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New posts in avx
Is it useful to use VZEROUPPER if your program+libraries contain no SSE instructions?
Nov 03, 2022
performance
assembly
x86
avx
micro-optimization
Is it okay to mix legacy SSE encoded instructions and VEX encoded ones in the same code path?
Nov 08, 2014
assembly
x86
sse
avx
intel
Is it possible to use SIMD instructions in Rust?
Feb 07, 2022
rust
simd
avx
avx2
When using a mask register with AVX-512 load and stores, is a fault raised for invalid accesses to masked out elements?
Mar 31, 2022
x86
avx
avx512
Is vxorps-zeroing on AMD Jaguar/Bulldozer/Zen faster with xmm registers than ymm?
Jan 06, 2022
assembly
x86
avx
micro-optimization
amd-processor
what's the difference between _mm256_lddqu_si256 and _mm256_loadu_si256
Feb 04, 2022
x86
simd
intrinsics
avx
micro-optimization
Using AVX with GCC - avxintrin.h missing
Mar 08, 2022
c++
gcc
avx
AVX/SSE version of xorshift128+
Apr 12, 2022
c
performance
sse
avx
L1 memory bandwidth: 50% drop in efficiency using addresses which differ by 4096+64 bytes
May 02, 2022
c
caching
memory
x86
avx
is there an inverse instruction to the movemask instruction in intel avx2?
Dec 05, 2021
x86
intrinsics
avx
avx2
icc
Bitwise xor of two 256-bit integers
Nov 17, 2022
sse
simd
avx
Fastest Implementation of Exponential Function Using AVX
Sep 14, 2019
x86
simd
avx
exponential
avx2
Get sum of values stored in __m256d with SSE/AVX
Feb 09, 2022
c++
optimization
sse
avx
avx2
Why is GCC's AVX slower while LLVM's faster?
Mar 28, 2022
gcc
assembly
llvm
julia
avx
What's the fastest way to perform an arbitrary 128/256/512 bit permutation using SIMD instructions?
Mar 07, 2021
c++
assembly
sse
avx
avx2
8 bit shift operation in AVX2 with shifting in zeros
Jan 20, 2018
c
sse
simd
avx
avx2
Disabling AVX2 in CPU for testing purposes
Sep 16, 2022
testing
x86
avx
instruction-set
avx2
Does the Linux kernel have its own SSE/AVX context?
Oct 30, 2021
linux-kernel
sse
kernel-module
avx
Fastest way to expand bits in a field to all (overlapping + adjacent) set bits in a mask?
Nov 19, 2022
c
assembly
x86
sse
avx
What's the difference between vextracti128 and vextractf128?
Aug 24, 2022
x86
simd
avx
avx2
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