1 files changed, 21 insertions, 0 deletions
diff --git a/tests/codegen-llvm/zip.rs b/tests/codegen-llvm/zip.rs
new file mode 100644
index 00000000000..38ecf7c15c6
--- /dev/null
+++ b/tests/codegen-llvm/zip.rs
@@ -0,0 +1,21 @@
+//@ compile-flags: -Cno-prepopulate-passes -Copt-level=3
+
+#![crate_type = "lib"]
+
+// CHECK-LABEL: @zip_copy
+#[no_mangle]
+pub fn zip_copy(xs: &[u8], ys: &mut [u8]) {
+    // CHECK: memcpy
+    for (x, y) in xs.iter().zip(ys) {
+        *y = *x;
+    }
+}
+
+// CHECK-LABEL: @zip_copy_mapped
+#[no_mangle]
+pub fn zip_copy_mapped(xs: &[u8], ys: &mut [u8]) {
+    // CHECK: memcpy
+    for (x, y) in xs.iter().map(|&x| x).zip(ys) {
+        *y = x;
+    }
+}