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Add vec_subc

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Luca Barbato 2024-02-16 10:33:01 +00:00 • committed by Amanieu d'Antras
parent e5d393dce8
commit f866a61df6
1 changed files with 34 additions and 0 deletions
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34
library/stdarch/crates/core_arch/src/powerpc/altivec.rs
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@ -213,6 +213,9 @@ extern "C" {
#[link_name = "llvm.ppc.altivec.vsubuws"]
fn vsubuws(a: vector_unsigned_int, b: vector_unsigned_int) -> vector_unsigned_int;
#[link_name = "llvm.ppc.altivec.vsubcuw"]
fn vsubcuw(a: vector_unsigned_int, b: vector_unsigned_int) -> vector_unsigned_int;
#[link_name = "llvm.ppc.altivec.vaddcuw"]
fn vaddcuw(a: vector_unsigned_int, b: vector_unsigned_int) -> vector_unsigned_int;
@ -1686,6 +1689,17 @@ mod sealed {
impl_vec_trait! { [VectorSub vec_sub] ~(simd_sub, simd_sub, simd_sub, simd_sub, simd_sub, simd_sub) }
impl_vec_trait! { [VectorSub vec_sub] simd_sub(vector_float, vector_float) -> vector_float }
test_impl! { vec_vsubcuw (a: vector_unsigned_int, b: vector_unsigned_int) -> vector_unsigned_int [vsubcuw, vsubcuw] }
#[unstable(feature = "stdarch_powerpc", issue = "111145")]
pub trait VectorSubc<Other> {
type Result;
unsafe fn vec_subc(self, b: Other) -> Self::Result;
}
impl_vec_trait! {[VectorSubc vec_subc]+ vec_vsubcuw(vector_unsigned_int, vector_unsigned_int) -> vector_unsigned_int }
impl_vec_trait! {[VectorSubc vec_subc]+ vec_vsubcuw(vector_signed_int, vector_signed_int) -> vector_signed_int }
test_impl! { vec_vminsb (a: vector_signed_char, b: vector_signed_char) -> vector_signed_char [vminsb, vminsb] }
test_impl! { vec_vminsh (a: vector_signed_short, b: vector_signed_short) -> vector_signed_short [vminsh, vminsh] }
test_impl! { vec_vminsw (a: vector_signed_int, b: vector_signed_int) -> vector_signed_int [vminsw, vminsw] }
@ -3872,6 +3886,26 @@ where
a.vec_sub(b)
}
/// Vector Subtract Carryout
///
/// ## Purpose
/// Returns a vector wherein each element contains the carry produced by subtracting the
/// corresponding elements of the two source vectors.
///
/// ## Result value
/// The value of each element of r is the complement of the carry produced by subtract- ing the
/// value of the corresponding element of b from the value of the corresponding element of a. The
/// value is 0 if a borrow occurred, or 1 if no borrow occurred.
#[inline]
#[target_feature(enable = "altivec")]
#[unstable(feature = "stdarch_powerpc", issue = "111145")]
pub unsafe fn vec_subc<T, U>(a: T, b: U) -> <T as sealed::VectorSubc<U>>::Result
where
T: sealed::VectorSubc<U>,
{
a.vec_subc(b)
}
/// Vector subs.
#[inline]
#[target_feature(enable = "altivec")]