1 files changed, 122 insertions, 0 deletions
diff --git a/third_party/rust/packed_simd/src/codegen/llvm.rs b/third_party/rust/packed_simd/src/codegen/llvm.rs
new file mode 100644
index 0000000000..bb482fac66
--- /dev/null
+++ b/third_party/rust/packed_simd/src/codegen/llvm.rs
@@ -0,0 +1,122 @@
+//! LLVM's platform intrinsics
+#![allow(dead_code)]
+
+use crate::sealed::Shuffle;
+#[allow(unused_imports)] // FIXME: spurious warning?
+use crate::sealed::Simd;
+
+extern "platform-intrinsic" {
+    fn simd_shuffle<T, I, U>(x: T, y: T, idx: I) -> U;
+}
+
+#[allow(clippy::missing_safety_doc)]
+#[inline]
+pub unsafe fn __shuffle_vector2<const IDX: [u32; 2], T, U>(x: T, y: T) -> U
+where
+    T: Simd,
+    <T as Simd>::Element: Shuffle<[u32; 2], Output = U>,
+{
+    simd_shuffle(x, y, IDX)
+}
+
+#[allow(clippy::missing_safety_doc)]
+#[inline]
+pub unsafe fn __shuffle_vector4<const IDX: [u32; 4], T, U>(x: T, y: T) -> U
+where
+    T: Simd,
+    <T as Simd>::Element: Shuffle<[u32; 4], Output = U>,
+{
+    simd_shuffle(x, y, IDX)
+}
+
+#[allow(clippy::missing_safety_doc)]
+#[inline]
+pub unsafe fn __shuffle_vector8<const IDX: [u32; 8], T, U>(x: T, y: T) -> U
+where
+    T: Simd,
+    <T as Simd>::Element: Shuffle<[u32; 8], Output = U>,
+{
+    simd_shuffle(x, y, IDX)
+}
+
+#[allow(clippy::missing_safety_doc)]
+#[inline]
+pub unsafe fn __shuffle_vector16<const IDX: [u32; 16], T, U>(x: T, y: T) -> U
+where
+    T: Simd,
+    <T as Simd>::Element: Shuffle<[u32; 16], Output = U>,
+{
+    simd_shuffle(x, y, IDX)
+}
+
+#[allow(clippy::missing_safety_doc)]
+#[inline]
+pub unsafe fn __shuffle_vector32<const IDX: [u32; 32], T, U>(x: T, y: T) -> U
+where
+    T: Simd,
+    <T as Simd>::Element: Shuffle<[u32; 32], Output = U>,
+{
+    simd_shuffle(x, y, IDX)
+}
+
+#[allow(clippy::missing_safety_doc)]
+#[inline]
+pub unsafe fn __shuffle_vector64<const IDX: [u32; 64], T, U>(x: T, y: T) -> U
+where
+    T: Simd,
+    <T as Simd>::Element: Shuffle<[u32; 64], Output = U>,
+{
+    simd_shuffle(x, y, IDX)
+}
+
+extern "platform-intrinsic" {
+    pub(crate) fn simd_eq<T, U>(x: T, y: T) -> U;
+    pub(crate) fn simd_ne<T, U>(x: T, y: T) -> U;
+    pub(crate) fn simd_lt<T, U>(x: T, y: T) -> U;
+    pub(crate) fn simd_le<T, U>(x: T, y: T) -> U;
+    pub(crate) fn simd_gt<T, U>(x: T, y: T) -> U;
+    pub(crate) fn simd_ge<T, U>(x: T, y: T) -> U;
+
+    pub(crate) fn simd_insert<T, U>(x: T, idx: u32, val: U) -> T;
+    pub(crate) fn simd_extract<T, U>(x: T, idx: u32) -> U;
+
+    pub(crate) fn simd_cast<T, U>(x: T) -> U;
+
+    pub(crate) fn simd_add<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_sub<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_mul<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_div<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_rem<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_shl<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_shr<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_and<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_or<T>(x: T, y: T) -> T;
+    pub(crate) fn simd_xor<T>(x: T, y: T) -> T;
+
+    pub(crate) fn simd_reduce_add_unordered<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_mul_unordered<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_add_ordered<T, U>(x: T, acc: U) -> U;
+    pub(crate) fn simd_reduce_mul_ordered<T, U>(x: T, acc: U) -> U;
+    pub(crate) fn simd_reduce_min<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_max<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_min_nanless<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_max_nanless<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_and<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_or<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_xor<T, U>(x: T) -> U;
+    pub(crate) fn simd_reduce_all<T>(x: T) -> bool;
+    pub(crate) fn simd_reduce_any<T>(x: T) -> bool;
+
+    pub(crate) fn simd_select<M, T>(m: M, a: T, b: T) -> T;
+
+    pub(crate) fn simd_fmin<T>(a: T, b: T) -> T;
+    pub(crate) fn simd_fmax<T>(a: T, b: T) -> T;
+
+    pub(crate) fn simd_fsqrt<T>(a: T) -> T;
+    pub(crate) fn simd_fma<T>(a: T, b: T, c: T) -> T;
+
+    pub(crate) fn simd_gather<T, P, M>(value: T, pointers: P, mask: M) -> T;
+    pub(crate) fn simd_scatter<T, P, M>(value: T, pointers: P, mask: M);
+
+    pub(crate) fn simd_bitmask<T, U>(value: T) -> U;
+}