mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-30 22:12:15 +00:00
28 lines
962 B
Rust
28 lines
962 B
Rust
//@ compile-flags: -C panic=abort
|
|
|
|
// Test that `nounwind` attributes are also applied to extern `C-unwind` Rust functions
|
|
// when the code is compiled with `panic=abort`.
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
// CHECK: @rust_item_that_can_unwind() unnamed_addr [[ATTR0:#[0-9]+]]
|
|
#[no_mangle]
|
|
pub unsafe extern "C-unwind" fn rust_item_that_can_unwind() {
|
|
// Handle both legacy and v0 symbol mangling.
|
|
// CHECK: call void @{{.*core9panicking19panic_cannot_unwind}}
|
|
may_unwind();
|
|
}
|
|
|
|
extern "C-unwind" {
|
|
// CHECK: @may_unwind() unnamed_addr [[ATTR1:#[0-9]+]]
|
|
fn may_unwind();
|
|
}
|
|
|
|
// Now, make sure that the LLVM attributes for this functions are correct. First, make
|
|
// sure that the first item is correctly marked with the `nounwind` attribute:
|
|
//
|
|
// CHECK: attributes [[ATTR0]] = { {{.*}}nounwind{{.*}} }
|
|
//
|
|
// Now, check that foreign item is correctly marked without the `nounwind` attribute.
|
|
// CHECK-NOT: attributes [[ATTR1]] = { {{.*}}nounwind{{.*}} }
|