gcc/testsuite/gcc.dg/complex-3.c

   1 /* Verify that rtl expansion cleanup doesn't get too aggressive about
   2    code dealing with complex CONCATs.  */
   3 /* { dg-do run } */
   4 /* { dg-options "-O -fno-tree-sra" } */
   5
   6 extern void abort (void);
   7 extern void exit (int);
   8
   9 __complex__ float foo (void)
  10 {
  11   __complex__ float f[1];
  12   __real__ f[0] = 1;
  13   __imag__ f[0] = 1;
  14   f[0] = __builtin_conjf (f[0]);
  15   return f[0];
  16 }
  17
  18 int main (void)
  19 {
  20   __complex__ double d[1];
  21   d[0] = foo ();
  22   if (__real__ d[0] != 1 || __imag__ d[0] != -1)
  23     abort ();
  24   exit (0);
  25 }