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jacobbramleyAmanieu
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Support AArch32 Neon dotprod intrinsics.
Note that the feature detection requires a recent Linux kernel (v6.2).
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+305
-236
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7 files changed

+305
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lines changed

crates/core_arch/src/aarch64/neon/generated.rs

Lines changed: 24 additions & 212 deletions
Original file line numberDiff line numberDiff line change
@@ -10557,80 +10557,7 @@ pub unsafe fn vcmlaq_rot270_laneq_f32<const LANE: i32>(a: float32x4_t, b: float3
1055710557
vcmlaq_rot270_f32(a, b, c)
1055810558
}
1055910559

10560-
/// Dot product arithmetic
10561-
///
10562-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdot_s32)
10563-
#[inline]
10564-
#[target_feature(enable = "neon,dotprod")]
10565-
#[cfg_attr(test, assert_instr(sdot))]
10566-
pub unsafe fn vdot_s32(a: int32x2_t, b: int8x8_t, c: int8x8_t) -> int32x2_t {
10567-
#[allow(improper_ctypes)]
10568-
extern "unadjusted" {
10569-
#[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.neon.sdot.v2i32.v8i8")]
10570-
fn vdot_s32_(a: int32x2_t, b: int8x8_t, c: int8x8_t) -> int32x2_t;
10571-
}
10572-
vdot_s32_(a, b, c)
10573-
}
10574-
10575-
/// Dot product arithmetic
10576-
///
10577-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdotq_s32)
10578-
#[inline]
10579-
#[target_feature(enable = "neon,dotprod")]
10580-
#[cfg_attr(test, assert_instr(sdot))]
10581-
pub unsafe fn vdotq_s32(a: int32x4_t, b: int8x16_t, c: int8x16_t) -> int32x4_t {
10582-
#[allow(improper_ctypes)]
10583-
extern "unadjusted" {
10584-
#[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.neon.sdot.v4i32.v16i8")]
10585-
fn vdotq_s32_(a: int32x4_t, b: int8x16_t, c: int8x16_t) -> int32x4_t;
10586-
}
10587-
vdotq_s32_(a, b, c)
10588-
}
10589-
10590-
/// Dot product arithmetic
10591-
///
10592-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdot_u32)
10593-
#[inline]
10594-
#[target_feature(enable = "neon,dotprod")]
10595-
#[cfg_attr(test, assert_instr(udot))]
10596-
pub unsafe fn vdot_u32(a: uint32x2_t, b: uint8x8_t, c: uint8x8_t) -> uint32x2_t {
10597-
#[allow(improper_ctypes)]
10598-
extern "unadjusted" {
10599-
#[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.neon.udot.v2i32.v8i8")]
10600-
fn vdot_u32_(a: uint32x2_t, b: uint8x8_t, c: uint8x8_t) -> uint32x2_t;
10601-
}
10602-
vdot_u32_(a, b, c)
10603-
}
10604-
10605-
/// Dot product arithmetic
10606-
///
10607-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdotq_u32)
10608-
#[inline]
10609-
#[target_feature(enable = "neon,dotprod")]
10610-
#[cfg_attr(test, assert_instr(udot))]
10611-
pub unsafe fn vdotq_u32(a: uint32x4_t, b: uint8x16_t, c: uint8x16_t) -> uint32x4_t {
10612-
#[allow(improper_ctypes)]
10613-
extern "unadjusted" {
10614-
#[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.neon.udot.v4i32.v16i8")]
10615-
fn vdotq_u32_(a: uint32x4_t, b: uint8x16_t, c: uint8x16_t) -> uint32x4_t;
10616-
}
10617-
vdotq_u32_(a, b, c)
10618-
}
10619-
10620-
/// Dot product arithmetic
10621-
///
10622-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdot_lane_s32)
10623-
#[inline]
10624-
#[target_feature(enable = "neon,dotprod")]
10625-
#[cfg_attr(test, assert_instr(sdot, LANE = 0))]
10626-
#[rustc_legacy_const_generics(3)]
10627-
pub unsafe fn vdot_lane_s32<const LANE: i32>(a: int32x2_t, b: int8x8_t, c: int8x8_t) -> int32x2_t {
10628-
static_assert_uimm_bits!(LANE, 1);
10629-
let c: int8x8_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10630-
vdot_s32(a, b, c)
10631-
}
10632-
10633-
/// Dot product arithmetic
10560+
/// Dot product arithmetic (indexed)
1063410561
///
1063510562
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdot_laneq_s32)
1063610563
#[inline]
@@ -10639,24 +10566,12 @@ pub unsafe fn vdot_lane_s32<const LANE: i32>(a: int32x2_t, b: int8x8_t, c: int8x
1063910566
#[rustc_legacy_const_generics(3)]
1064010567
pub unsafe fn vdot_laneq_s32<const LANE: i32>(a: int32x2_t, b: int8x8_t, c: int8x16_t) -> int32x2_t {
1064110568
static_assert_uimm_bits!(LANE, 2);
10642-
let c: int8x8_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10643-
vdot_s32(a, b, c)
10644-
}
10645-
10646-
/// Dot product arithmetic
10647-
///
10648-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdotq_lane_s32)
10649-
#[inline]
10650-
#[target_feature(enable = "neon,dotprod")]
10651-
#[cfg_attr(test, assert_instr(sdot, LANE = 0))]
10652-
#[rustc_legacy_const_generics(3)]
10653-
pub unsafe fn vdotq_lane_s32<const LANE: i32>(a: int32x4_t, b: int8x16_t, c: int8x8_t) -> int32x4_t {
10654-
static_assert_uimm_bits!(LANE, 1);
10655-
let c: int8x16_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10656-
vdotq_s32(a, b, c)
10569+
let c: int32x4_t = transmute(c);
10570+
let c: int32x2_t = simd_shuffle!(c, c, [LANE as u32, LANE as u32]);
10571+
vdot_s32(a, b, transmute(c))
1065710572
}
1065810573

10659-
/// Dot product arithmetic
10574+
/// Dot product arithmetic (indexed)
1066010575
///
1066110576
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdotq_laneq_s32)
1066210577
#[inline]
@@ -10665,24 +10580,12 @@ pub unsafe fn vdotq_lane_s32<const LANE: i32>(a: int32x4_t, b: int8x16_t, c: int
1066510580
#[rustc_legacy_const_generics(3)]
1066610581
pub unsafe fn vdotq_laneq_s32<const LANE: i32>(a: int32x4_t, b: int8x16_t, c: int8x16_t) -> int32x4_t {
1066710582
static_assert_uimm_bits!(LANE, 2);
10668-
let c: int8x16_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10669-
vdotq_s32(a, b, c)
10670-
}
10671-
10672-
/// Dot product arithmetic
10673-
///
10674-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdot_lane_u32)
10675-
#[inline]
10676-
#[target_feature(enable = "neon,dotprod")]
10677-
#[cfg_attr(test, assert_instr(udot, LANE = 0))]
10678-
#[rustc_legacy_const_generics(3)]
10679-
pub unsafe fn vdot_lane_u32<const LANE: i32>(a: uint32x2_t, b: uint8x8_t, c: uint8x8_t) -> uint32x2_t {
10680-
static_assert_uimm_bits!(LANE, 1);
10681-
let c: uint8x8_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10682-
vdot_u32(a, b, c)
10583+
let c: int32x4_t = transmute(c);
10584+
let c: int32x4_t = simd_shuffle!(c, c, [LANE as u32, LANE as u32, LANE as u32, LANE as u32]);
10585+
vdotq_s32(a, b, transmute(c))
1068310586
}
1068410587

10685-
/// Dot product arithmetic
10588+
/// Dot product arithmetic (indexed)
1068610589
///
1068710590
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdot_laneq_u32)
1068810591
#[inline]
@@ -10691,24 +10594,12 @@ pub unsafe fn vdot_lane_u32<const LANE: i32>(a: uint32x2_t, b: uint8x8_t, c: uin
1069110594
#[rustc_legacy_const_generics(3)]
1069210595
pub unsafe fn vdot_laneq_u32<const LANE: i32>(a: uint32x2_t, b: uint8x8_t, c: uint8x16_t) -> uint32x2_t {
1069310596
static_assert_uimm_bits!(LANE, 2);
10694-
let c: uint8x8_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10695-
vdot_u32(a, b, c)
10696-
}
10697-
10698-
/// Dot product arithmetic
10699-
///
10700-
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdotq_lane_u32)
10701-
#[inline]
10702-
#[target_feature(enable = "neon,dotprod")]
10703-
#[cfg_attr(test, assert_instr(udot, LANE = 0))]
10704-
#[rustc_legacy_const_generics(3)]
10705-
pub unsafe fn vdotq_lane_u32<const LANE: i32>(a: uint32x4_t, b: uint8x16_t, c: uint8x8_t) -> uint32x4_t {
10706-
static_assert_uimm_bits!(LANE, 1);
10707-
let c: uint8x16_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10708-
vdotq_u32(a, b, c)
10597+
let c: uint32x4_t = transmute(c);
10598+
let c: uint32x2_t = simd_shuffle!(c, c, [LANE as u32, LANE as u32]);
10599+
vdot_u32(a, b, transmute(c))
1070910600
}
1071010601

10711-
/// Dot product arithmetic
10602+
/// Dot product arithmetic (indexed)
1071210603
///
1071310604
/// [Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vdotq_laneq_u32)
1071410605
#[inline]
@@ -10717,8 +10608,9 @@ pub unsafe fn vdotq_lane_u32<const LANE: i32>(a: uint32x4_t, b: uint8x16_t, c: u
1071710608
#[rustc_legacy_const_generics(3)]
1071810609
pub unsafe fn vdotq_laneq_u32<const LANE: i32>(a: uint32x4_t, b: uint8x16_t, c: uint8x16_t) -> uint32x4_t {
1071910610
static_assert_uimm_bits!(LANE, 2);
10720-
let c: uint8x16_t = simd_shuffle!(c, c, [4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3, 4 * LANE as u32, 4 * LANE as u32 + 1, 4 * LANE as u32 + 2, 4 * LANE as u32 + 3]);
10721-
vdotq_u32(a, b, c)
10611+
let c: uint32x4_t = transmute(c);
10612+
let c: uint32x4_t = simd_shuffle!(c, c, [LANE as u32, LANE as u32, LANE as u32, LANE as u32]);
10613+
vdotq_u32(a, b, transmute(c))
1072210614
}
1072310615

1072410616
/// Maximum (vector)
@@ -23759,122 +23651,42 @@ mod test {
2375923651
assert_eq!(r, e);
2376023652
}
2376123653

23762-
#[simd_test(enable = "neon,dotprod")]
23763-
unsafe fn test_vdot_s32() {
23764-
let a: i32x2 = i32x2::new(1, 2);
23765-
let b: i8x8 = i8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23766-
let c: i8x8 = i8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23767-
let e: i32x2 = i32x2::new(31, 176);
23768-
let r: i32x2 = transmute(vdot_s32(transmute(a), transmute(b), transmute(c)));
23769-
assert_eq!(r, e);
23770-
}
23771-
23772-
#[simd_test(enable = "neon,dotprod")]
23773-
unsafe fn test_vdotq_s32() {
23774-
let a: i32x4 = i32x4::new(1, 2, 1, 2);
23775-
let b: i8x16 = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23776-
let c: i8x16 = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23777-
let e: i32x4 = i32x4::new(31, 176, 31, 176);
23778-
let r: i32x4 = transmute(vdotq_s32(transmute(a), transmute(b), transmute(c)));
23779-
assert_eq!(r, e);
23780-
}
23781-
23782-
#[simd_test(enable = "neon,dotprod")]
23783-
unsafe fn test_vdot_u32() {
23784-
let a: u32x2 = u32x2::new(1, 2);
23785-
let b: u8x8 = u8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23786-
let c: u8x8 = u8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23787-
let e: u32x2 = u32x2::new(31, 176);
23788-
let r: u32x2 = transmute(vdot_u32(transmute(a), transmute(b), transmute(c)));
23789-
assert_eq!(r, e);
23790-
}
23791-
23792-
#[simd_test(enable = "neon,dotprod")]
23793-
unsafe fn test_vdotq_u32() {
23794-
let a: u32x4 = u32x4::new(1, 2, 1, 2);
23795-
let b: u8x16 = u8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23796-
let c: u8x16 = u8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23797-
let e: u32x4 = u32x4::new(31, 176, 31, 176);
23798-
let r: u32x4 = transmute(vdotq_u32(transmute(a), transmute(b), transmute(c)));
23799-
assert_eq!(r, e);
23800-
}
23801-
23802-
#[simd_test(enable = "neon,dotprod")]
23803-
unsafe fn test_vdot_lane_s32() {
23804-
let a: i32x2 = i32x2::new(1, 2);
23805-
let b: i8x8 = i8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23806-
let c: i8x8 = i8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23807-
let e: i32x2 = i32x2::new(31, 72);
23808-
let r: i32x2 = transmute(vdot_lane_s32::<0>(transmute(a), transmute(b), transmute(c)));
23809-
assert_eq!(r, e);
23810-
}
23811-
2381223654
#[simd_test(enable = "neon,dotprod")]
2381323655
unsafe fn test_vdot_laneq_s32() {
2381423656
let a: i32x2 = i32x2::new(1, 2);
23815-
let b: i8x8 = i8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23657+
let b: i8x8 = i8x8::new(-1, 2, 3, 4, 5, 6, 7, 8);
2381623658
let c: i8x16 = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23817-
let e: i32x2 = i32x2::new(31, 72);
23659+
let e: i32x2 = i32x2::new(29, 72);
2381823660
let r: i32x2 = transmute(vdot_laneq_s32::<0>(transmute(a), transmute(b), transmute(c)));
2381923661
assert_eq!(r, e);
2382023662
}
2382123663

23822-
#[simd_test(enable = "neon,dotprod")]
23823-
unsafe fn test_vdotq_lane_s32() {
23824-
let a: i32x4 = i32x4::new(1, 2, 1, 2);
23825-
let b: i8x16 = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23826-
let c: i8x8 = i8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23827-
let e: i32x4 = i32x4::new(31, 72, 31, 72);
23828-
let r: i32x4 = transmute(vdotq_lane_s32::<0>(transmute(a), transmute(b), transmute(c)));
23829-
assert_eq!(r, e);
23830-
}
23831-
2383223664
#[simd_test(enable = "neon,dotprod")]
2383323665
unsafe fn test_vdotq_laneq_s32() {
2383423666
let a: i32x4 = i32x4::new(1, 2, 1, 2);
23835-
let b: i8x16 = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23667+
let b: i8x16 = i8x16::new(-1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
2383623668
let c: i8x16 = i8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23837-
let e: i32x4 = i32x4::new(31, 72, 31, 72);
23669+
let e: i32x4 = i32x4::new(29, 72, 31, 72);
2383823670
let r: i32x4 = transmute(vdotq_laneq_s32::<0>(transmute(a), transmute(b), transmute(c)));
2383923671
assert_eq!(r, e);
2384023672
}
2384123673

23842-
#[simd_test(enable = "neon,dotprod")]
23843-
unsafe fn test_vdot_lane_u32() {
23844-
let a: u32x2 = u32x2::new(1, 2);
23845-
let b: u8x8 = u8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23846-
let c: u8x8 = u8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23847-
let e: u32x2 = u32x2::new(31, 72);
23848-
let r: u32x2 = transmute(vdot_lane_u32::<0>(transmute(a), transmute(b), transmute(c)));
23849-
assert_eq!(r, e);
23850-
}
23851-
2385223674
#[simd_test(enable = "neon,dotprod")]
2385323675
unsafe fn test_vdot_laneq_u32() {
2385423676
let a: u32x2 = u32x2::new(1, 2);
23855-
let b: u8x8 = u8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23677+
let b: u8x8 = u8x8::new(255, 2, 3, 4, 5, 6, 7, 8);
2385623678
let c: u8x16 = u8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23857-
let e: u32x2 = u32x2::new(31, 72);
23679+
let e: u32x2 = u32x2::new(285, 72);
2385823680
let r: u32x2 = transmute(vdot_laneq_u32::<0>(transmute(a), transmute(b), transmute(c)));
2385923681
assert_eq!(r, e);
2386023682
}
2386123683

23862-
#[simd_test(enable = "neon,dotprod")]
23863-
unsafe fn test_vdotq_lane_u32() {
23864-
let a: u32x4 = u32x4::new(1, 2, 1, 2);
23865-
let b: u8x16 = u8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23866-
let c: u8x8 = u8x8::new(1, 2, 3, 4, 5, 6, 7, 8);
23867-
let e: u32x4 = u32x4::new(31, 72, 31, 72);
23868-
let r: u32x4 = transmute(vdotq_lane_u32::<0>(transmute(a), transmute(b), transmute(c)));
23869-
assert_eq!(r, e);
23870-
}
23871-
2387223684
#[simd_test(enable = "neon,dotprod")]
2387323685
unsafe fn test_vdotq_laneq_u32() {
2387423686
let a: u32x4 = u32x4::new(1, 2, 1, 2);
23875-
let b: u8x16 = u8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23687+
let b: u8x16 = u8x16::new(255, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
2387623688
let c: u8x16 = u8x16::new(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8);
23877-
let e: u32x4 = u32x4::new(31, 72, 31, 72);
23689+
let e: u32x4 = u32x4::new(285, 72, 31, 72);
2387823690
let r: u32x4 = transmute(vdotq_laneq_u32::<0>(transmute(a), transmute(b), transmute(c)));
2387923691
assert_eq!(r, e);
2388023692
}

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