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