// compile-flags: -C opt-level=1 // ignore-debug (the extra assertions get in the way) #![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 i32 %[[R]] to i8 // CHECK-NEXT: %[[D:.+]] = or 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() }