SIMD-ized searching in unique constant dictionary

Sample programs for article http://0x80.pl/articles/simd-search.html

Type make then ./demo size iterations_count. Parameters set dictionary size and iteration count; program prints:

• size,
• execution time of following algorithms:
  • binary search,
  • linear search,
  • SIMD-ized binary search,
  • SIMD-ized linear search,
  • binary search with fallback to linear search,
  • binary search using SIMD-equal op around pivot.