diff --git a/tests/legacy/examples/lib/BUILD.bazel b/tests/legacy/examples/lib/BUILD.bazel
index d12aa76d19..cbc89b4172 100644
--- a/tests/legacy/examples/lib/BUILD.bazel
+++ b/tests/legacy/examples/lib/BUILD.bazel
@@ -7,10 +7,12 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
 go_library(
     name = "go_default_library",
     srcs = [
-        "add.s",
+        "add_amd64.s",
+        "add_arm64.s",
         "asm.go",
         "lib.go",
-        "sub.s",
+        "sub_amd64.s",
+        "sub_arm64.s",
     ],
     importpath = "github.com/bazelbuild/rules_go/examples/lib",
     deps = ["//tests/legacy/examples/lib/deep:go_default_library"],
diff --git a/tests/legacy/examples/lib/add.s b/tests/legacy/examples/lib/add_amd64.s
similarity index 100%
rename from tests/legacy/examples/lib/add.s
rename to tests/legacy/examples/lib/add_amd64.s
diff --git a/tests/legacy/examples/lib/add_arm64.s b/tests/legacy/examples/lib/add_arm64.s
new file mode 100644
index 0000000000..7ade97d339
--- /dev/null
+++ b/tests/legacy/examples/lib/add_arm64.s
@@ -0,0 +1,20 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+TEXT ·add(SB), $0
+	MOVD x+0(FP), R0
+	MOVD y+8(FP), R1
+	ADD R0, R1, R0
+	MOVD R0, ret+16(FP)
+	RET
diff --git a/tests/legacy/examples/lib/sub.s b/tests/legacy/examples/lib/sub_amd64.s
similarity index 100%
rename from tests/legacy/examples/lib/sub.s
rename to tests/legacy/examples/lib/sub_amd64.s
diff --git a/tests/legacy/examples/lib/sub_arm64.s b/tests/legacy/examples/lib/sub_arm64.s
new file mode 100644
index 0000000000..0af72ce83a
--- /dev/null
+++ b/tests/legacy/examples/lib/sub_arm64.s
@@ -0,0 +1,20 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+TEXT ·sub(SB), $0
+	MOVD x+0(FP), R0
+	MOVD y+8(FP), R1
+	SUB R0, R1, R0
+	MOVD R0, ret+16(FP)
+	RET