projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc | 1 | // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
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2 | // file at the top-level directory of this distribution and at |
| 3 | // http://rust-lang.org/COPYRIGHT. | |
| 4 | // | |
| 5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
| 6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
| 7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
| 8 | // option. This file may not be copied, modified, or distributed | |
| 9 | // except according to those terms. | |
| 10 | ||
| 1a4d82fc | 11 | #![feature(intrinsics)] |
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12 | |
| 13 | mod rusti { | |
| 1a4d82fc | 14 | extern "rust-intrinsic" { |
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15 | pub fn ctpop<T>(x: T) -> T; |
| 16 | pub fn ctlz<T>(x: T) -> T; | |
| 17 | pub fn cttz<T>(x: T) -> T; | |
| 18 | pub fn bswap<T>(x: T) -> T; | |
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19 | } |
| 20 | } | |
| 21 | ||
| 22 | pub fn main() { | |
| 23 | unsafe { | |
| 24 | use rusti::*; | |
| 25 | ||
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26 | assert_eq!(ctpop(0u8), 0); assert_eq!(ctpop(0i8), 0); |
| 27 | assert_eq!(ctpop(0u16), 0); assert_eq!(ctpop(0i16), 0); | |
| 28 | assert_eq!(ctpop(0u32), 0); assert_eq!(ctpop(0i32), 0); | |
| 29 | assert_eq!(ctpop(0u64), 0); assert_eq!(ctpop(0i64), 0); | |
| 30 | ||
| 31 | assert_eq!(ctpop(1u8), 1); assert_eq!(ctpop(1i8), 1); | |
| 32 | assert_eq!(ctpop(1u16), 1); assert_eq!(ctpop(1i16), 1); | |
| 33 | assert_eq!(ctpop(1u32), 1); assert_eq!(ctpop(1i32), 1); | |
| 34 | assert_eq!(ctpop(1u64), 1); assert_eq!(ctpop(1i64), 1); | |
| 35 | ||
| 36 | assert_eq!(ctpop(10u8), 2); assert_eq!(ctpop(10i8), 2); | |
| 37 | assert_eq!(ctpop(10u16), 2); assert_eq!(ctpop(10i16), 2); | |
| 38 | assert_eq!(ctpop(10u32), 2); assert_eq!(ctpop(10i32), 2); | |
| 39 | assert_eq!(ctpop(10u64), 2); assert_eq!(ctpop(10i64), 2); | |
| 40 | ||
| 41 | assert_eq!(ctpop(100u8), 3); assert_eq!(ctpop(100i8), 3); | |
| 42 | assert_eq!(ctpop(100u16), 3); assert_eq!(ctpop(100i16), 3); | |
| 43 | assert_eq!(ctpop(100u32), 3); assert_eq!(ctpop(100i32), 3); | |
| 44 | assert_eq!(ctpop(100u64), 3); assert_eq!(ctpop(100i64), 3); | |
| 45 | ||
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46 | assert_eq!(ctpop(-1i8 as u8), 8); assert_eq!(ctpop(-1i8), 8); |
| 47 | assert_eq!(ctpop(-1i16 as u16), 16); assert_eq!(ctpop(-1i16), 16); | |
| 48 | assert_eq!(ctpop(-1i32 as u32), 32); assert_eq!(ctpop(-1i32), 32); | |
| 49 | assert_eq!(ctpop(-1i64 as u64), 64); assert_eq!(ctpop(-1i64), 64); | |
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50 | |
| 51 | assert_eq!(ctlz(0u8), 8); assert_eq!(ctlz(0i8), 8); | |
| 52 | assert_eq!(ctlz(0u16), 16); assert_eq!(ctlz(0i16), 16); | |
| 53 | assert_eq!(ctlz(0u32), 32); assert_eq!(ctlz(0i32), 32); | |
| 54 | assert_eq!(ctlz(0u64), 64); assert_eq!(ctlz(0i64), 64); | |
| 55 | ||
| 56 | assert_eq!(ctlz(1u8), 7); assert_eq!(ctlz(1i8), 7); | |
| 57 | assert_eq!(ctlz(1u16), 15); assert_eq!(ctlz(1i16), 15); | |
| 58 | assert_eq!(ctlz(1u32), 31); assert_eq!(ctlz(1i32), 31); | |
| 59 | assert_eq!(ctlz(1u64), 63); assert_eq!(ctlz(1i64), 63); | |
| 60 | ||
| 61 | assert_eq!(ctlz(10u8), 4); assert_eq!(ctlz(10i8), 4); | |
| 62 | assert_eq!(ctlz(10u16), 12); assert_eq!(ctlz(10i16), 12); | |
| 63 | assert_eq!(ctlz(10u32), 28); assert_eq!(ctlz(10i32), 28); | |
| 64 | assert_eq!(ctlz(10u64), 60); assert_eq!(ctlz(10i64), 60); | |
| 65 | ||
| 66 | assert_eq!(ctlz(100u8), 1); assert_eq!(ctlz(100i8), 1); | |
| 67 | assert_eq!(ctlz(100u16), 9); assert_eq!(ctlz(100i16), 9); | |
| 68 | assert_eq!(ctlz(100u32), 25); assert_eq!(ctlz(100i32), 25); | |
| 69 | assert_eq!(ctlz(100u64), 57); assert_eq!(ctlz(100i64), 57); | |
| 70 | ||
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71 | assert_eq!(cttz(-1i8 as u8), 0); assert_eq!(cttz(-1i8), 0); |
| 72 | assert_eq!(cttz(-1i16 as u16), 0); assert_eq!(cttz(-1i16), 0); | |
| 73 | assert_eq!(cttz(-1i32 as u32), 0); assert_eq!(cttz(-1i32), 0); | |
| 74 | assert_eq!(cttz(-1i64 as u64), 0); assert_eq!(cttz(-1i64), 0); | |
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75 | |
| 76 | assert_eq!(cttz(0u8), 8); assert_eq!(cttz(0i8), 8); | |
| 77 | assert_eq!(cttz(0u16), 16); assert_eq!(cttz(0i16), 16); | |
| 78 | assert_eq!(cttz(0u32), 32); assert_eq!(cttz(0i32), 32); | |
| 79 | assert_eq!(cttz(0u64), 64); assert_eq!(cttz(0i64), 64); | |
| 80 | ||
| 81 | assert_eq!(cttz(1u8), 0); assert_eq!(cttz(1i8), 0); | |
| 82 | assert_eq!(cttz(1u16), 0); assert_eq!(cttz(1i16), 0); | |
| 83 | assert_eq!(cttz(1u32), 0); assert_eq!(cttz(1i32), 0); | |
| 84 | assert_eq!(cttz(1u64), 0); assert_eq!(cttz(1i64), 0); | |
| 85 | ||
| 86 | assert_eq!(cttz(10u8), 1); assert_eq!(cttz(10i8), 1); | |
| 87 | assert_eq!(cttz(10u16), 1); assert_eq!(cttz(10i16), 1); | |
| 88 | assert_eq!(cttz(10u32), 1); assert_eq!(cttz(10i32), 1); | |
| 89 | assert_eq!(cttz(10u64), 1); assert_eq!(cttz(10i64), 1); | |
| 90 | ||
| 91 | assert_eq!(cttz(100u8), 2); assert_eq!(cttz(100i8), 2); | |
| 92 | assert_eq!(cttz(100u16), 2); assert_eq!(cttz(100i16), 2); | |
| 93 | assert_eq!(cttz(100u32), 2); assert_eq!(cttz(100i32), 2); | |
| 94 | assert_eq!(cttz(100u64), 2); assert_eq!(cttz(100i64), 2); | |
| 95 | ||
| 96 | assert_eq!(bswap(0x0Au8), 0x0A); // no-op | |
| 97 | assert_eq!(bswap(0x0Ai8), 0x0A); // no-op | |
| 98 | assert_eq!(bswap(0x0A0Bu16), 0x0B0A); | |
| 99 | assert_eq!(bswap(0x0A0Bi16), 0x0B0A); | |
| 100 | assert_eq!(bswap(0x0ABBCC0Du32), 0x0DCCBB0A); | |
| 101 | assert_eq!(bswap(0x0ABBCC0Di32), 0x0DCCBB0A); | |
| 102 | assert_eq!(bswap(0x0122334455667708u64), 0x0877665544332201); | |
| 103 | assert_eq!(bswap(0x0122334455667708i64), 0x0877665544332201); | |
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104 | } |
| 105 | } |