28 lines
921 B
Rust
28 lines
921 B
Rust
#![feature(core_intrinsics)]
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#![feature(const_heap)]
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#![feature(const_mut_refs)]
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// Strip out raw byte dumps to make comparison platform-independent:
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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] |╾─*A(LLOC)?[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP"
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//@ normalize-stderr-test "HEX_DUMP\s*\n\s*HEX_DUMP" -> "HEX_DUMP"
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use std::intrinsics;
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const _X: &'static u8 = unsafe {
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//~^ error: it is undefined behavior to use this value
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let ptr = intrinsics::const_allocate(4, 4);
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intrinsics::const_deallocate(ptr, 4, 4);
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&*ptr
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};
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const _Y: u8 = unsafe {
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let ptr = intrinsics::const_allocate(4, 4);
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let reference = &*ptr;
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intrinsics::const_deallocate(ptr, 4, 4);
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*reference
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//~^ error: evaluation of constant value failed
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};
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fn main() {}
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