177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#include "timing.h" 277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#include <stdio.h> 377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define INPUT_TYPE int64_t 577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define INPUT_SIZE 512 677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define FUNCTION_NAME __floatdisf 777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 877ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#ifndef LIBNAME 977ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define LIBNAME UNKNOWN 1077ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#endif 1177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 1277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define LIBSTRING LIBSTRINGX(LIBNAME) 1377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define LIBSTRINGX(a) LIBSTRINGXX(a) 1477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#define LIBSTRINGXX(a) #a 1577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 1677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liaofloat FUNCTION_NAME(INPUT_TYPE x); 1777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 1877ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liaoint main(int argc, char *argv[]) { 1977ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao INPUT_TYPE input[INPUT_SIZE]; 2077ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao int i, j; 2177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 2277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao srand(42); 2377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 2477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao // Initialize the input array with data of various sizes. 2577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao for (i=0; i<INPUT_SIZE; ++i) 2677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao input[i] = (((uint64_t)rand() << 32) | (uint64_t)rand()) >> (rand() & 63); 2777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 2877ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao double bestTime = __builtin_inf(); 2977ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao void *dummyp; 3077ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao for (j=0; j<1024; ++j) { 3177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 3277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao uint64_t startTime = mach_absolute_time(); 3377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao for (i=0; i<INPUT_SIZE; ++i) 3477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao FUNCTION_NAME(input[i]); 3577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao uint64_t endTime = mach_absolute_time(); 3677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 3777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao double thisTime = intervalInCycles(startTime, endTime); 3877ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao bestTime = __builtin_fmin(thisTime, bestTime); 3977ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 4077ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao // Move the stack alignment between trials to eliminate (mostly) aliasing effects 4177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao dummyp = alloca(1); 4277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao } 4377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 4477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao printf("%16s: %f cycles.\n", LIBSTRING, bestTime / (double) INPUT_SIZE); 4577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 4677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao return 0; 4777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao} 48