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New posts in micro-optimization

x > -1 vs x >= 0, is there a performance difference

java c++ operators micro-optimization premature-optimization

Why does mulss take only 3 cycles on Haswell, different from Agner's instruction tables? (Unrolling FP loops with multiple accumulators)

c assembly x86 sse micro-optimization

Avoiding the overhead of C# virtual calls

c# virtual-functions micro-optimization

fastest way to negate a number

c++ visual-c++ x86 micro-optimization visual-c++-2012

Passing null pointer to placement new

c++ micro-optimization placement-new noexcept

Does calculating Sqrt(x) as x * InvSqrt(x) make any sense in the Doom 3 BFG code?

c++ optimization micro-optimization math.h

How exactly do partial registers on Haswell/Skylake perform? Writing AL seems to have a false dependency on RAX, and AH is inconsistent

assembly x86 intel cpu-architecture micro-optimization

Why does Intel's compiler prefer NEG+ADD over SUB?

assembly x86 micro-optimization icc

Comparing two values in the form (a + sqrt(b)) as fast as possible?

c++ optimization algebra micro-optimization sqrt

INC instruction vs ADD 1: Does it matter?

performance assembly x86 increment micro-optimization

Do java finals help the compiler create more efficient bytecode? [duplicate]

java optimization micro-optimization

What does `rep ret` mean?

assembly x86 micro-optimization branch-prediction

' ... != null' or 'null != ....' best performance?

java performance micro-optimization

"enter" vs "push ebp; mov ebp, esp; sub esp, imm" and "leave" vs "mov esp, ebp; pop ebp"

assembly x86 stack micro-optimization stack-frame

Divide by 10 using bit shifts?

math bit micro-optimization low-level integer-division

Does using xor reg, reg give advantage over mov reg, 0? [duplicate]

assembly x86 micro-optimization

Weird use of `?:` in `typeid` code

c++ conditional-operator micro-optimization typeid

How to force GCC to assume that a floating-point expression is non-negative?

c++ gcc assembly floating-point micro-optimization

Fast method to copy memory with translation - ARGB to BGR

c x86 rgb sse micro-optimization intel

Is reading the `length` property of an array really that expensive an operation in JavaScript?

javascript arrays micro-optimization
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