#define N 87 #define M 6 typedef signed char sc; typedef unsigned char uc; typedef signed short ss; typedef unsigned short us; typedef int si; typedef unsigned int ui; typedef signed long long sll; typedef unsigned long long ull; #define FOR_EACH_TYPE(M) \ M (sc) M (uc) \ M (ss) M (us) \ M (si) M (ui) \ M (sll) M (ull) \ M (float) M (double) #define TEST_VALUE(I) ((I) * 5 / 2) #define ADD_TEST(TYPE) \ void __attribute__((noinline, noclone)) \ test_##TYPE (TYPE *a, int step) \ { \ for (int i = 0; i < N; ++i) \ { \ a[i * step + 0] = a[i * step + 0] + 1; \ a[i * step + 1] = a[i * step + 1] + 2; \ a[i * step + 2] = a[i * step + 2] + 4; \ a[i * step + 3] = a[i * step + 3] + 8; \ } \ } \ void __attribute__((noinline, noclone)) \ ref_##TYPE (TYPE *a, int step) \ { \ for (int i = 0; i < N; ++i) \ { \ a[i * step + 0] = a[i * step + 0] + 1; \ a[i * step + 1] = a[i * step + 1] + 2; \ a[i * step + 2] = a[i * step + 2] + 4; \ a[i * step + 3] = a[i * step + 3] + 8; \ asm volatile (""); \ } \ } #define DO_TEST(TYPE) \ for (int j = -M; j <= M; ++j) \ { \ TYPE a[N * M], b[N * M]; \ for (int i = 0; i < N * M; ++i) \ a[i] = b[i] = TEST_VALUE (i); \ int offset = (j < 0 ? N * M - 4 : 0); \ test_##TYPE (a + offset, j); \ ref_##TYPE (b + offset, j); \ if (__builtin_memcmp (a, b, sizeof (a)) != 0) \ __builtin_abort (); \ } FOR_EACH_TYPE (ADD_TEST) int main (void) { FOR_EACH_TYPE (DO_TEST) return 0; }