PCMPEQQ - Packed CoMPare EQual Qword

PCMPEQQ xmm1, xmm2/m128    (S4.1
__m128i _mm_cmpeq_epi64(__m128i a, __m128i b)

For each QWORD, if (1) == (2) set 1, else set 0, to all bits in the corresponding QWORD of (3).
VPCMPEQQ xmm1, xmm2, xmm3/m128    (V1
__m128i _mm_cmpeq_epi64(__m128i a, __m128i b)

For each QWORD, if (1) == (2) set 1, else set 0, to all bits in the corresponding QWORD of (3).
VPCMPEQQ ymm1, ymm2, ymm3/m256    (V2
__m256i _mm256_cmpeq_epi64(__m256i a, __m256i b)

For each QWORD, if (1) == (2) set 1, else set 0, to all bits in the corresponding QWORD of (3).
VPCMPEQQ k1{k2}, xmm2, xmm3/m128/m64bcst    (V5+VL
__mmask8 _mm_cmpeq_epi64_mask(__m128i a, __m128i b)
__mmask8 _mm_mask_cmpeq_epi64_mask(__mmask8 k2, __m128i a, __m128i b)

For each QWORD, if (1) == (2) set 1, else set 0, to the corresponding bit of (3).
If k2 bit is 0, the comparison is not done and the corresponding bit of (3) is set to zero. Upper bits of (3) are zero cleared.
VPCMPEQQ k1{k2}, ymm2, ymm3/m256/m64bcst    (V5+VL
__mmask8 _mm256_cmpeq_epi64_mask(__m256i a, __m256i b)
__mmask8 _mm256_mask_cmpeq_epi64_mask(__mmask8 k2, __m256i a, __m256i b)

For each QWORD, if (1) == (2) set 1, else set 0, to the corresponding bit of (3).
If k2 bit is 0, the comparison is not done and the corresponding bit of (3) is set to zero. Upper bits of (3) are zero cleared.
VPCMPEQQ k1{k2}, zmm2, zmm3/m512/m64bcst    (V5
__mmask8 _mm512_cmpeq_epi64_mask(__m512i a, __m512i b)
__mmask8 _mm512_mask_cmpeq_epi64_mask(__mmask8 k2, __m512i a, __m512i b)

For each QWORD, if (1) == (2) set 1, else set 0, to the corresponding bit of (3).
If k2 bit is 0, the comparison is not done and the corresponding bit of (3) is set to zero. Upper bits of (3) are zero cleared.
x86/x64 SIMD Instruction List  Feedback