61 lines
1.8 KiB
Rust
61 lines
1.8 KiB
Rust
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use testcrate::*;
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macro_rules! shift {
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($($i:ty, $fn_std:ident, $fn_builtins:ident);*;) => {
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$(
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fuzz_shift(|x: $i, s: u32| {
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let tmp0: $i = x.$fn_std(s);
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let tmp1: $i = $fn_builtins(x, s);
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if tmp0 != tmp1 {
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panic!(
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"{}({}, {}): std: {}, builtins: {}",
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stringify!($fn_builtins), x, s, tmp0, tmp1
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);
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}
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});
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)*
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};
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}
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macro_rules! overflowing_shift {
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($($i:ty, $fn_std:ident, $fn_builtins:ident);*;) => {
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$(
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fuzz_shift(|x: $i, s: u32| {
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let tmp0: $i = x.$fn_std(s);
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let (tmp1, o1): ($i, bool) = $fn_builtins(x, s.into());
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if tmp0 != tmp1 || o1 {
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panic!(
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"{}({}, {}): std: {}, builtins: {}",
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stringify!($fn_builtins), x, s, tmp0, tmp1
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);
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}
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});
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)*
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};
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}
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#[test]
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fn shift() {
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use compiler_builtins::int::shift::{
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__ashldi3, __ashlsi3, __ashlti3, __ashrdi3, __ashrsi3, __ashrti3, __lshrdi3, __lshrsi3,
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__lshrti3, __rust_i128_shlo, __rust_i128_shro, __rust_u128_shlo, __rust_u128_shro,
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};
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shift!(
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u32, wrapping_shl, __ashlsi3;
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u64, wrapping_shl, __ashldi3;
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u128, wrapping_shl, __ashlti3;
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i32, wrapping_shr, __ashrsi3;
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i64, wrapping_shr, __ashrdi3;
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i128, wrapping_shr, __ashrti3;
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u32, wrapping_shr, __lshrsi3;
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u64, wrapping_shr, __lshrdi3;
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u128, wrapping_shr, __lshrti3;
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);
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overflowing_shift!(
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u128, wrapping_shl, __rust_u128_shlo;
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i128, wrapping_shl, __rust_i128_shlo;
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u128, wrapping_shr, __rust_u128_shro;
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i128, wrapping_shr, __rust_i128_shro;
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);
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}
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