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| Rev 149 |
Rev 154 |
/* Copyright (C) 2002 Free Software Foundation
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/* Copyright (C) 2002 Free Software Foundation
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Check that constant folding of shift operations is working.
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Check that constant folding of shift operations is working.
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Roger Sayle, 10th October 2002. */
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Roger Sayle, 10th October 2002. */
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extern void abort (void);
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extern void abort (void);
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extern void link_error (void);
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extern void link_error (void);
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void
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void
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utest (unsigned int x)
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utest (unsigned int x)
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{
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{
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if (x >> 0 != x)
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if (x >> 0 != x)
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link_error ();
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link_error ();
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if (x << 0 != x)
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if (x << 0 != x)
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link_error ();
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link_error ();
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if (0 << x != 0)
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if (0 << x != 0)
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link_error ();
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link_error ();
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if (0 >> x != 0)
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if (0 >> x != 0)
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link_error ();
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link_error ();
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if (-1 >> x != -1)
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if (-1 >> x != -1)
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link_error ();
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link_error ();
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if (~0 >> x != ~0)
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if (~0 >> x != ~0)
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link_error ();
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link_error ();
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}
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}
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void
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void
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stest (int x)
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stest (int x)
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{
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{
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if (x >> 0 != x)
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if (x >> 0 != x)
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link_error ();
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link_error ();
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if (x << 0 != x)
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if (x << 0 != x)
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link_error ();
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link_error ();
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if (0 << x != 0)
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if (0 << x != 0)
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link_error ();
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link_error ();
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if (0 >> x != 0)
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if (0 >> x != 0)
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link_error ();
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link_error ();
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if (-1 >> x != -1)
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if (-1 >> x != -1)
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link_error ();
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link_error ();
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if (~0 >> x != ~0)
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if (~0 >> x != ~0)
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link_error ();
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link_error ();
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}
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}
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int
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int
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main ()
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main ()
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{
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{
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utest(9);
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utest(9);
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utest(0);
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utest(0);
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stest(9);
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stest(9);
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stest(0);
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stest(0);
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return 0;
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return 0;
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}
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}
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#ifndef __OPTIMIZE__
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#ifndef __OPTIMIZE__
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void
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void
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link_error ()
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link_error ()
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{
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{
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abort ();
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abort ();
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}
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}
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#endif
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#endif
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