1 /* { dg-require-effective-target int32plus } */
2
3 /* Test arithmetics on bitfields. */
4
5 extern void abort (void);
6 extern void exit (int);
7
8 unsigned int
9 myrnd (void)
10 {
11 static unsigned int s = 1388815473;
12 s *= 1103515245;
13 s += 12345;
14 return (s / 65536) % 2048;
15 }
16
17 #define T(S) \
18 struct S s##S; \
19 struct S retme##S (struct S x) \
20 { \
21 return x; \
22 } \
23 \
24 unsigned int fn1##S (unsigned int x) \
25 { \
26 struct S y = s##S; \
27 y.k += x; \
28 y = retme##S (y); \
29 return y.k; \
30 } \
31 \
32 unsigned int fn2##S (unsigned int x) \
33 { \
34 struct S y = s##S; \
35 y.k += x; \
36 y.k %= 15; \
37 return y.k; \
38 } \
39 \
40 unsigned int retit##S (void) \
41 { \
42 return s##S.k; \
43 } \
44 \
45 unsigned int fn3##S (unsigned int x) \
46 { \
47 s##S.k += x; \
48 return retit##S (); \
49 } \
50 \
51 void test##S (void) \
52 { \
53 int i; \
54 unsigned int mask, v, a, r; \
55 struct S x; \
56 char *p = (char *) &s##S; \
57 for (i = 0; i < sizeof (s##S); ++i) \
58 *p++ = myrnd (); \
59 if (__builtin_classify_type (s##S.l) == 8) \
60 s##S.l = 5.25; \
61 s##S.k = -1; \
62 mask = s##S.k; \
63 v = myrnd (); \
64 a = myrnd (); \
65 s##S.k = v; \
66 x = s##S; \
67 r = fn1##S (a); \
68 if (x.i != s##S.i || x.j != s##S.j \
69 || x.k != s##S.k || x.l != s##S.l \
70 || ((v + a) & mask) != r) \
71 abort (); \
72 v = myrnd (); \
73 a = myrnd (); \
74 s##S.k = v; \
75 x = s##S; \
76 r = fn2##S (a); \
77 if (x.i != s##S.i || x.j != s##S.j \
78 || x.k != s##S.k || x.l != s##S.l \
79 || ((((v + a) & mask) % 15) & mask) != r) \
80 abort (); \
81 v = myrnd (); \
82 a = myrnd (); \
83 s##S.k = v; \
84 x = s##S; \
85 r = fn3##S (a); \
86 if (x.i != s##S.i || x.j != s##S.j \
87 || s##S.k != r || x.l != s##S.l \
88 || ((v + a) & mask) != r) \
89 abort (); \
90 }
91
92 struct A { unsigned int i : 6, l : 1, j : 10, k : 15; }; T(A)
93 struct B { unsigned int i : 6, j : 11, k : 15; unsigned int l; }; T(B)
94 struct C { unsigned int l; unsigned int i : 6, j : 11, k : 15; }; T(C)
95 struct D { unsigned long long l : 6, i : 6, j : 23, k : 29; }; T(D)
96 struct E { unsigned long long l, i : 12, j : 23, k : 29; }; T(E)
97 struct F { unsigned long long i : 12, j : 23, k : 29, l; }; T(F)
98 struct G { unsigned int i : 12, j : 13, k : 7; unsigned long long l; }; T(G)
99 struct H { unsigned int i : 12, j : 11, k : 9; unsigned long long l; }; T(H)
100 struct I { unsigned short i : 1, j : 6, k : 9; unsigned long long l; }; T(I)
101 struct J { unsigned short i : 1, j : 8, k : 7; unsigned short l; }; T(J)
102 struct K { unsigned int k : 6, l : 1, j : 10, i : 15; }; T(K)
103 struct L { unsigned int k : 6, j : 11, i : 15; unsigned int l; }; T(L)
104 struct M { unsigned int l; unsigned int k : 6, j : 11, i : 15; }; T(M)
105 struct N { unsigned long long l : 6, k : 6, j : 23, i : 29; }; T(N)
106 struct O { unsigned long long l, k : 12, j : 23, i : 29; }; T(O)
107 struct P { unsigned long long k : 12, j : 23, i : 29, l; }; T(P)
108 struct Q { unsigned int k : 12, j : 13, i : 7; unsigned long long l; }; T(Q)
109 struct R { unsigned int k : 12, j : 11, i : 9; unsigned long long l; }; T(R)
110 struct S { unsigned short k : 1, j : 6, i : 9; unsigned long long l; }; T(S)
111 struct T { unsigned short k : 1, j : 8, i : 7; unsigned short l; }; T(T)
112 struct U { unsigned short j : 6, k : 1, i : 9; unsigned long long l; }; T(U)
113 struct V { unsigned short j : 8, k : 1, i : 7; unsigned short l; }; T(V)
114 struct W { long double l; unsigned int k : 12, j : 13, i : 7; }; T(W)
115 struct X { unsigned int k : 12, j : 13, i : 7; long double l; }; T(X)
116 struct Y { unsigned int k : 12, j : 11, i : 9; long double l; }; T(Y)
117 struct Z { long double l; unsigned int j : 13, i : 7, k : 12; }; T(Z)
118
119 int
120 main (void)
121 {
122 testA ();
123 testB ();
124 testC ();
125 testD ();
126 testE ();
127 testF ();
128 testG ();
129 testH ();
130 testI ();
131 testJ ();
132 testK ();
133 testL ();
134 testM ();
135 testN ();
136 testO ();
137 testP ();
138 testQ ();
139 testR ();
140 testS ();
141 testT ();
142 testU ();
143 testV ();
144 testW ();
145 testX ();
146 testY ();
147 testZ ();
148 exit (0);
149 }