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Implement rotate_elements_{left,right} on masks #360

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Merged
Shnatsel merged 2 commits into from
Sep 3, 2026
+3,038 −15
Merged

Implement rotate_elements_{left,right} on masks #360

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1d89c39
Implement rotate_elements_{left,right} on masks
Shnatsel Aug 29, 2026
7e1c9cf
Add tests for alternating bit pattern rotations
Shnatsel Sep 3, 2026
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360 changes: 360 additions & 0 deletions fearless_simd/src/generated/avx2.rs
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282 changes: 282 additions & 0 deletions fearless_simd/src/generated/avx512.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2012,6 +2012,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask8x16<const OFFSET: usize>(
self,
a: mask8x16<Self>,
) -> mask8x16<Self> {
mask8x16 {
val: (a.val.rotate_right((OFFSET % 16) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask8x16<const OFFSET: usize>(
self,
a: mask8x16<Self>,
) -> mask8x16<Self> {
mask8x16 {
val: (a.val.rotate_left((OFFSET % 16) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask8x16(self, a: mask8x16<Self>, b: mask8x16<Self>) -> mask8x16<Self> {
mask8x16 {
val: ((u64::from((a).val) & u64::from((b).val)) & 65535u64) as _,
Expand Down Expand Up @@ -3081,6 +3101,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask16x8<const OFFSET: usize>(
self,
a: mask16x8<Self>,
) -> mask16x8<Self> {
mask16x8 {
val: (a.val.rotate_right((OFFSET % 8) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask16x8<const OFFSET: usize>(
self,
a: mask16x8<Self>,
) -> mask16x8<Self> {
mask16x8 {
val: (a.val.rotate_left((OFFSET % 8) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask16x8(self, a: mask16x8<Self>, b: mask16x8<Self>) -> mask16x8<Self> {
mask16x8 {
val: ((u64::from((a).val) & u64::from((b).val)) & 255u64) as _,
Expand Down Expand Up @@ -4129,6 +4169,40 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask32x4<const OFFSET: usize>(
self,
a: mask32x4<Self>,
) -> mask32x4<Self> {
let bits = u64::from((a).val) & 15u64;
let offset = OFFSET % 4;
let bits = if offset == 0 {
bits
} else {
((bits >> offset) | (bits << (4 - offset))) & 15u64
};
mask32x4 {
val: (bits) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask32x4<const OFFSET: usize>(
self,
a: mask32x4<Self>,
) -> mask32x4<Self> {
let bits = u64::from((a).val) & 15u64;
let offset = OFFSET % 4;
let bits = if offset == 0 {
bits
} else {
((bits << offset) | (bits >> (4 - offset))) & 15u64
};
mask32x4 {
val: (bits) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask32x4(self, a: mask32x4<Self>, b: mask32x4<Self>) -> mask32x4<Self> {
mask32x4 {
val: ((u64::from((a).val) & u64::from((b).val)) & 15u64) as _,
Expand Down Expand Up @@ -5644,6 +5718,40 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask64x2<const OFFSET: usize>(
self,
a: mask64x2<Self>,
) -> mask64x2<Self> {
let bits = u64::from((a).val) & 3u64;
let offset = OFFSET % 2;
let bits = if offset == 0 {
bits
} else {
((bits >> offset) | (bits << (2 - offset))) & 3u64
};
mask64x2 {
val: (bits) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask64x2<const OFFSET: usize>(
self,
a: mask64x2<Self>,
) -> mask64x2<Self> {
let bits = u64::from((a).val) & 3u64;
let offset = OFFSET % 2;
let bits = if offset == 0 {
bits
} else {
((bits << offset) | (bits >> (2 - offset))) & 3u64
};
mask64x2 {
val: (bits) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask64x2(self, a: mask64x2<Self>, b: mask64x2<Self>) -> mask64x2<Self> {
mask64x2 {
val: ((u64::from((a).val) & u64::from((b).val)) & 3u64) as _,
Expand Down Expand Up @@ -7321,6 +7429,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask8x32<const OFFSET: usize>(
self,
a: mask8x32<Self>,
) -> mask8x32<Self> {
mask8x32 {
val: (a.val.rotate_right((OFFSET % 32) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask8x32<const OFFSET: usize>(
self,
a: mask8x32<Self>,
) -> mask8x32<Self> {
mask8x32 {
val: (a.val.rotate_left((OFFSET % 32) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask8x32(self, a: mask8x32<Self>, b: mask8x32<Self>) -> mask8x32<Self> {
mask8x32 {
val: ((u64::from((a).val) & u64::from((b).val)) & 4294967295u64) as _,
Expand Down Expand Up @@ -8382,6 +8510,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask16x16<const OFFSET: usize>(
self,
a: mask16x16<Self>,
) -> mask16x16<Self> {
mask16x16 {
val: (a.val.rotate_right((OFFSET % 16) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask16x16<const OFFSET: usize>(
self,
a: mask16x16<Self>,
) -> mask16x16<Self> {
mask16x16 {
val: (a.val.rotate_left((OFFSET % 16) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask16x16(self, a: mask16x16<Self>, b: mask16x16<Self>) -> mask16x16<Self> {
mask16x16 {
val: ((u64::from((a).val) & u64::from((b).val)) & 65535u64) as _,
Expand Down Expand Up @@ -9420,6 +9568,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask32x8<const OFFSET: usize>(
self,
a: mask32x8<Self>,
) -> mask32x8<Self> {
mask32x8 {
val: (a.val.rotate_right((OFFSET % 8) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask32x8<const OFFSET: usize>(
self,
a: mask32x8<Self>,
) -> mask32x8<Self> {
mask32x8 {
val: (a.val.rotate_left((OFFSET % 8) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask32x8(self, a: mask32x8<Self>, b: mask32x8<Self>) -> mask32x8<Self> {
mask32x8 {
val: ((u64::from((a).val) & u64::from((b).val)) & 255u64) as _,
Expand Down Expand Up @@ -10918,6 +11086,40 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask64x4<const OFFSET: usize>(
self,
a: mask64x4<Self>,
) -> mask64x4<Self> {
let bits = u64::from((a).val) & 15u64;
let offset = OFFSET % 4;
let bits = if offset == 0 {
bits
} else {
((bits >> offset) | (bits << (4 - offset))) & 15u64
};
mask64x4 {
val: (bits) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask64x4<const OFFSET: usize>(
self,
a: mask64x4<Self>,
) -> mask64x4<Self> {
let bits = u64::from((a).val) & 15u64;
let offset = OFFSET % 4;
let bits = if offset == 0 {
bits
} else {
((bits << offset) | (bits >> (4 - offset))) & 15u64
};
mask64x4 {
val: (bits) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask64x4(self, a: mask64x4<Self>, b: mask64x4<Self>) -> mask64x4<Self> {
mask64x4 {
val: ((u64::from((a).val) & u64::from((b).val)) & 15u64) as _,
Expand Down Expand Up @@ -12654,6 +12856,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask8x64<const OFFSET: usize>(
self,
a: mask8x64<Self>,
) -> mask8x64<Self> {
mask8x64 {
val: a.val.rotate_right((OFFSET % 64) as u32),
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask8x64<const OFFSET: usize>(
self,
a: mask8x64<Self>,
) -> mask8x64<Self> {
mask8x64 {
val: a.val.rotate_left((OFFSET % 64) as u32),
simd: self,
}
}
#[inline(always)]
fn and_mask8x64(self, a: mask8x64<Self>, b: mask8x64<Self>) -> mask8x64<Self> {
mask8x64 {
val: (u64::from((a).val) & u64::from((b).val)) & u64::MAX,
Expand Down Expand Up @@ -13729,6 +13951,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask16x32<const OFFSET: usize>(
self,
a: mask16x32<Self>,
) -> mask16x32<Self> {
mask16x32 {
val: (a.val.rotate_right((OFFSET % 32) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask16x32<const OFFSET: usize>(
self,
a: mask16x32<Self>,
) -> mask16x32<Self> {
mask16x32 {
val: (a.val.rotate_left((OFFSET % 32) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask16x32(self, a: mask16x32<Self>, b: mask16x32<Self>) -> mask16x32<Self> {
mask16x32 {
val: ((u64::from((a).val) & u64::from((b).val)) & 4294967295u64) as _,
Expand Down Expand Up @@ -14788,6 +15030,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask32x16<const OFFSET: usize>(
self,
a: mask32x16<Self>,
) -> mask32x16<Self> {
mask32x16 {
val: (a.val.rotate_right((OFFSET % 16) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask32x16<const OFFSET: usize>(
self,
a: mask32x16<Self>,
) -> mask32x16<Self> {
mask32x16 {
val: (a.val.rotate_left((OFFSET % 16) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask32x16(self, a: mask32x16<Self>, b: mask32x16<Self>) -> mask32x16<Self> {
mask32x16 {
val: ((u64::from((a).val) & u64::from((b).val)) & 65535u64) as _,
Expand Down Expand Up @@ -16309,6 +16571,26 @@ impl Simd for Avx512 {
};
}
#[inline(always)]
fn rotate_elements_left_mask64x8<const OFFSET: usize>(
self,
a: mask64x8<Self>,
) -> mask64x8<Self> {
mask64x8 {
val: (a.val.rotate_right((OFFSET % 8) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn rotate_elements_right_mask64x8<const OFFSET: usize>(
self,
a: mask64x8<Self>,
) -> mask64x8<Self> {
mask64x8 {
val: (a.val.rotate_left((OFFSET % 8) as u32)) as _,
simd: self,
}
}
#[inline(always)]
fn and_mask64x8(self, a: mask64x8<Self>, b: mask64x8<Self>) -> mask64x8<Self> {
mask64x8 {
val: ((u64::from((a).val) & u64::from((b).val)) & 255u64) as _,
Expand Down
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