1 files changed, 20 insertions, 0 deletions
diff --git a/tests/codegen/asm/x86-clobbers.rs b/tests/codegen/asm/x86-clobbers.rs
new file mode 100644
index 00000000000..4094db74134
--- /dev/null
+++ b/tests/codegen/asm/x86-clobbers.rs
@@ -0,0 +1,20 @@
+//@ compile-flags: -O
+//@ only-x86_64
+
+#![crate_type = "rlib"]
+
+use std::arch::asm;
+
+// CHECK-LABEL: @x87_clobber
+// CHECK: ~{st},~{st(1)},~{st(2)},~{st(3)},~{st(4)},~{st(5)},~{st(6)},~{st(7)}
+#[no_mangle]
+pub unsafe fn x87_clobber() {
+    asm!("foo", out("st") _);
+}
+
+// CHECK-LABEL: @mmx_clobber
+// CHECK: ~{st},~{st(1)},~{st(2)},~{st(3)},~{st(4)},~{st(5)},~{st(6)},~{st(7)}
+#[no_mangle]
+pub unsafe fn mmx_clobber() {
+    asm!("bar", out("mm0") _, out("mm1") _);
+}