gcc/testsuite/gcc.target/s390/pr106355.h

   1 /* For the S/390 ABI parameter D is passed in GPR 5 and 6 and the latter is
   2    call-saved which prohibits sibling call optimization.  This must hold true
   3    also if the mode of the parameter is BLKmode.  */
   4
   5 typedef struct
   6 {
   7   short x;
   8   char y[6];
   9 } t;
  10
  11 extern t d;
  12
  13 extern void bar (int a, int b, int c, t d);
  14
  15 void foo (int a, int b, int c)
  16 {
  17   bar (a, b, c, d);
  18 }