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-rw-r--r--compiler/rustc_data_structures/src/sync.rs11
1 files changed, 8 insertions, 3 deletions
diff --git a/compiler/rustc_data_structures/src/sync.rs b/compiler/rustc_data_structures/src/sync.rs
index 6c3197d8e..25a082373 100644
--- a/compiler/rustc_data_structures/src/sync.rs
+++ b/compiler/rustc_data_structures/src/sync.rs
@@ -139,9 +139,14 @@ cfg_if! {
impl Atomic<bool> {
pub fn fetch_or(&self, val: bool, _: Ordering) -> bool {
- let result = self.0.get() | val;
- self.0.set(val);
- result
+ let old = self.0.get();
+ self.0.set(val | old);
+ old
+ }
+ pub fn fetch_and(&self, val: bool, _: Ordering) -> bool {
+ let old = self.0.get();
+ self.0.set(val & old);
+ old
}
}