src/llvm/tools/clang/test/CodeGen/complex.c

   1 // RUN: %clang_cc1 -emit-llvm-only %s
   2
   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
  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
  26 void test3() {
  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   // FIXME: Currently unsupported!
  36   //D += cf;
  37   cf /= g1;
  38   g1 = g1 + D;
  39   g1 = D + g1;
  40 }
  41
  42 __complex__ int ci1, ci2;
  43 __complex__ short cs;
  44 int i;
  45 void test3int() {
  46   ci1 = ci1 + ci2;
  47   ci1 = ci1 - ci2;
  48   ci1 = ci1 * ci2;
  49   ci1 = +-~ci1;
  50
  51   i = __real ci1;
  52
  53   cs += i;
  54   // FIXME: Currently unsupported!
  55   //D += cf;
  56   cs /= ci1;
  57   ci1 = ci1 + i;
  58   ci1 = i + ci1;
  59 }
  60
  61 void t1() {
  62   (__real__ cf) = 4.0;
  63 }
  64
  65 void t2() {
  66   (__imag__ cf) = 4.0;
  67 }
  68
  69 // PR1960
  70 void t3() {
  71   __complex__ long long v = 2;
  72 }
  73
  74 // PR3131
  75 float _Complex t4();
  76
  77 void t5() {
  78   float _Complex x = t4();
  79 }
  80
  81 void t6() {
  82   g1++;
  83   g1--;
  84   ++g1;
  85   --g1;
  86   ci1++;
  87   ci1--;
  88   ++ci1;
  89   --ci1;
  90 }
  91
  92 // <rdar://problem/7958272>
  93 double t7(double _Complex c) {
  94   return __builtin_fabs(__real__(c));
  95 }
  96
  97 void t8() {
  98   __complex__ int *x = &(__complex__ int){1};
  99 }