1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-21634.rs b/src/test/ui/issues/issue-21634.rs
new file mode 100644
index 000000000..2731bfd76
--- /dev/null
+++ b/src/test/ui/issues/issue-21634.rs
@@ -0,0 +1,20 @@
+// run-pass
+#![allow(stable_features)]
+
+#![feature(cfg_target_feature)]
+
+#[cfg(any(not(target_arch = "x86"), target_feature = "sse2"))]
+fn main() {
+    if let Ok(x) = "3.1415".parse::<f64>() {
+        assert_eq!(false, x <= 0.0);
+    }
+    if let Ok(x) = "3.1415".parse::<f64>() {
+        assert_eq!(3.1415, x + 0.0);
+    }
+    if let Ok(mut x) = "3.1415".parse::<f64>() {
+        assert_eq!(8.1415, { x += 5.0; x });
+    }
+}
+
+#[cfg(all(target_arch = "x86", not(target_feature = "sse2")))]
+fn main() {}