/// xor
pub(crate) fn simd_xor<T>(x: T, y: T) -> T;
+ /// getelementptr (without inbounds)
+ #[cfg(not(bootstrap))]
+ pub(crate) fn simd_arith_offset<T, U>(ptrs: T, offsets: U) -> T;
+
/// fptoui/fptosi/uitofp/sitofp
/// casting floats to integers is truncating, so it is safe to convert values like e.g. 1.5
/// but the truncated value must fit in the target type or the result is poison.
//! Private implementation details of public gather/scatter APIs.
+#[cfg(not(bootstrap))]
+use crate::simd::intrinsics;
use crate::simd::{LaneCount, Simd, SupportedLaneCount};
+#[cfg(bootstrap)]
use core::mem;
/// A vector of *const T.
#[inline]
#[must_use]
pub fn wrapping_add(self, addend: Simd<usize, LANES>) -> Self {
+ #[cfg(bootstrap)]
// Safety: converting pointers to usize and vice-versa is safe
// (even if using that pointer is not)
unsafe {
let x: Simd<usize, LANES> = mem::transmute_copy(&self);
mem::transmute_copy(&{ x + (addend * Simd::splat(mem::size_of::<T>())) })
}
+ #[cfg(not(bootstrap))]
+ // Safety: this intrinsic doesn't have a precondition
+ unsafe { intrinsics::simd_arith_offset(self, addend) }
}
}
#[inline]
#[must_use]
pub fn wrapping_add(self, addend: Simd<usize, LANES>) -> Self {
+ #[cfg(bootstrap)]
// Safety: converting pointers to usize and vice-versa is safe
// (even if using that pointer is not)
unsafe {
let x: Simd<usize, LANES> = mem::transmute_copy(&self);
mem::transmute_copy(&{ x + (addend * Simd::splat(mem::size_of::<T>())) })
}
+ #[cfg(not(bootstrap))]
+ // Safety: this intrinsic doesn't have a precondition
+ unsafe { intrinsics::simd_arith_offset(self, addend) }
}
}