Assembly handwritten function slower than GCC compiled function...

Assembly function's data arrangment in data section...

ADD slower than ADC in the first step of a bigint multiply on Coffee Lake (Skylake)...

AND + CMP or SHR + CMP?...

x86-64 instruction to AND until zero?...

Is it possible to get the unsigned quotient and remainer at once in C?...

Which Intel microarchitecture introduced the ADC reg,0 single-uop special case?...

How to strip debug symbols for real in Xcode?...

"enter" vs "push ebp; mov ebp, esp; sub esp, imm" and "leave" vs &quot...

How to properly increment some array key, even if key needs to be created?...

Mixing SSE with AVX128 for shorter instructions?...

Is it useful to use VZEROUPPER if your program+libraries contain no SSE instructions?...

C optimization: conditional store to avoid dirtying a cache line...

Setting and clearing the zero flag in x86...

How can the rep stosb instruction execute faster than the equivalent loop?...

Why are loops always compiled into "do...while" style (tail jump)?...

Shorter x86 call instruction...

Are there any efficient micro-optimizations to find the number of unique grid paths?...

Is this a missed optimization in GCC, loading an 16-bit integer value from .rodata instead of an imm...

How is a critical path formed when there is a data dependency between a loop iterations while a CPU ...

Why is POP slow when using register R12?...

Is it more efficient to multiply within the address displacement or outside it?...

what is faster: in_array or isset?...

What is faster in Python, "while" or "for xrange"...

Should I use Java's String.format() if performance is important?...

How to unroll a loop of a dot product in mips after re-ordering instructions?...

Most compact way to test for a negative number in x86 assembly?...

test $x,%dil vs. test $x,%edi...

Why should code be aligned to even-address boundaries on x86?...

Any possible code that can flip a bit/integer/bool between 0 and 1 in single CPU instruction...