1 /* { dg-do run } */
2 /* { dg-options "-O1 -Wall" } */
3
4 #define choose __builtin_choose_expr
5
6 /* Check the type of __builtin_choose_expr between E1 and E2, both
7 ways round and with both 0 and 1 as the condition. */
8 #define ASSERT_COND_TYPE(E1, E2) \
9 do { \
10 typedef __typeof(E1) T1; \
11 typedef __typeof(E2) T2; \
12 typedef T1 **T1pp; \
13 typedef T2 **T2pp; \
14 typedef __typeof(choose (1, (E1), (E2))) T1a; \
15 typedef __typeof(choose (0, (E2), (E1))) T1b; \
16 typedef __typeof(choose (1, (E2), (E1))) T2a; \
17 typedef __typeof(choose (0, (E1), (E2))) T2b; \
18 typedef T1a **T1app; \
19 typedef T1b **T1bpp; \
20 typedef T2a **T2app; \
21 typedef T2b **T2bpp; \
22 T1pp t1 = 0; \
23 T2pp t2 = 0; \
24 T1app t1a = 0; \
25 T1bpp t1b = 0; \
26 T2app t2a = 0; \
27 T2bpp t2b = 0; \
28 t1 = t1a; \
29 t1 = t1b; \
30 t2 = t2a; \
31 t2 = t2b; \
32 } while (0)
33
34
35 extern void abort ();
36 extern void exit ();
37
bad()38 void bad ()
39 {
40 abort ();
41 }
42
good()43 void good ()
44 {
45 exit (0);
46 }
47
main(void)48 int main (void)
49 {
50 signed char sc1, sc2;
51 void *v1;
52 int i, j;
53 double dd;
54 float f;
55 typedef void (*fpt)(void);
56 fpt triple;
57 struct S { int x, y; } pour, some, sugar;
58 union u { int p; } united, nations;
59
60 if (__builtin_choose_expr (0, 12, 0)
61 || !__builtin_choose_expr (45, 5, 0)
62 || !__builtin_choose_expr (45, 3, 0))
63 abort ();
64
65 ASSERT_COND_TYPE (sc1, sc2);
66 ASSERT_COND_TYPE (v1, sc1);
67 ASSERT_COND_TYPE (i, j);
68 ASSERT_COND_TYPE (dd, main);
69 ASSERT_COND_TYPE ((float)dd, i);
70 ASSERT_COND_TYPE (4, f);
71 ASSERT_COND_TYPE (triple, some);
72 ASSERT_COND_TYPE (united, nations);
73 ASSERT_COND_TYPE (nations, main);
74
75 pour.y = 69;
76 __builtin_choose_expr (0, bad (), sugar) = pour;
77 if (sugar.y != 69)
78 abort ();
79
80 __builtin_choose_expr (sizeof (int), f, bad ()) = 3.5F;
81
82 if (f != 3.5F)
83 abort ();
84
85 __builtin_choose_expr (1, good, bad)();
86
87 exit (0);
88 }
89