|  | // This test is a mirror of mir-opt/issues/issue-59352.rs. The LLVM inliner doesn't inline | 
|  | // `char::method::is_digit()` and `char::method::to_digit()`, probably because of their size. | 
|  | // | 
|  | // Currently, the MIR optimizer isn't capable of removing the unreachable panic in this test case. | 
|  | // Once the optimizer can do that, mir-opt/issues/issue-59352.rs will need to be updated and this | 
|  | // test case should be removed as it will become redundant. | 
|  |  | 
|  | // mir-opt-level=3 enables inlining and enables LLVM to optimize away the unreachable panic call. | 
|  | //@ compile-flags: -Copt-level=3 -Z mir-opt-level=3 | 
|  |  | 
|  | #![crate_type = "rlib"] | 
|  |  | 
|  | // CHECK-LABEL: @num_to_digit | 
|  | #[no_mangle] | 
|  | pub fn num_to_digit(num: char) -> u32 { | 
|  | // CHECK-NOT: panic | 
|  | if num.is_digit(8) { num.to_digit(8).unwrap() } else { 0 } | 
|  | } |