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Add bitreverse intrinsic

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This commit is contained in:
Amanieu d'Antras 2016-04-07 18:16:40 +01:00
parent 0ff9872b22
commit 02e021b6d4
5 changed files with 28 additions and 3 deletions
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10
src/test/run-pass/intrinsics-integer.rs
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@ -18,6 +18,7 @@ mod rusti {
pub fn cttz<T>(x: T) -> T;
pub fn cttz_nonzero<T>(x: T) -> T;
pub fn bswap<T>(x: T) -> T;
pub fn bitreverse<T>(x: T) -> T;
}
}
@ -138,5 +139,14 @@ pub fn main() {
assert_eq!(bswap(0x0ABBCC0Di32), 0x0DCCBB0A);
assert_eq!(bswap(0x0122334455667708u64), 0x0877665544332201);
assert_eq!(bswap(0x0122334455667708i64), 0x0877665544332201);
assert_eq!(bitreverse(0x0Au8), 0x50);
assert_eq!(bitreverse(0x0Ai8), 0x50);
assert_eq!(bitreverse(0x0A0Cu16), 0x3050);
assert_eq!(bitreverse(0x0A0Ci16), 0x3050);
assert_eq!(bitreverse(0x0ABBCC0Eu32), 0x7033DD50);
assert_eq!(bitreverse(0x0ABBCC0Ei32), 0x7033DD50);
assert_eq!(bitreverse(0x0122334455667708u64), 0x10EE66AA22CC4480);
assert_eq!(bitreverse(0x0122334455667708i64), 0x10EE66AA22CC4480);
}
}