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