Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 36 insertions, 0 deletions

diff --git a/tests/ui/consts/validate_never_arrays.stderr b/tests/ui/consts/validate_never_arrays.stderr
new file mode 100644
index 000000000..12090e483
--- /dev/null
+++ b/tests/ui/consts/validate_never_arrays.stderr
@@ -0,0 +1,36 @@
+error[E0080]: it is undefined behavior to use this value
+  --> $DIR/validate_never_arrays.rs:6:1
+   |
+LL | const _: &[!; 1] = unsafe { &*(1_usize as *const [!; 1]) };
+   | ^^^^^^^^^^^^^^^^ constructing invalid value: encountered a reference pointing to uninhabited type [!; 1]
+   |
+   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
+   = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) {
+               HEX_DUMP
+           }
+
+error[E0080]: it is undefined behavior to use this value
+  --> $DIR/validate_never_arrays.rs:9:1
+   |
+LL | const _: &[!] = unsafe { &*(1_usize as *const [!; 1]) };
+   | ^^^^^^^^^^^^^ constructing invalid value at .<deref>[0]: encountered a value of the never type `!`
+   |
+   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
+   = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) {
+               HEX_DUMP
+           }
+
+error[E0080]: it is undefined behavior to use this value
+  --> $DIR/validate_never_arrays.rs:10:1
+   |
+LL | const _: &[!] = unsafe { &*(1_usize as *const [!; 42]) };
+   | ^^^^^^^^^^^^^ constructing invalid value at .<deref>[0]: encountered a value of the never type `!`
+   |
+   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
+   = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) {
+               HEX_DUMP
+           }
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0080`.