48 lines
809 B
C
48 lines
809 B
C
/* Copyright (C) 2003 Free Software Foundation.
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Check that constant folding of built-in math functions doesn't
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break anything and produces the expected results.
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Written by Roger Sayle, 29th July 2003. */
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/* { dg-do link } */
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/* { dg-options "-O2 -ffast-math" } */
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extern void link_error(void);
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extern double pow(double,double);
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void test(double x)
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{
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if (pow(x,2.0) != x*x)
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link_error ();
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if (x*pow(x,2.0) != pow(x,3.0))
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link_error ();
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if (pow(x,2.0)*x != pow(x,3.0))
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link_error ();
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if (pow(x,3.0) != x*x*x)
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link_error ();
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if (pow(x,2.0)*x != x*x*x)
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link_error ();
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if (x*pow(x,2.0) != x*x*x)
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link_error ();
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if (pow(x,3.0)/x != pow(x,2.0))
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link_error ();
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if (pow(x,3.0)/x != x*x)
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link_error ();
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}
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int main()
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{
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test (2.0);
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return 0;
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}
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