From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/consts/miri_unleashed/ptr_arith.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 tests/ui/consts/miri_unleashed/ptr_arith.rs (limited to 'tests/ui/consts/miri_unleashed/ptr_arith.rs') diff --git a/tests/ui/consts/miri_unleashed/ptr_arith.rs b/tests/ui/consts/miri_unleashed/ptr_arith.rs new file mode 100644 index 000000000..4d12960b8 --- /dev/null +++ b/tests/ui/consts/miri_unleashed/ptr_arith.rs @@ -0,0 +1,24 @@ +// compile-flags: -Zunleash-the-miri-inside-of-you +#![feature(core_intrinsics)] + +// During CTFE, we prevent pointer-to-int casts. +// Pointer comparisons are prevented in the trait system. + +static PTR_INT_CAST: () = { + let x = &0 as *const _ as usize; + //~^ ERROR could not evaluate static initializer + //~| exposing pointers + let _v = x == x; +}; + +static PTR_INT_TRANSMUTE: () = unsafe { + let x: usize = std::mem::transmute(&0); + let _v = x + 0; + //~^ ERROR could not evaluate static initializer + //~| unable to turn pointer into raw bytes +}; + +// I'd love to test pointer comparison, but that is not possible since +// their `PartialEq` impl is non-`const`. + +fn main() {} -- cgit v1.2.3