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/* Simple check that tail recursive call optimization is also
controlled by -foptimize-sibling-calls.
Copyright (C) 2006 Free Software Foundation Inc.
Original test by Hans-Peter Nilsson <hp@bitrange.com> */
/* On IA64 the call frame is allocated on the register stack, not the
normal stack. */
/* { dg-do run { target { ! "ia64-*-*" } } } */
/* { dg-options "-O2 -fno-optimize-sibling-calls" } */
extern void abort (void);
extern void recurser_void (int);
extern void track (int);
int main (void)
{
recurser_void (0);
return 0;
}
void recurser_void (int n)
{
if (n == 0 || n == 7)
track (n);
if (n == 10)
return;
recurser_void (n + 1);
}
void *trackpoint;
void track (int n)
{
char stackpos[1];
if (n == 0)
trackpoint = stackpos;
else if (n != 7 || trackpoint == stackpos)
abort ();
}
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