gcc/testsuite/gcc.c-torture/execute/20020206-2.c

   1 /* Origin: PR c/5420 from David Mosberger <davidm@hpl.hp.com>.
   2    This testcase was miscompiled when tail call optimizing, because a
   3    compound literal initialization was emitted only in the tail call insn
   4    chain, not in the normal call insn chain.  */
   5
   6 typedef struct { unsigned short a; } A;
   7
   8 extern void abort (void);
   9 extern void exit (int);
  10
  11 void foo (unsigned int x)
  12 {
  13   if (x != 0x800 && x != 0x810)
  14     abort ();
  15 }
  16
  17 int
  18 main (int argc, char **argv)
  19 {
  20   int i;
  21   for (i = 0; i < 2; ++i)
  22     foo (((A) { ((!(i >> 4) ? 8 : 64 + (i >> 4)) << 8) + (i << 4) } ).a);
  23   exit (0);
  24 }