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New posts in avx
How are AVX registers handled by the common calling conventions?
Aug 16, 2022
windows
linux
calling-convention
avx
Potential bug in Visual Studio C compiler or in Intel Intrinsics' AVX2 "_mm256_set_epi64x" function
Oct 10, 2020
c++
visual-studio
intrinsics
avx
compiler-bug
Copying 64 bytes of memory with NT stores to one full cache line vs. 2 consecutive partial cache lines
Apr 05, 2022
c
performance
assembly
x86
avx
Why two bitwise or AVX instructions? [duplicate]
Jan 20, 2020
x86
bit-manipulation
avx
instructions
bitwise-or
Can I generate AVX vectorized code using LLVM jit?
Feb 15, 2020
x86
llvm
jit
avx
find nan in array of doubles using simd
Jun 13, 2022
c
nan
sse
simd
avx
How to store lower or higher values from AVX/AVX2(YMM) register to memory like the SSE movlps/movhps does?
Feb 21, 2017
x86
sse
simd
avx
avx2
Small branches in modern CPUs
May 23, 2022
performance
x86-64
cpu-architecture
avx
branch-prediction
SIMD minmag and maxmag
Feb 12, 2022
assembly
floating-point
x86
sse
avx
The indices of non-zero bytes of an SSE/AVX register
Feb 06, 2022
c++
c
sse
simd
avx
perf report shows this function "__memset_avx2_unaligned_erms" has overhead. does this mean memory is unaligned?
Oct 17, 2020
c++
profiling
avx
perf
avx2
Is using AVX2 can implement a faster processing of LZCNT on a word array?
Oct 05, 2020
x86
simd
avx
micro-optimization
avx2
How to make premultiplied alpha function faster using SIMD instructions?
Jun 04, 2022
c++
x86
sse
simd
avx
128-bit SSE counter?
Jun 30, 2017
optimization
sse
intrinsics
avx
AVX2, How to Efficiently Load Four Integers to Even Indices of a 256 Bit Register and Copy to Odd Indices?
Oct 07, 2018
x86
sse
simd
avx
avx2
Using AVX instructions disables exp() optimization?
May 02, 2018
visual-c++
x86
exp
avx
Assembly code/AVX instructions for multiplication of complex numbers. (GCC inline assembly)
Feb 16, 2022
c
gcc
assembly
complex-numbers
avx
What is the difference between MOVDQA and MOVNTDQA, and VMOVDQA and VMOVNTDQ for WB/WC marked region?
Jun 09, 2020
assembly
x86
sse
simd
avx
AVX2 VPSHUFB emulation in AVX
Oct 01, 2018
x86
simd
intrinsics
avx
_mm_alignr_epi8 (PALIGNR) equivalent in AVX2
Sep 01, 2020
x86
simd
intrinsics
avx
avx2
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