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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:11:38 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:13:23 +0000 |
commit | 20431706a863f92cb37dc512fef6e48d192aaf2c (patch) | |
tree | 2867f13f5fd5437ba628c67d7f87309ccadcd286 /src/test/ui/consts/miri_unleashed/const_refers_to_static.rs | |
parent | Releasing progress-linux version 1.65.0+dfsg1-2~progress7.99u1. (diff) | |
download | rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.tar.xz rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.zip |
Merging upstream version 1.66.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/consts/miri_unleashed/const_refers_to_static.rs')
-rw-r--r-- | src/test/ui/consts/miri_unleashed/const_refers_to_static.rs | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/src/test/ui/consts/miri_unleashed/const_refers_to_static.rs b/src/test/ui/consts/miri_unleashed/const_refers_to_static.rs index c9dc1de51..7ed5a48d9 100644 --- a/src/test/ui/consts/miri_unleashed/const_refers_to_static.rs +++ b/src/test/ui/consts/miri_unleashed/const_refers_to_static.rs @@ -1,31 +1,33 @@ -// build-fail // compile-flags: -Zunleash-the-miri-inside-of-you -#![allow(const_err)] +// stderr-per-bitwidth use std::sync::atomic::AtomicUsize; use std::sync::atomic::Ordering; -// These fail during CTFE (as they read a static), so they only cause an error -// when *using* the const. - const MUTATE_INTERIOR_MUT: usize = { static FOO: AtomicUsize = AtomicUsize::new(0); - FOO.fetch_add(1, Ordering::Relaxed) + 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) } + unsafe { *(&FOO as *const _ as *const usize) } //~ERROR evaluation of constant value failed }; static mut MUTABLE: u32 = 0; -const READ_MUT: u32 = unsafe { MUTABLE }; +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() { - MUTATE_INTERIOR_MUT; - //~^ ERROR: erroneous constant used - READ_INTERIOR_MUT; - //~^ ERROR: erroneous constant used - READ_MUT; - //~^ ERROR: erroneous constant used -} +fn main() {} |