1 files changed, 53 insertions, 0 deletions
diff --git a/tests/codegen-llvm/naked-fn/instruction-set.rs b/tests/codegen-llvm/naked-fn/instruction-set.rs
new file mode 100644
index 00000000000..67560c5aba7
--- /dev/null
+++ b/tests/codegen-llvm/naked-fn/instruction-set.rs
@@ -0,0 +1,53 @@
+//@ add-core-stubs
+//@ revisions: arm-mode thumb-mode
+//@ [arm-mode] compile-flags: --target armv5te-none-eabi
+//@ [thumb-mode] compile-flags: --target thumbv5te-none-eabi
+//@ [arm-mode] needs-llvm-components: arm
+//@ [thumb-mode] needs-llvm-components: arm
+
+#![crate_type = "lib"]
+#![feature(no_core, lang_items, rustc_attrs)]
+#![no_core]
+
+extern crate minicore;
+use minicore::*;
+
+// arm-mode: .arm
+// thumb-mode: .thumb
+// CHECK-LABEL: test_unspecified:
+// CHECK: bx lr
+// CHECK: .popsection
+// arm-mode: .arm
+// thumb-mode: .thumb
+#[no_mangle]
+#[unsafe(naked)]
+extern "C" fn test_unspecified() {
+    naked_asm!("bx lr");
+}
+
+// CHECK: .thumb
+// CHECK: .thumb_func
+// CHECK-LABEL: test_thumb:
+// CHECK: bx lr
+// CHECK: .popsection
+// arm-mode: .arm
+// thumb-mode: .thumb
+#[no_mangle]
+#[unsafe(naked)]
+#[instruction_set(arm::t32)]
+extern "C" fn test_thumb() {
+    naked_asm!("bx lr");
+}
+
+// CHECK: .arm
+// CHECK-LABEL: test_arm:
+// CHECK: bx lr
+// CHECK: .popsection
+// arm-mode: .arm
+// thumb-mode: .thumb
+#[no_mangle]
+#[unsafe(naked)]
+#[instruction_set(arm::a32)]
+extern "C" fn test_arm() {
+    naked_asm!("bx lr");
+}