From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../lint/lint-invalid-atomic-ordering-exchange.rs | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/test/ui/lint/lint-invalid-atomic-ordering-exchange.rs (limited to 'src/test/ui/lint/lint-invalid-atomic-ordering-exchange.rs') diff --git a/src/test/ui/lint/lint-invalid-atomic-ordering-exchange.rs b/src/test/ui/lint/lint-invalid-atomic-ordering-exchange.rs new file mode 100644 index 000000000..488d268ee --- /dev/null +++ b/src/test/ui/lint/lint-invalid-atomic-ordering-exchange.rs @@ -0,0 +1,48 @@ +// only-x86_64 +use std::sync::atomic::{AtomicUsize, Ordering}; + +fn main() { + // `compare_exchange` (not weak) testing + let x = AtomicUsize::new(0); + + // Allowed ordering combos + let _ = x.compare_exchange(0, 0, Ordering::Relaxed, Ordering::Relaxed); + let _ = x.compare_exchange(0, 0, Ordering::Relaxed, Ordering::Acquire); + let _ = x.compare_exchange(0, 0, Ordering::Relaxed, Ordering::SeqCst); + let _ = x.compare_exchange(0, 0, Ordering::Acquire, Ordering::Relaxed); + let _ = x.compare_exchange(0, 0, Ordering::Acquire, Ordering::Acquire); + let _ = x.compare_exchange(0, 0, Ordering::Acquire, Ordering::SeqCst); + let _ = x.compare_exchange(0, 0, Ordering::Release, Ordering::Relaxed); + let _ = x.compare_exchange(0, 0, Ordering::Release, Ordering::Acquire); + let _ = x.compare_exchange(0, 0, Ordering::Release, Ordering::SeqCst); + let _ = x.compare_exchange(0, 0, Ordering::AcqRel, Ordering::Relaxed); + let _ = x.compare_exchange(0, 0, Ordering::AcqRel, Ordering::Acquire); + let _ = x.compare_exchange(0, 0, Ordering::AcqRel, Ordering::SeqCst); + let _ = x.compare_exchange(0, 0, Ordering::SeqCst, Ordering::Relaxed); + let _ = x.compare_exchange(0, 0, Ordering::SeqCst, Ordering::Acquire); + let _ = x.compare_exchange(0, 0, Ordering::SeqCst, Ordering::SeqCst); + + // AcqRel is always forbidden as a failure ordering + let _ = x.compare_exchange(0, 0, Ordering::Relaxed, Ordering::AcqRel); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::Acquire, Ordering::AcqRel); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::Release, Ordering::AcqRel); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::AcqRel, Ordering::AcqRel); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::SeqCst, Ordering::AcqRel); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + + // Release is always forbidden as a failure ordering + let _ = x.compare_exchange(0, 0, Ordering::Relaxed, Ordering::Release); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::Acquire, Ordering::Release); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::Release, Ordering::Release); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::AcqRel, Ordering::Release); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` + let _ = x.compare_exchange(0, 0, Ordering::SeqCst, Ordering::Release); + //~^ ERROR `compare_exchange`'s failure ordering may not be `Release` or `AcqRel` +} -- cgit v1.2.3