| //@ compile-flags: -C panic=abort |
| //@ revisions: NONWASM WASM WASMEXN |
| //@ [NONWASM] ignore-wasm32 |
| //@ [WASM] only-wasm32 |
| //@ [WASMEXN] only-wasm32 |
| //@ [WASMEXN] compile-flags: -Ctarget-feature=+exception-handling |
| |
| // 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. |
| // NONWASM: call void @{{.*core9panicking19panic_cannot_unwind}} |
| // WASMEXN: call void @{{.*core9panicking19panic_cannot_unwind}} |
| // WASM-NOT: 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{{.*}} } |
