1 /* Copyright (C) 2003 Free Software Foundation.
3 Check that constant folding of built-in math functions doesn't
4 break anything and produces the expected results.
6 Written by Roger Sayle, 2nd April 2003. */
9 /* { dg-options "-O2 -ffast-math" } */
11 extern void link_error(void);
13 extern double exp(double);
14 extern double log(double);
15 extern double sqrt(double);
16 extern double pow(double,double);
20 if (sqrt(pow(x,4.0)) != x*x)
23 if (pow(sqrt(x),4.0) != x*x)
26 if (pow(pow(x,4.0),0.25) != x)
30 void test2(double x, double y, double z)
32 if (sqrt(pow(x,y)) != pow(x,y*0.5))
35 if (log(pow(x,y)) != y*log(x))
38 if (pow(exp(x),y) != exp(x*y))
41 if (pow(sqrt(x),y) != pow(x,y*0.5))
44 if (pow(pow(x,y),z) != pow(x,y*z))
51 test2 (2.0, 3.0, 4.0);