double x[5][10] = { { 10, 11, 12, 13, 14, 15, -1, -1, -1, -1 }, { 21, 22, 23, 24, 25, 26, -1, -1, -1, -1 }, { 32, 33, 34, 35, 36, 37, -1, -1, -1, -1 }, { 43, 44, 45, 46, 47, 48, -1, -1, -1, -1 }, { 54, 55, 56, 57, 58, 59, -1, -1, -1, -1 } }; double tmp[5][6]; void __attribute__((noinline)) test (void) { int i, j; for (i = 0; i < 5; ++i) { tmp[i][0] = x[i][0]; tmp[i][1] = x[i][1]; tmp[i][2] = x[i][2]; tmp[i][3] = x[i][3]; tmp[i][4] = x[i][4]; tmp[i][5] = x[i][5]; } } extern void abort (void); int main() { int i, j; test(); for (i = 0; i < 5; ++i) for (j = 0; j < 6; ++j) if (tmp[i][j] == -1) abort (); return 0; }