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New posts in compiler-optimization
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_u64 on Intel CPUs
Apr 08, 2022
c++
performance
assembly
x86
compiler-optimization
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
Aug 13, 2022
gcc
assembly
floating-point
compiler-optimization
fast-math
Why are elementwise additions much faster in separate loops than in a combined loop?
Feb 17, 2022
c++
performance
x86
vectorization
compiler-optimization
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