bjoernager/rust
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Use 'relaxed' memory ordering for simple atomic counters in dep-graph.

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This commit is contained in:
Michael Woerister 2019-12-13 14:46:10 +01:00
parent a62c040929
commit 996511a456
1 changed files with 4 additions and 4 deletions
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8
src/librustc/dep_graph/graph.rs
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@ -497,8 +497,8 @@ impl DepGraph {
let current_dep_graph = &self.data.as_ref().unwrap().current; let current_dep_graph = &self.data.as_ref().unwrap().current;
Some(( Some((
current_dep_graph.total_read_count.load(SeqCst), current_dep_graph.total_read_count.load(Relaxed),
current_dep_graph.total_duplicate_read_count.load(SeqCst), current_dep_graph.total_duplicate_read_count.load(Relaxed),
)) ))
} else { } else {
None None
@ -1111,7 +1111,7 @@ impl DepGraphData {
if let Some(task_deps) = icx.task_deps { if let Some(task_deps) = icx.task_deps {
let mut task_deps = task_deps.lock(); let mut task_deps = task_deps.lock();
if cfg!(debug_assertions) { if cfg!(debug_assertions) {
self.current.total_read_count.fetch_add(1, SeqCst); self.current.total_read_count.fetch_add(1, Relaxed);
} }
if task_deps.read_set.insert(source) { if task_deps.read_set.insert(source) {
task_deps.reads.push(source); task_deps.reads.push(source);
@ -1129,7 +1129,7 @@ impl DepGraphData {
} }
} }
} else if cfg!(debug_assertions) { } else if cfg!(debug_assertions) {
self.current.total_duplicate_read_count.fetch_add(1, SeqCst); self.current.total_duplicate_read_count.fetch_add(1, Relaxed);
} }
} }
}) })