers_to_static.rs b/tests/ui/consts/miri_unleashed/const_refers_to_static.rs new file mode 100644 index 000000000..7ed5a48d9 --- /dev/null +++ b/tests/ui/consts/miri_unleashed/const_refers_to_static.rs @@ -0,0 +1,33 @@ +// compile-flags: -Zunleash-the-miri-inside-of-you +// stderr-per-bitwidth + +use std::sync::atomic::AtomicUsize; +use std::sync::atomic::Ordering; + +const MUTATE_INTERIOR_MUT: usize = { + static FOO: AtomicUsize = AtomicUsize::new(0); + FOO.fetch_add(1, Ordering::Relaxed) //~ERROR evaluation of constant value failed +}; + +const READ_INTERIOR_MUT: usize = { + static FOO: AtomicUsize = AtomicUsize::new(0); + unsafe { *(&FOO as *const _ as *const usize) } //~ERROR evaluation of constant value failed +}; + +static mut MUTABLE: u32 = 0; +const READ_MUT: u32 = unsafe { MUTABLE }; //~ERROR evaluation of constant value failed + +const REF_INTERIOR_MUT: &usize = { //~ ERROR undefined behavior to use this value +//~| encountered a reference pointing to a static variable + static FOO: AtomicUsize = AtomicUsize::new(0); + unsafe { &*(&FOO as *const _ as *const usize) } +}; + +// ok some day perhaps +const READ_IMMUT: &usize = { //~ ERROR it is undefined behavior to use this value +//~| encountered a reference pointing to a static variable + static FOO: usize = 0; + &FOO +}; + +fn main() {} -- cgit v1.2.3