//! Internal `#[repr(simd)]` types

#![allow(non_camel_case_types)]

macro_rules! simd_ty {
    ($id:ident [$ety:ident]: $($elem_ty:ident),* | $($elem_name:ident),*) => {
        #[repr(simd)]
        #[derive(Copy, Clone, Debug, PartialEq)]
        pub(crate) struct $id($(pub $elem_ty),*);

        #[allow(clippy::use_self)]
        impl $id {
            #[inline(always)]
            pub(crate) const fn new($($elem_name: $elem_ty),*) -> Self {
                $id($($elem_name),*)
            }
            // FIXME: Workaround rust@60637
            #[inline(always)]
            pub(crate) const fn splat(value: $ety) -> Self {
                $id($({
                    #[allow(non_camel_case_types, dead_code)]
                    struct $elem_name;
                    value
                }),*)
            }

            // FIXME: Workaround rust@60637
            #[inline(always)]
            pub(crate) fn extract(self, index: usize) -> $ety {
                unsafe {
                    crate::core_arch::simd_llvm::simd_extract(self, index as u32)
                }
            }
        }
    }
}

macro_rules! simd_m_ty {
    ($id:ident [$ety:ident]: $($elem_ty:ident),* | $($elem_name:ident),*) => {
        #[repr(simd)]
        #[derive(Copy, Clone, Debug, PartialEq)]
        pub(crate) struct $id($(pub $elem_ty),*);

        #[allow(clippy::use_self)]
        impl $id {
            #[inline(always)]
            const fn bool_to_internal(x: bool) -> $ety {
                [0 as $ety, !(0 as $ety)][x as usize]
            }

            #[inline(always)]
            pub(crate) const fn new($($elem_name: bool),*) -> Self {
                $id($(Self::bool_to_internal($elem_name)),*)
            }

            // FIXME: Workaround rust@60637
            #[inline(always)]
            pub(crate) const fn splat(value: bool) -> Self {
                $id($({
                    #[allow(non_camel_case_types, dead_code)]
                    struct $elem_name;
                    Self::bool_to_internal(value)
                }),*)
            }

            // FIXME: Workaround rust@60637
            #[inline(always)]
            pub(crate) fn extract(self, index: usize) -> bool {
                let r: $ety = unsafe {
                    crate::core_arch::simd_llvm::simd_extract(self, index as u32)
                };
                r != 0
            }
        }
    }
}

// 16-bit wide types:

simd_ty!(u8x2[u8]: u8, u8 | x0, x1);
simd_ty!(i8x2[i8]: i8, i8 | x0, x1);

// 32-bit wide types:

simd_ty!(u8x4[u8]: u8, u8, u8, u8 | x0, x1, x2, x3);
simd_ty!(u16x2[u16]: u16, u16 | x0, x1);

simd_ty!(i8x4[i8]: i8, i8, i8, i8 | x0, x1, x2, x3);
simd_ty!(i16x2[i16]: i16, i16 | x0, x1);

// 64-bit wide types:

simd_ty!(
    u8x8[u8]: u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_ty!(u16x4[u16]: u16, u16, u16, u16 | x0, x1, x2, x3);
simd_ty!(u32x2[u32]: u32, u32 | x0, x1);
simd_ty!(u64x1[u64]: u64 | x1);

simd_ty!(
    i8x8[i8]: i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_ty!(i16x4[i16]: i16, i16, i16, i16 | x0, x1, x2, x3);
simd_ty!(i32x2[i32]: i32, i32 | x0, x1);
simd_ty!(i64x1[i64]: i64 | x1);

simd_ty!(f32x2[f32]: f32, f32 | x0, x1);
simd_ty!(f64x1[f64]: f64 | x1);

// 128-bit wide types:

simd_ty!(
    u8x16[u8]: u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);
simd_ty!(
    u16x8[u16]: u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_ty!(u32x4[u32]: u32, u32, u32, u32 | x0, x1, x2, x3);
simd_ty!(u64x2[u64]: u64, u64 | x0, x1);

simd_ty!(
    i8x16[i8]: i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);
simd_ty!(
    i16x8[i16]: i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_ty!(i32x4[i32]: i32, i32, i32, i32 | x0, x1, x2, x3);
simd_ty!(i64x2[i64]: i64, i64 | x0, x1);

simd_ty!(f32x4[f32]: f32, f32, f32, f32 | x0, x1, x2, x3);
simd_ty!(f64x2[f64]: f64, f64 | x0, x1);
simd_ty!(f64x4[f64]: f64, f64, f64, f64 | x0, x1, x2, x3);

simd_m_ty!(
    m8x16[i8]: i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);
simd_m_ty!(
    m16x8[i16]: i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_m_ty!(m32x4[i32]: i32, i32, i32, i32 | x0, x1, x2, x3);
simd_m_ty!(m64x2[i64]: i64, i64 | x0, x1);

// 256-bit wide types:

simd_ty!(
    u8x32[u8]: u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15,
    x16,
    x17,
    x18,
    x19,
    x20,
    x21,
    x22,
    x23,
    x24,
    x25,
    x26,
    x27,
    x28,
    x29,
    x30,
    x31
);
simd_ty!(
    u16x16[u16]: u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);
simd_ty!(
    u32x8[u32]: u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_ty!(u64x4[u64]: u64, u64, u64, u64 | x0, x1, x2, x3);

simd_ty!(
    i8x32[i8]: i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15,
    x16,
    x17,
    x18,
    x19,
    x20,
    x21,
    x22,
    x23,
    x24,
    x25,
    x26,
    x27,
    x28,
    x29,
    x30,
    x31
);
simd_ty!(
    i16x16[i16]: i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);
simd_ty!(
    i32x8[i32]: i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);
simd_ty!(i64x4[i64]: i64, i64, i64, i64 | x0, x1, x2, x3);

simd_ty!(
    f32x8[f32]: f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);

// 512-bit wide types:

simd_ty!(
    i8x64[i8]: i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8,
    i8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15,
    x16,
    x17,
    x18,
    x19,
    x20,
    x21,
    x22,
    x23,
    x24,
    x25,
    x26,
    x27,
    x28,
    x29,
    x30,
    x31,
    x32,
    x33,
    x34,
    x35,
    x36,
    x37,
    x38,
    x39,
    x40,
    x41,
    x42,
    x43,
    x44,
    x45,
    x46,
    x47,
    x48,
    x49,
    x50,
    x51,
    x52,
    x53,
    x54,
    x55,
    x56,
    x57,
    x58,
    x59,
    x60,
    x61,
    x62,
    x63
);

simd_ty!(
    u8x64[u8]: u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8,
    u8 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15,
    x16,
    x17,
    x18,
    x19,
    x20,
    x21,
    x22,
    x23,
    x24,
    x25,
    x26,
    x27,
    x28,
    x29,
    x30,
    x31,
    x32,
    x33,
    x34,
    x35,
    x36,
    x37,
    x38,
    x39,
    x40,
    x41,
    x42,
    x43,
    x44,
    x45,
    x46,
    x47,
    x48,
    x49,
    x50,
    x51,
    x52,
    x53,
    x54,
    x55,
    x56,
    x57,
    x58,
    x59,
    x60,
    x61,
    x62,
    x63
);

simd_ty!(
    i16x32[i16]: i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16,
    i16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15,
    x16,
    x17,
    x18,
    x19,
    x20,
    x21,
    x22,
    x23,
    x24,
    x25,
    x26,
    x27,
    x28,
    x29,
    x30,
    x31
);

simd_ty!(
    u16x32[u16]: u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16,
    u16 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15,
    x16,
    x17,
    x18,
    x19,
    x20,
    x21,
    x22,
    x23,
    x24,
    x25,
    x26,
    x27,
    x28,
    x29,
    x30,
    x31
);

simd_ty!(
    i32x16[i32]: i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32,
    i32 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);

simd_ty!(
    u32x16[u32]: u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32,
    u32 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);

simd_ty!(
    f32x16[f32]: f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32,
    f32 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7,
    x8,
    x9,
    x10,
    x11,
    x12,
    x13,
    x14,
    x15
);

simd_ty!(
    i64x8[i64]: i64,
    i64,
    i64,
    i64,
    i64,
    i64,
    i64,
    i64 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);

simd_ty!(
    u64x8[u64]: u64,
    u64,
    u64,
    u64,
    u64,
    u64,
    u64,
    u64 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);

simd_ty!(
    f64x8[f64]: f64,
    f64,
    f64,
    f64,
    f64,
    f64,
    f64,
    f64 | x0,
    x1,
    x2,
    x3,
    x4,
    x5,
    x6,
    x7
);