Subversion Repositories openrisc

/* Copyright (C) 2003  Free Software Foundation.
 
   Verify that constant folding comparisons against built-in math functions
   don't cause any problems for the compiler, and produce expected results.
 
   Written by Roger Sayle, 15th March 2003.  */
 
/* { dg-do run } */
/* { dg-options "-O2 -ffast-math" } */
 
#include <float.h>
 
extern void abort (void);
extern double sqrt (double);
 
int test1(double x)
{
  return sqrt(x) < -9.0;
}
 
int test2(double x)
{
  return sqrt(x) > -9.0;
}
 
int test3(double x)
{
  return sqrt(x) < 9.0;
}
 
int test4(double x)
{
  return sqrt(x) > 9.0;
}
 
int test5(double x)
{
  return sqrt(x) < DBL_MAX;
}
 
int test6(double x)
{
  return sqrt(x) > DBL_MAX;
}
 
int main()
{
  double x;
 
  x = 80.0;
  if (test1 (x))
    abort ();
  if (! test2 (x))
    abort ();
  if (! test3 (x))
    abort ();
  if (test4 (x))
    abort ();
  if (! test5 (x))
    abort ();
  if (test6 (x))
    abort ();
 
  x = 100.0;
  if (test1 (x))
    abort ();
  if (! test2 (x))
    abort ();
  if (test3 (x))
    abort ();
  if (! test4 (x))
    abort ();
  if (! test5 (x))
    abort ();
  if (test6 (x))
    abort ();
 
  return 0;
}