nkurz

// Code to test how well compilers optimize division by constants
// See: http://ridiculousfish.com/blog/posts/labor-of-division-episode-iii.html

// gcc -std=gnu11 -Wall -Wextra -O3 constant_division.c -o constant_division
// objdump -d constant_division | less

#ifndef COUNT
#define COUNT (1000 * 1000)
#endif 

nkurz

// gcc  -fno-inline -std=gnu99 -Wall -O3 align.c -o align -lm -DLIKWID -llikwid -lpthread
// objdump -d align | less (to confirm that the code hasn't been optimized out)
// likwid -m -C2 -g BRANCH align

#include <math.h>
#include <stdio.h>
#include <stdlib.h>

#ifndef ALIGN
#define ALIGN 8