43 lines
754 B
C
43 lines
754 B
C
/* Copyright (C) 2003, 2006 Free Software Foundation.
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Verify that built-in math function constant folding of functions
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with one constant argument is correctly performed by the compiler.
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Written by Roger Sayle, 30th March 2003. */
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/* { dg-do run } */
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/* { dg-options "-O2 -ffast-math" } */
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extern void abort(void);
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extern double pow(double, double);
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extern double sqrt(double);
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extern double cbrt(double);
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void test(double x)
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{
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if (pow(x,-1.0) != 1.0/x)
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abort ();
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if (pow(x,2.0) != x*x)
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abort ();
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if (pow(x,-2.0) != 1.0/(x*x))
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abort ();
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if (pow(x,0.5) != sqrt(x))
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abort ();
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#ifdef HAVE_C99_RUNTIME
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if (pow(x,1.0/3.0) != cbrt(x))
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abort ();
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#endif
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}
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int main()
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{
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test (1.0);
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test (2.0);
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return 0;
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}
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