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Merge pull request #2010 from folkertdev/powerpc-vnmsub-llvm-22

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powerpc: implement `vnmsubfp` using `intrinsics::simd`
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Amanieu d'Antras 2026-01-31 19:43:04 +00:00 • committed by GitHub
commit c1196d4333
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1 changed files with 4 additions and 6 deletions
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10
library/stdarch/crates/core_arch/src/powerpc/altivec.rs
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@ -177,8 +177,6 @@ unsafe extern "C" {
b: vector_signed_short,
c: vector_signed_int,
) -> vector_signed_int;
#[link_name = "llvm.ppc.altivec.vnmsubfp"]
fn vnmsubfp(a: vector_float, b: vector_float, c: vector_float) -> vector_float;
#[link_name = "llvm.ppc.altivec.vsum2sws"]
fn vsum2sws(a: vector_signed_int, b: vector_signed_int) -> vector_signed_int;
#[link_name = "llvm.ppc.altivec.vsum4ubs"]
@ -1929,9 +1927,9 @@ mod sealed {
#[inline]
#[target_feature(enable = "altivec")]
#[cfg_attr(test, assert_instr(vnmsubfp))]
unsafe fn vec_vnmsubfp(a: vector_float, b: vector_float, c: vector_float) -> vector_float {
vnmsubfp(a, b, c)
#[cfg_attr(test, assert_instr(xvnmsubasp))]
pub unsafe fn vec_vnmsubfp(a: vector_float, b: vector_float, c: vector_float) -> vector_float {
simd_neg(simd_fma(a, b, simd_neg(c)))
}
#[inline]
@ -4329,7 +4327,7 @@ pub unsafe fn vec_madd(a: vector_float, b: vector_float, c: vector_float) -> vec
#[target_feature(enable = "altivec")]
#[unstable(feature = "stdarch_powerpc", issue = "111145")]
pub unsafe fn vec_nmsub(a: vector_float, b: vector_float, c: vector_float) -> vector_float {
vnmsubfp(a, b, c)
sealed::vec_vnmsubfp(a, b, c)
}
/// Vector Select