test/monniaux/ternary/ternary.c


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#include <stdint.h>
#include <stdio.h>
#include <inttypes.h>
#include "../clock.h"

typedef uint32_t data;

#if 0
#define TERNARY(a, b, c) ((a) ? (b) : (c))
#else
#define TERNARY(a, b, c) (((-(a)) & (b)) | ((-1+(a)) & (c)))
#endif

data silly_computation(void) {
  data x = 1;
  for(int i=0; i<10000; i++) {
     x = x * TERNARY(((x & 0x100) != 0), 45561U, 337777U);
  }
  return x;
}

int main() {
  clock_prepare();
  clock_start();
  data result = silly_computation();
  clock_stop();
  printf("result=%" PRIu32 "\ncycles=%" PRIu64 "\n", result, get_total_clock());
  return 0;
}