1 typedef unsigned long long ull;
2 volatile int gvol[32];
3 ull gull;
4
5 #define MULTI(X) \
6 X( 1), X( 2), X( 3), X( 4), X( 5), X( 6), X( 7), X( 8), X( 9), X(10), \
7 X(11), X(12), X(13), X(14), X(15), X(16), X(17), X(18), X(19), X(20), \
8 X(21), X(22), X(23), X(24), X(25), X(26), X(27), X(28), X(29), X(30)
9
10 #define DECLARE(INDEX) x##INDEX
11 #define COPYIN(INDEX) x##INDEX = gvol[INDEX]
12 #define COPYOUT(INDEX) gvol[INDEX] = x##INDEX
13
14 #define BUILD_TEST(NAME, N) \
15 ull __attribute__((noinline)) \
16 NAME (int n, ull x) \
17 { \
18 while (n--) \
19 { \
20 int MULTI (DECLARE); \
21 MULTI (COPYIN); \
22 MULTI (COPYOUT); \
23 x += N; \
24 } \
25 return x; \
26 }
27
28 #define RUN_TEST(NAME, N) \
29 if (NAME (3, ~0ULL) != N * 3 - 1) \
30 abort (); \
31 if (NAME (3, 0xffffffffULL) \
32 != N * 3 + 0xffffffffULL) \
33 abort ();
34
35 #define DO_TESTS(DO_TEST) \
36 DO_TEST (t1, -2048) \
37 DO_TEST (t2, -513) \
38 DO_TEST (t3, -512) \
39 DO_TEST (t4, -511) \
40 DO_TEST (t5, -1) \
41 DO_TEST (t6, 1) \
42 DO_TEST (t7, 511) \
43 DO_TEST (t8, 512) \
44 DO_TEST (t9, 513) \
45 DO_TEST (t10, gull) \
46 DO_TEST (t11, -gull)
47
DO_TESTS(BUILD_TEST)48 DO_TESTS (BUILD_TEST)
49
50 ull neg (ull x) { return -x; }
51
52 int
main()53 main ()
54 {
55 gull = 100;
56 DO_TESTS (RUN_TEST)
57 if (neg (gull) != -100ULL)
58 abort ();
59 exit (0);
60 }
61