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Reimplement _mm256_movemask_ps and _mm256_movemask_pd without LLVM intrinsics

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Eduardo Sánchez Muñoz 2023-10-04 20:37:54 +02:00 • committed by Amanieu d'Antras
parent b886dade6f
commit 7808ffa5af
1 changed files with 2 additions and 6 deletions
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8
library/stdarch/crates/core_arch/src/x86/avx.rs
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@ -2066,7 +2066,7 @@ pub unsafe fn _mm_testnzc_ps(a: __m128, b: __m128) -> i32 {
#[cfg_attr(test, assert_instr(vmovmskpd))]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_movemask_pd(a: __m256d) -> i32 {
movmskpd256(a)
simd_bitmask::<u64x4, u8>(transmute(a)).into()
}
/// Sets each bit of the returned mask based on the most significant bit of the
@ -2079,7 +2079,7 @@ pub unsafe fn _mm256_movemask_pd(a: __m256d) -> i32 {
#[cfg_attr(test, assert_instr(vmovmskps))]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_movemask_ps(a: __m256) -> i32 {
movmskps256(a)
simd_bitmask::<u32x8, u8>(transmute(a)).into()
}
/// Returns vector of type __m256d with all elements set to zero.
@ -3028,10 +3028,6 @@ extern "C" {
fn vtestcps(a: __m128, b: __m128) -> i32;
#[link_name = "llvm.x86.avx.vtestnzc.ps"]
fn vtestnzcps(a: __m128, b: __m128) -> i32;
#[link_name = "llvm.x86.avx.movmsk.pd.256"]
fn movmskpd256(a: __m256d) -> i32;
#[link_name = "llvm.x86.avx.movmsk.ps.256"]
fn movmskps256(a: __m256) -> i32;
#[link_name = "llvm.x86.avx.min.ps.256"]
fn vminps(a: __m256, b: __m256) -> __m256;
#[link_name = "llvm.x86.avx.max.ps.256"]