| //@ compile-flags: -C opt-level=1 |
| |
| #![crate_type = "lib"] |
| #![feature(ascii_char)] |
| |
| use std::ascii::Char as AsciiChar; |
| |
| // CHECK-LABEL: i8 @unwrap_digit_from_remainder(i32 |
| #[no_mangle] |
| pub fn unwrap_digit_from_remainder(v: u32) -> AsciiChar { |
| // CHECK-NOT: icmp |
| // CHECK-NOT: panic |
| |
| // CHECK: %[[R:.+]] = urem i32 %v, 10 |
| // CHECK-NEXT: %[[T:.+]] = trunc{{( nuw)?( nsw)?}} i32 %[[R]] to i8 |
| // CHECK-NEXT: %[[D:.+]] = or{{( disjoint)?}} i8 %[[T]], 48 |
| // CHECK-NEXT: ret i8 %[[D]] |
| |
| // CHECK-NOT: icmp |
| // CHECK-NOT: panic |
| AsciiChar::digit((v % 10) as u8).unwrap() |
| } |
| |
| // CHECK-LABEL: i8 @unwrap_from_masked(i8 |
| #[no_mangle] |
| pub fn unwrap_from_masked(b: u8) -> AsciiChar { |
| // CHECK-NOT: icmp |
| // CHECK-NOT: panic |
| |
| // CHECK: %[[M:.+]] = and i8 %b, 127 |
| // CHECK-NEXT: ret i8 %[[M]] |
| |
| // CHECK-NOT: icmp |
| // CHECK-NOT: panic |
| AsciiChar::from_u8(b & 0x7f).unwrap() |
| } |
