Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 40 insertions, 0 deletions

diff --git a/tests/ui/consts/ptr_comparisons.stderr b/tests/ui/consts/ptr_comparisons.stderr
new file mode 100644
index 000000000..fea924d12
--- /dev/null
+++ b/tests/ui/consts/ptr_comparisons.stderr
@@ -0,0 +1,40 @@
+error[E0080]: evaluation of constant value failed
+  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
+   |
+   = note: out-of-bounds pointer arithmetic: alloc3 has size $WORD, so pointer to $TWO_WORDS bytes starting at offset 0 is out-of-bounds
+   |
+note: inside `ptr::const_ptr::<impl *const usize>::offset`
+  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
+note: inside `_`
+  --> $DIR/ptr_comparisons.rs:50:34
+   |
+LL | const _: *const usize = unsafe { (FOO as *const usize).offset(2) };
+   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error[E0080]: evaluation of constant value failed
+  --> $DIR/ptr_comparisons.rs:53:33
+   |
+LL |     unsafe { std::ptr::addr_of!((*(FOO as *const usize as *const [u8; 1000]))[999]) };
+   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: alloc3 has size $WORD, so pointer to 1000 bytes starting at offset 0 is out-of-bounds
+
+error[E0080]: evaluation of constant value failed
+  --> $DIR/ptr_comparisons.rs:57:27
+   |
+LL | const _: usize = unsafe { std::mem::transmute::<*const usize, usize>(FOO) + 4 };
+   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes
+   |
+   = help: this code performed an operation that depends on the underlying bytes representing a pointer
+   = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
+
+error[E0080]: evaluation of constant value failed
+  --> $DIR/ptr_comparisons.rs:61:27
+   |
+LL | const _: usize = unsafe { *std::mem::transmute::<&&usize, &usize>(&FOO) + 4 };
+   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes
+   |
+   = help: this code performed an operation that depends on the underlying bytes representing a pointer
+   = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0080`.