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Rev 154 |
/* Copyright (C) 2003 Free Software Foundation.
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/* Copyright (C) 2003 Free Software Foundation.
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Check that constant folding of mathematical expressions doesn't
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Check that constant folding of mathematical expressions doesn't
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break anything.
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break anything.
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Written by Roger Sayle, 3rd August 2003. */
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Written by Roger Sayle, 3rd August 2003. */
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/* { dg-do link } */
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/* { dg-do link } */
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/* { dg-options "-O2 -ffast-math" } */
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/* { dg-options "-O2 -ffast-math" } */
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extern void link_error(void);
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extern void link_error(void);
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void test(double x)
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void test(double x)
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{
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{
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if (x+x != 2.0*x)
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if (x+x != 2.0*x)
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link_error ();
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link_error ();
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if (x+x != x*2.0)
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if (x+x != x*2.0)
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link_error ();
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link_error ();
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if (x+x+x != 3.0*x)
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if (x+x+x != 3.0*x)
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link_error ();
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link_error ();
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if (x+x+x != x*3.0)
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if (x+x+x != x*3.0)
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link_error ();
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link_error ();
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if ((x+x)+x != 3.0*x)
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if ((x+x)+x != 3.0*x)
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link_error ();
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link_error ();
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if ((x+x)+x != x*3.0)
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if ((x+x)+x != x*3.0)
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link_error ();
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link_error ();
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if (x+(x+x) != 3.0*x)
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if (x+(x+x) != 3.0*x)
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link_error ();
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link_error ();
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if (x+(x+x) != x*3.0)
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if (x+(x+x) != x*3.0)
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link_error ();
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link_error ();
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if (x+4.0*x != 5.0*x)
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if (x+4.0*x != 5.0*x)
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link_error ();
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link_error ();
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if (x+4.0*x != x*5.0)
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if (x+4.0*x != x*5.0)
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link_error ();
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link_error ();
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if (x+x*4.0 != 5.0*x)
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if (x+x*4.0 != 5.0*x)
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link_error ();
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link_error ();
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if (x+x*4.0 != x*5.0)
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if (x+x*4.0 != x*5.0)
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link_error ();
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link_error ();
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if (4.0*x+x != 5.0*x)
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if (4.0*x+x != 5.0*x)
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link_error ();
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link_error ();
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if (4.0*x+x != x*5.0)
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if (4.0*x+x != x*5.0)
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link_error ();
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link_error ();
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if (x*4.0+x != 5.0*x)
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if (x*4.0+x != 5.0*x)
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link_error ();
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link_error ();
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if (x*4.0+x != x*5.0)
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if (x*4.0+x != x*5.0)
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link_error ();
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link_error ();
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if (3.0*x + 5.0*x != 8.0*x)
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if (3.0*x + 5.0*x != 8.0*x)
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link_error ();
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link_error ();
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if (3.0*x + 5.0*x != x*8.0)
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if (3.0*x + 5.0*x != x*8.0)
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link_error ();
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link_error ();
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if (x*3.0 + 5.0*x != 8.0*x)
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if (x*3.0 + 5.0*x != 8.0*x)
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link_error ();
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link_error ();
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if (x*3.0 + 5.0*x != x*8.0)
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if (x*3.0 + 5.0*x != x*8.0)
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link_error ();
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link_error ();
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if (3.0*x + x*5.0 != 8.0*x)
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if (3.0*x + x*5.0 != 8.0*x)
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link_error ();
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link_error ();
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if (3.0*x + x*5.0 != x*8.0)
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if (3.0*x + x*5.0 != x*8.0)
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link_error ();
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link_error ();
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if (x*3.0 + x*5.0 != 8.0*x)
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if (x*3.0 + x*5.0 != 8.0*x)
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link_error ();
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link_error ();
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if (x*3.0 + x*5.0 != x*8.0)
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if (x*3.0 + x*5.0 != x*8.0)
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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 main()
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int main()
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{
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{
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test(2.0);
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test(2.0);
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return 0;
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return 0;
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}
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}
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