xref: /llvm-project/clang/test/CodeGen/complex.c (revision 0f1c1be1968076d6f96f8a7bcc4a15cf195ecd97) 
1 // RUN: %clang_cc1 -emit-llvm-only %s
2 
main(void)3 int main(void)
4 {
5   double _Complex a = 5;
6   double _Complex b = 42;
7 
8   return a * b != b * a;
9 }
10 
11 _Complex double bar(int);
12 void test(_Complex double*);
13 void takecomplex(_Complex double);
14 
test2(int c)15 void test2(int c) {
16   _Complex double X;
17   X = bar(1);
18   test(&X);
19   takecomplex(X);
20 }
21 
22 _Complex double g1, g2;
23 _Complex float cf;
24 double D;
25 
test3(void)26 void test3(void) {
27   g1 = g1 + g2;
28   g1 = g1 - g2;
29   g1 = g1 * g2;
30   g1 = +-~g1;
31 
32   double Gr = __real g1;
33 
34   cf += D;
35   D += cf;
36   cf /= g1;
37   g1 = g1 + D;
38   g1 = D + g1;
39 }
40 
41 __complex__ int ci1, ci2;
42 __complex__ short cs;
43 int i;
test3int(void)44 void test3int(void) {
45   ci1 = ci1 + ci2;
46   ci1 = ci1 - ci2;
47   ci1 = ci1 * ci2;
48   ci1 = +-~ci1;
49 
50   i = __real ci1;
51 
52   cs += i;
53   D += cf;
54   cs /= ci1;
55   ci1 = ci1 + i;
56   ci1 = i + ci1;
57 }
58 
t1(void)59 void t1(void) {
60   (__real__ cf) = 4.0;
61 }
62 
t2(void)63 void t2(void) {
64   (__imag__ cf) = 4.0;
65 }
66 
67 // PR1960
t3(void)68 void t3(void) {
69   __complex__ long long v = 2;
70 }
71 
72 // PR3131
73 float _Complex t4(void);
74 
t5(void)75 void t5(void) {
76   float _Complex x = t4();
77 }
78 
t6(void)79 void t6(void) {
80   g1++;
81   g1--;
82   ++g1;
83   --g1;
84   ci1++;
85   ci1--;
86   ++ci1;
87   --ci1;
88 }
89 
t7(double _Complex c)90 double t7(double _Complex c) {
91   return __builtin_fabs(__real__(c));
92 }
93 
t8(void)94 void t8(void) {
95   __complex__ int *x = &(__complex__ int){1};
96 }
97 
98 const _Complex double test9const = 0;
test9func(void)99 _Complex double test9func(void) { return test9const; }
100 
101 // D6217
t91(void)102 void t91(void) {
103   // Check for proper type promotion of conditional expression
104   char c[(int)(sizeof(typeof((0 ? 2.0f : (_Complex double) 2.0f))) - sizeof(_Complex double))];
105   // Check for proper codegen
106   (0 ? 2.0f : (_Complex double) 2.0f);
107 }
108 
t92(void)109 void t92(void) {
110   // Check for proper type promotion of conditional expression
111   char c[(int)(sizeof(typeof((0 ? (_Complex double) 2.0f : 2.0f))) - sizeof(_Complex double))];
112   // Check for proper codegen
113   (0 ? (_Complex double) 2.0f : 2.0f);
114 }
115 
116