Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 31 insertions, 0 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
new file mode 100644
index 000000000..c9dc1de51
--- /dev/null
+++ b/src/test/ui/consts/miri_unleashed/const_refers_to_static.rs
@@ -0,0 +1,31 @@
+// build-fail
+// compile-flags: -Zunleash-the-miri-inside-of-you
+#![allow(const_err)]
+
+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)
+};
+
+const READ_INTERIOR_MUT: usize = {
+    static FOO: AtomicUsize = AtomicUsize::new(0);
+    unsafe { *(&FOO as *const _ as *const usize) }
+};
+
+static mut MUTABLE: u32 = 0;
+const READ_MUT: u32 = unsafe { MUTABLE };
+
+fn main() {
+    MUTATE_INTERIOR_MUT;
+    //~^ ERROR: erroneous constant used
+    READ_INTERIOR_MUT;
+    //~^ ERROR: erroneous constant used
+    READ_MUT;
+    //~^ ERROR: erroneous constant used
+}