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Changed implementation of bsrli in avx512.rs to match that of bslli, fixing a bug in the process.

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This commit is contained in:
satiscugcat
2025-06-04 17:45:39 +05:30
committed by Amanieu d'Antras
parent 09475721a8
commit 48dafaa1c7
1 changed files with 78 additions and 195 deletions
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273
library/stdarch/crates/core_arch/src/x86/avx512bw.rs
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@@ -11208,203 +11208,86 @@ pub fn _mm512_bslli_epi128<const IMM8: i32>(a: __m512i) -> __m512i {
pub fn _mm512_bsrli_epi128<const IMM8: i32>(a: __m512i) -> __m512i {
unsafe {
static_assert_uimm_bits!(IMM8, 8);
const fn mask(shift: i32, i: u32) -> u32 {
let shift = shift as u32 & 0xff;
if shift > 15 || (15 - (i % 16)) < shift {
0
} else {
64 + (i + shift)
}
}
let a = a.as_i8x64();
let zero = i8x64::ZERO;
let r: i8x64 = match IMM8 % 16 {
0 => {
simd_shuffle!(
a,
zero,
[
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
59, 60, 61, 62, 63,
],
)
}
1 => {
simd_shuffle!(
a,
zero,
[
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 80, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 96, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
60, 61, 62, 63, 112,
],
)
}
2 => {
simd_shuffle!(
a,
zero,
[
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, 30, 31, 80, 81, 34, 35, 36, 37, 38, 39, 40, 41,
42, 43, 44, 45, 46, 47, 96, 97, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
61, 62, 63, 112, 113,
],
)
}
3 => {
simd_shuffle!(
a,
zero,
[
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 19, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, 30, 31, 80, 81, 82, 35, 36, 37, 38, 39, 40, 41,
42, 43, 44, 45, 46, 47, 96, 97, 98, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
61, 62, 63, 112, 113, 114,
],
)
}
4 => {
simd_shuffle!(
a,
zero,
[
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30, 31, 80, 81, 82, 83, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 96, 97, 98, 99, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
62, 63, 112, 113, 114, 115,
],
)
}
5 => {
simd_shuffle!(
a,
zero,
[
5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 80, 81, 82, 83, 84, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 96, 97, 98, 99, 100, 53, 54, 55, 56, 57, 58, 59, 60, 61,
62, 63, 112, 113, 114, 115, 116,
],
)
}
6 => {
simd_shuffle!(
a,
zero,
[
6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 22, 23, 24, 25,
26, 27, 28, 29, 30, 31, 80, 81, 82, 83, 84, 85, 38, 39, 40, 41, 42, 43, 44,
45, 46, 47, 96, 97, 98, 99, 100, 101, 54, 55, 56, 57, 58, 59, 60, 61, 62,
63, 112, 113, 114, 115, 116, 117,
],
)
}
7 => {
simd_shuffle!(
a,
zero,
[
7, 8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 23, 24, 25,
26, 27, 28, 29, 30, 31, 80, 81, 82, 83, 84, 85, 86, 39, 40, 41, 42, 43, 44,
45, 46, 47, 96, 97, 98, 99, 100, 101, 102, 55, 56, 57, 58, 59, 60, 61, 62,
63, 112, 113, 114, 115, 116, 117, 118,
],
)
}
8 => {
simd_shuffle!(
a,
zero,
[
8, 9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 24, 25, 26,
27, 28, 29, 30, 31, 80, 81, 82, 83, 84, 85, 86, 87, 40, 41, 42, 43, 44, 45,
46, 47, 96, 97, 98, 99, 100, 101, 102, 103, 56, 57, 58, 59, 60, 61, 62, 63,
112, 113, 114, 115, 116, 117, 118, 119,
],
)
}
9 => {
simd_shuffle!(
a,
zero,
[
9, 10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 25, 26, 27,
28, 29, 30, 31, 80, 81, 82, 83, 84, 85, 86, 87, 88, 41, 42, 43, 44, 45, 46,
47, 96, 97, 98, 99, 100, 101, 102, 103, 104, 57, 58, 59, 60, 61, 62, 63,
112, 113, 114, 115, 116, 117, 118, 119, 120,
],
)
}
10 => {
simd_shuffle!(
a,
zero,
[
10, 11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 26, 27, 28,
29, 30, 31, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 42, 43, 44, 45, 46, 47,
96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 58, 59, 60, 61, 62, 63, 112,
113, 114, 115, 116, 117, 118, 119, 120, 121,
],
)
}
11 => {
simd_shuffle!(
a,
zero,
[
11, 12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 27, 28, 29,
30, 31, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 43, 44, 45, 46, 47, 96,
97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 59, 60, 61, 62, 63, 112,
113, 114, 115, 116, 117, 118, 119, 120, 121, 122,
],
)
}
12 => {
simd_shuffle!(
a,
zero,
[
12, 13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 28, 29, 30,
31, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 44, 45, 46, 47, 96, 97,
98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 60, 61, 62, 63, 112, 113,
114, 115, 116, 117, 118, 119, 120, 121, 122, 123,
],
)
}
13 => {
simd_shuffle!(
a,
zero,
[
13, 14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 29, 30, 31,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 45, 46, 47, 96, 97, 98,
99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 61, 62, 63, 112, 113, 114,
115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
],
)
}
14 => {
simd_shuffle!(
a,
zero,
[
14, 15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 30, 31, 80,
81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 46, 47, 96, 97, 98, 99,
100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 62, 63, 112, 113, 114,
115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
],
)
}
15 => {
simd_shuffle!(
a,
zero,
[
15, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 31, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 47, 96, 97, 98, 99,
100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 63, 112, 113, 114,
115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126,
],
)
}
_ => zero,
};
let r: i8x64 = simd_shuffle!(
zero,
a,
[
mask(IMM8, 0),
mask(IMM8, 1),
mask(IMM8, 2),
mask(IMM8, 3),
mask(IMM8, 4),
mask(IMM8, 5),
mask(IMM8, 6),
mask(IMM8, 7),
mask(IMM8, 8),
mask(IMM8, 9),
mask(IMM8, 10),
mask(IMM8, 11),
mask(IMM8, 12),
mask(IMM8, 13),
mask(IMM8, 14),
mask(IMM8, 15),
mask(IMM8, 16),
mask(IMM8, 17),
mask(IMM8, 18),
mask(IMM8, 19),
mask(IMM8, 20),
mask(IMM8, 21),
mask(IMM8, 22),
mask(IMM8, 23),
mask(IMM8, 24),
mask(IMM8, 25),
mask(IMM8, 26),
mask(IMM8, 27),
mask(IMM8, 28),
mask(IMM8, 29),
mask(IMM8, 30),
mask(IMM8, 31),
mask(IMM8, 32),
mask(IMM8, 33),
mask(IMM8, 34),
mask(IMM8, 35),
mask(IMM8, 36),
mask(IMM8, 37),
mask(IMM8, 38),
mask(IMM8, 39),
mask(IMM8, 40),
mask(IMM8, 41),
mask(IMM8, 42),
mask(IMM8, 43),
mask(IMM8, 44),
mask(IMM8, 45),
mask(IMM8, 46),
mask(IMM8, 47),
mask(IMM8, 48),
mask(IMM8, 49),
mask(IMM8, 50),
mask(IMM8, 51),
mask(IMM8, 52),
mask(IMM8, 53),
mask(IMM8, 54),
mask(IMM8, 55),
mask(IMM8, 56),
mask(IMM8, 57),
mask(IMM8, 58),
mask(IMM8, 59),
mask(IMM8, 60),
mask(IMM8, 61),
mask(IMM8, 62),
mask(IMM8, 63),
],
);
transmute(r)
}
}