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