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-rw-r--r--src/test/codegen/asm-may_unwind.rs40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/test/codegen/asm-may_unwind.rs b/src/test/codegen/asm-may_unwind.rs
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index 000000000..bf4202764
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+++ b/src/test/codegen/asm-may_unwind.rs
@@ -0,0 +1,40 @@
+// min-llvm-version: 13.0.0
+// compile-flags: -O
+// only-x86_64
+
+#![crate_type = "rlib"]
+#![feature(asm_unwind)]
+
+use std::arch::asm;
+
+#[no_mangle]
+pub extern "C" fn panicky() {}
+
+struct Foo;
+
+impl Drop for Foo {
+ fn drop(&mut self) {
+ println!();
+ }
+}
+
+// CHECK-LABEL: @asm_may_unwind
+#[no_mangle]
+pub unsafe fn asm_may_unwind() {
+ let _m = Foo;
+ // CHECK: invoke void asm sideeffect alignstack inteldialect unwind ""
+ asm!("", options(may_unwind));
+}
+
+// CHECK-LABEL: @asm_with_result_may_unwind
+#[no_mangle]
+pub unsafe fn asm_with_result_may_unwind() -> u64 {
+ let _m = Foo;
+ let res: u64;
+ // CHECK: [[RES:%[0-9]+]] = invoke i64 asm sideeffect alignstack inteldialect unwind
+ // CHECK-NEXT: to label %[[NORMALBB:[a-b0-9]+]]
+ asm!("mov {}, 1", out(reg) res, options(may_unwind));
+ // CHECK: [[NORMALBB]]:
+ // CHECK: ret i64 [[RES:%[0-9]+]]
+ res
+}