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Use simd_bitmask intrinsic in a couple of places #1331

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Sep 5, 2022
Merged

Use simd_bitmask intrinsic in a couple of places #1331

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4 changes: 1 addition & 3 deletions crates/core_arch/src/x86/avx2.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2001,7 +2001,7 @@ pub unsafe fn _mm256_min_epu8(a: __m256i, b: __m256i) -> __m256i {
#[cfg_attr(test, assert_instr(vpmovmskb))]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_movemask_epi8(a: __m256i) -> i32 {
pmovmskb(a.as_i8x32())
simd_bitmask::<_, u32>(a.as_i8x32()) as i32
}

/// Computes the sum of absolute differences (SADs) of quadruplets of unsigned
Expand Down Expand Up @@ -3642,8 +3642,6 @@ extern "C" {
fn pminud(a: u32x8, b: u32x8) -> u32x8;
#[link_name = "llvm.x86.avx2.pminu.b"]
fn pminub(a: u8x32, b: u8x32) -> u8x32;
#[link_name = "llvm.x86.avx2.pmovmskb"]
fn pmovmskb(a: i8x32) -> i32;
#[link_name = "llvm.x86.avx2.mpsadbw"]
fn mpsadbw(a: u8x32, b: u8x32, imm8: i32) -> u16x16;
#[link_name = "llvm.x86.avx2.pmulhu.w"]
Expand Down
4 changes: 1 addition & 3 deletions crates/core_arch/src/x86/sse2.rs
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Expand Up @@ -1378,7 +1378,7 @@ pub unsafe fn _mm_insert_epi16<const IMM8: i32>(a: __m128i, i: i32) -> __m128i {
#[cfg_attr(test, assert_instr(pmovmskb))]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm_movemask_epi8(a: __m128i) -> i32 {
pmovmskb(a.as_i8x16())
simd_bitmask::<_, u16>(a.as_i8x16()) as u32 as i32
}

/// Shuffles 32-bit integers in `a` using the control in `IMM8`.
Expand Down Expand Up @@ -2856,8 +2856,6 @@ extern "C" {
fn packssdw(a: i32x4, b: i32x4) -> i16x8;
#[link_name = "llvm.x86.sse2.packuswb.128"]
fn packuswb(a: i16x8, b: i16x8) -> u8x16;
#[link_name = "llvm.x86.sse2.pmovmskb.128"]
fn pmovmskb(a: i8x16) -> i32;
#[link_name = "llvm.x86.sse2.max.sd"]
fn maxsd(a: __m128d, b: __m128d) -> __m128d;
#[link_name = "llvm.x86.sse2.max.pd"]
Expand Down