compiler-optimization Archives

Why can lambdas be better optimized by the compiler than plain functions?

In his book The C++ Standard Library (Second Edition) Nicolai Josuttis states that lambdas can be better optimized by the compiler than plain … Read more

How to see which flags -march=native will activate?

by IT Nursery

I’m compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I’m using -march=native, which in theory should add … Read more

What is &&& operation in C

by IT Nursery

#include <stdio.h> volatile int i; int main() { int c; for (i = 0; i < 3; i++) { c = i &&& … Read more

How to compile Tensorflow with SSE4.2 and AVX instructions?

by IT Nursery

This is the message received from running a script to check if Tensorflow is working: I tensorflow/stream_executor/dso_loader.cc:125] successfully opened CUDA library libcublas.so.8.0 locally … Read more

Why does the Rust compiler not optimize code assuming that two mutable references cannot alias?

by IT Nursery

As far as I know, reference/pointer aliasing can hinder the compiler’s ability to generate optimized code, since they must ensure the generated binary … Read more