gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-32.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre1-details" } */
   3
   4 _Complex float m;
   5
   6 void
   7 foo (_Complex float x)
   8 {
   9   float r = __real x;
  10   float i = __imag x;
  11   _Complex float z;
  12   __real z = r;
  13   __imag z = i;
  14   m = z;
  15 }
  16
  17 void
  18 bar (_Complex float x)
  19 {
  20   float r = __real x;
  21   float i = __imag x;
  22   _Complex float z = x;
  23   __real z = r;
  24   __imag z = i;
  25   m = z;
  26 }
  27
  28 /* We should CSE all the way to replace the stored value with x.  */
  29 /* { dg-final { scan-tree-dump-times "m = x_\\d\+\\(D\\);" 2 "fre1" } } */
  30 /* { dg-final { cleanup-tree-dump "fre1" } } */