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Optimize bitreverse codegen

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This commit is contained in:
Arpan Kapoor 2023-03-24 13:06:20 +05:30
parent 08a6d6e16b
commit 77a9effd3d
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2 changed files with 41 additions and 125 deletions
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5
example/mini_core_hello_world.rs
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@ -168,6 +168,11 @@ fn main() {
world as Box<dyn SomeTrait>;
assert_eq!(intrinsics::bitreverse(0b10101000u8), 0b00010101u8);
assert_eq!(intrinsics::bitreverse(0xddccu16), 0x33bbu16);
assert_eq!(intrinsics::bitreverse(0xffee_ddccu32), 0x33bb77ffu32);
assert_eq!(intrinsics::bitreverse(0x1234_5678_ffee_ddccu64), 0x33bb77ff1e6a2c48u64);
// != cannot be applied to type u128?
// assert_eq!(intrinsics::bitreverse(0x1234_5678_ffee_ddcc_1234_5678_ffee_ddccu128), 0x33bb77ff1e6a2c4833bb77ff1e6a2c48u128);
assert_eq!(intrinsics::bswap(0xabu8), 0xabu8);
assert_eq!(intrinsics::bswap(0xddccu16), 0xccddu16);