| // compile-flags: -C no-prepopulate-passes |
| |
| #![crate_type = "lib"] |
| |
| struct SomeUniqueName; |
| |
| impl Drop for SomeUniqueName { |
| fn drop(&mut self) { |
| } |
| } |
| |
| pub fn possibly_unwinding() { |
| } |
| |
| // CHECK-LABEL: @droppy |
| #[no_mangle] |
| pub fn droppy() { |
| // Check that there are exactly 6 drop calls. The cleanups for the unwinding should be reused, so |
| // that's one new drop call per call to possibly_unwinding(), and finally 3 drop calls for the |
| // regular function exit. We used to have problems with quadratic growths of drop calls in such |
| // functions. |
| // CHECK-NOT: invoke{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK: call{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK: call{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK-NOT: call{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK: invoke{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK: call{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK: invoke{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK: call{{.*}}drop{{.*}}SomeUniqueName |
| // CHECK-NOT: {{(call|invoke).*}}drop{{.*}}SomeUniqueName |
| // The next line checks for the } that ends the function definition |
| // CHECK-LABEL: {{^[}]}} |
| let _s = SomeUniqueName; |
| possibly_unwinding(); |
| let _s = SomeUniqueName; |
| possibly_unwinding(); |
| let _s = SomeUniqueName; |
| possibly_unwinding(); |
| } |
