mirror of
https://github.com/rust-lang/rust
synced 2024-10-01 14:25:08 +00:00
6d75f54310
Moves the sanitizer ui tests to the sanitizer directory and removes the sanitizer prefix from tests file names similarly to how the sanitizer codegen tests are organized.
37 lines
964 B
Rust
37 lines
964 B
Rust
//@ needs-sanitizer-support
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//@ needs-sanitizer-memory
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//
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//@ revisions: unoptimized optimized
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//
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//@ [optimized]compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins -O
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//@ [unoptimized]compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins
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//
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//@ run-fail
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//@ error-pattern: MemorySanitizer: use-of-uninitialized-value
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//@ error-pattern: Uninitialized value was created by an allocation
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//@ error-pattern: in the stack frame
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//
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// This test case intentionally limits the usage of the std,
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// since it will be linked with an uninstrumented version of it.
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#![feature(core_intrinsics)]
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#![feature(start)]
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use std::hint::black_box;
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use std::mem::MaybeUninit;
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#[inline(never)]
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#[no_mangle]
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#[allow(invalid_value)]
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fn random() -> char {
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let r = unsafe { MaybeUninit::uninit().assume_init() };
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// Avoid optimizing everything out.
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black_box(r)
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}
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#[start]
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fn main(_: isize, _: *const *const u8) -> isize {
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random();
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0
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}
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