gnu/dist/gcc4/gcc/testsuite/gcc.dg/pr28243.c

   1 /* PR rtl-optimization/28243 */
   2 /* Reported by Mike Frysinger <vapier@gentoo.org> */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-O2 -ftracer -fPIC" } */
   6
   7 struct displayfuncs {
   8   void (*init) ();
   9 } funcs;
  10
  11 struct gpsdisplay {
  12   struct displayfuncs *funcs;
  13 };
  14
  15 static void PSMyArc(double cx, double cy, double radx, double rady, double sa,
  16                     double ta)
  17 {
  18   double ea;
  19   double temp;
  20   ea = sa + ta;
  21   while (sa < ea) {
  22     temp = ((sa + 90) / 90) * 90;
  23     PSDoArc(cx, sa, ea < temp ? ea : temp);
  24     sa = temp;
  25   }
  26 }
  27
  28 static void PSDrawElipse()
  29 {
  30   float cx;
  31   float cy;
  32   float radx;
  33   float rady;
  34   if (radx != rady)
  35     PSMyArc(cx, cy, radx, rady, 0, 360);
  36 }
  37
  38 static void PSDrawFillCircle()
  39 {
  40   PSDrawElipse();
  41 }
  42
  43 static struct displayfuncs psfuncs[] = {
  44   PSDrawFillCircle
  45 };
  46
  47 void _GPSDraw_CreateDisplay()
  48 {
  49   struct gpsdisplay *gdisp;
  50   gdisp->funcs = (void *)&psfuncs;
  51 }