yield on x86 'pause' hint

diff --git a/src/shims/foreign_items.rs b/src/shims/foreign_items.rs
index 9e531accd06a8dae6c8bf9d77f84d6eed35c92d4..25aece5989b922d212f1349c9315ac7b91d3ed30 100644 (file)
--- a/src/shims/foreign_items.rs
+++ b/src/shims/foreign_items.rs
@@ -434,7 +434,9 @@ fn emulate_foreign_item_by_name(
             }
 
             // Architecture-specific shims
-            "llvm.x86.sse2.pause" if this.tcx.sess.target.target.arch == "x86" || this.tcx.sess.target.target.arch == "x86_64" => {}
+            "llvm.x86.sse2.pause" if this.tcx.sess.target.target.arch == "x86" || this.tcx.sess.target.target.arch == "x86_64" => {
+                this.sched_yield()?;
+            }
 
             // Platform-specific shims
             _ => match this.tcx.sess.target.target.target_os.as_str() {