34 lines
1.3 KiB
Rust
34 lines
1.3 KiB
Rust
//@ compile-flags: -Zunleash-the-miri-inside-of-you
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//@ normalize-stderr-test: "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)"
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//@ normalize-stderr-test: "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP"
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use std::sync::atomic::AtomicUsize;
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use std::sync::atomic::Ordering;
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const MUTATE_INTERIOR_MUT: usize = {
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static FOO: AtomicUsize = AtomicUsize::new(0);
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FOO.fetch_add(1, Ordering::Relaxed) //~ERROR evaluation of constant value failed
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};
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const READ_INTERIOR_MUT: usize = {
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static FOO: AtomicUsize = AtomicUsize::new(0);
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unsafe { *(&FOO as *const _ as *const usize) } //~ERROR evaluation of constant value failed
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};
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static mut MUTABLE: u32 = 0;
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const READ_MUT: u32 = unsafe { MUTABLE }; //~ERROR evaluation of constant value failed
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// Evaluating this does not read anything mutable, but validation does, so this should error.
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const REF_INTERIOR_MUT: &usize = { //~ ERROR undefined behavior
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//~| encountered reference to mutable memory
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static FOO: AtomicUsize = AtomicUsize::new(0);
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unsafe { &*(&FOO as *const _ as *const usize) }
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};
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// Not actually reading from anything mutable, so these are fine.
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static MY_STATIC: u8 = 4;
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const REF_IMMUT: &u8 = &MY_STATIC;
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const READ_IMMUT: u8 = *REF_IMMUT;
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fn main() {}
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