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-require-effective-target fpic } */
   6 /* { dg-options "-O2 -ftracer -fPIC" } */
   7 /* { dg-skip-if "requires unsupported run-time relocation" { spu-*-* } } */
   8
   9 struct displayfuncs {
  10   void (*init) ();
  11 } funcs;
  12
  13 struct gpsdisplay {
  14   struct displayfuncs *funcs;
  15 };
  16
  17 void PSDoArc ();
  18
  19 static void PSMyArc(double cx, double cy, double radx, double rady, double sa,
  20                     double ta)
  21 {
  22   double ea;
  23   double temp;
  24   ea = sa + ta;
  25   while (sa < ea) {
  26     temp = ((sa + 90) / 90) * 90;
  27     PSDoArc(cx, sa, ea < temp ? ea : temp);
  28     sa = temp;
  29   }
  30 }
  31
  32 static void PSDrawElipse()
  33 {
  34   float cx;
  35   float cy;
  36   float radx;
  37   float rady;
  38   if (radx != rady)
  39     PSMyArc(cx, cy, radx, rady, 0, 360);
  40 }
  41
  42 static void PSDrawFillCircle()
  43 {
  44   PSDrawElipse();
  45 }
  46
  47 static struct displayfuncs psfuncs[] = {
  48   PSDrawFillCircle
  49 };
  50
  51 void _GPSDraw_CreateDisplay()
  52 {
  53   struct gpsdisplay *gdisp;
  54   gdisp->funcs = (void *)&psfuncs;
  55 }