1 files changed, 12 insertions, 0 deletions
diff --git a/tests/mir-opt/combine_array_len.rs b/tests/mir-opt/combine_array_len.rs
new file mode 100644
index 00000000000..3ef3bd09afd
--- /dev/null
+++ b/tests/mir-opt/combine_array_len.rs
@@ -0,0 +1,12 @@
+// unit-test: InstCombine
+// EMIT_MIR combine_array_len.norm2.InstCombine.diff
+
+fn norm2(x: [f32; 2]) -> f32 {
+    let a = x[0];
+    let b = x[1];
+    a*a + b*b
+}
+
+fn main() {
+    assert_eq!(norm2([3.0, 4.0]), 5.0*5.0);
+}