1 files changed, 51 insertions, 0 deletions
diff --git a/library/portable-simd/crates/core_simd/src/vector/ptr.rs b/library/portable-simd/crates/core_simd/src/vector/ptr.rs
new file mode 100644
index 000000000..fa756344d
--- /dev/null
+++ b/library/portable-simd/crates/core_simd/src/vector/ptr.rs
@@ -0,0 +1,51 @@
+//! Private implementation details of public gather/scatter APIs.
+use crate::simd::intrinsics;
+use crate::simd::{LaneCount, Simd, SupportedLaneCount};
+
+/// A vector of *const T.
+#[derive(Debug, Copy, Clone)]
+#[repr(simd)]
+pub(crate) struct SimdConstPtr<T, const LANES: usize>([*const T; LANES]);
+
+impl<T, const LANES: usize> SimdConstPtr<T, LANES>
+where
+    LaneCount<LANES>: SupportedLaneCount,
+    T: Sized,
+{
+    #[inline]
+    #[must_use]
+    pub fn splat(ptr: *const T) -> Self {
+        Self([ptr; LANES])
+    }
+
+    #[inline]
+    #[must_use]
+    pub fn wrapping_add(self, addend: Simd<usize, LANES>) -> Self {
+        // Safety: this intrinsic doesn't have a precondition
+        unsafe { intrinsics::simd_arith_offset(self, addend) }
+    }
+}
+
+/// A vector of *mut T. Be very careful around potential aliasing.
+#[derive(Debug, Copy, Clone)]
+#[repr(simd)]
+pub(crate) struct SimdMutPtr<T, const LANES: usize>([*mut T; LANES]);
+
+impl<T, const LANES: usize> SimdMutPtr<T, LANES>
+where
+    LaneCount<LANES>: SupportedLaneCount,
+    T: Sized,
+{
+    #[inline]
+    #[must_use]
+    pub fn splat(ptr: *mut T) -> Self {
+        Self([ptr; LANES])
+    }
+
+    #[inline]
+    #[must_use]
+    pub fn wrapping_add(self, addend: Simd<usize, LANES>) -> Self {
+        // Safety: this intrinsic doesn't have a precondition
+        unsafe { intrinsics::simd_arith_offset(self, addend) }
+    }
+}