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New posts in avx
Macro for generating immediates for AVX shuffle intrinsics
Oct 17, 2025
c
macros
intel
intrinsics
avx
optimising column-wise maximum with SIMD
Oct 17, 2025
c++
sse
simd
intrinsics
avx
Find Absolute in AVX
Oct 14, 2025
floating-point
ieee-754
avx
avx2
absolute-value
Force compiler to use memory operand from Intrinsics
Sep 22, 2025
c
memory
intrinsics
avx
operands
AVX-512 Instruction Encoding - {er} Meaning
Sep 18, 2025
assembly
x86
avx
avx512
Improving a recursive hadamard transformation
Sep 09, 2025
c
simd
avx
No insert and extract for float/double in SSE and AVX?
Sep 09, 2025
c++
floating-point
sse
simd
avx
Why won't simple code get auto-vectorized with SSE and AVX in modern compilers?
Sep 05, 2025
c
optimization
sse
avx
auto-vectorization
Why gcc is so much worse at std::vector<float> vectorization of a conditional multiply than clang?
Sep 05, 2025
c++
gcc
vectorization
compiler-optimization
avx
Penalty for switching from SSE to AVX?
Mar 25, 2023
c++
sse
avx
sse2
Getting wrong results with using AVX instructions and -O3 compiling option
Mar 19, 2023
c
compiler-optimization
avx
Testing whether AVX register contains some equal integer numbers
Mar 11, 2023
c++
x86
simd
avx
avx2
Why is this code using VMULPD to write registers that will be overwritten by VFMADD? Isn't that useless?
Mar 09, 2023
assembly
avx
fma
Why _umul128 works slower than scalar code for mul128x64x2 function?
Mar 06, 2023
c++
x86
simd
avx
micro-optimization
How to optimise my AVX Code
Feb 14, 2023
c++
vectorization
simd
avx
auto-vectorization
Does Hyperthreading have trouble with AVX?
Feb 12, 2023
multithreading
avx
hyperthreading
Vectorization of modulo multiplication
Sep 04, 2025
c++
algorithm
sse
simd
avx
How to run bitwise OR on big vectors of u64 in the most performant manner?
Sep 02, 2025
c++
performance
assembly
cpu
avx
_mm256_fmadd_ps is slower than _mm256_mul_ps + _mm256_add_ps?
Sep 02, 2025
gcc
sse
simd
avx
micro-optimization
Why is (V)SHUFPS not in Intel's constant time instruction list?
Sep 02, 2025
assembly
cryptography
x86-64
cpu-architecture
avx
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