gcc/testsuite/gcc.dg/graphite/scop-24.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Ofast -floop-nest-optimize" } */
   3
   4 typedef struct _IO_FILE FILE;
   5 extern struct _IO_FILE *stderr;
   6 typedef float real;
   7 typedef real rvec[3];
   8 int rgbset (int);
   9 void ps_box (int, int);
  10 void plot_phi(char *fn,rvec box,int natoms,rvec x[],real phi[])
  11 {
  12   real phi_max,rr,gg,bb,fac,dx,x0,y0;
  13   int i;
  14   for(i=0; (i<natoms); i++)
  15     phi_max=((phi_max > __builtin_fabs(phi[i]))
  16              ? phi_max : __builtin_fabs(phi[i]));
  17   if (__builtin_fabs(phi_max)<1.2e-38)
  18       __builtin_fprintf(stderr, "X");
  19   ps_box((real)(fac*box[0]-1),(real)(fac*box[1]-1));
  20   for(i=0; (i<natoms); i++)
  21     {
  22       rr=gg=bb=1.0;
  23       if (phi[i] < 0)
  24         gg=bb=(1.0+(phi[i]/phi_max));
  25       else
  26         rr=gg=(1.0-(phi[i]/phi_max));
  27       rr=rgbset(rr);
  28     }
  29 }