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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [ieee/] [mzero5.c] - Blame information for rev 841

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/* Test gcse handling of IEEE 0/-0 rules.  */
static double zero = 0.0;
 
int
negzero_check (double d)
{
  if (d == 0)
    return !!memcmp ((void *)&zero, (void *)&d, sizeof (double));
  return 0;
}
 
int
sub (double d, double e)
{
  if (d == 0.0 && e == 0.0
      && negzero_check (d) == 0 && negzero_check (e) == 0)
    return 1;
  else
    return 0;
}
 
int
main (void)
{
  double minus_zero = -0.0;
  if (sub (minus_zero, 0))
    abort ();
  return 0;
}

Line No.	Rev	Author	Line
1	149	jeremybenn	`/* Test gcse handling of IEEE 0/-0 rules. */`
2			`static double zero = 0.0;`
3
4			`int`
5			`negzero_check (double d)`
6			`{`
7			`if (d == 0)`
8			`return !!memcmp ((void )&zero, (void )&d, sizeof (double));`
9			`return 0;`
10			`}`
11
12			`int`
13			`sub (double d, double e)`
14			`{`
15			`if (d == 0.0 && e == 0.0`
16			`&& negzero_check (d) == 0 && negzero_check (e) == 0)`
17			`return 1;`
18			`else`
19			`return 0;`
20			`}`
21
22			`int`
23			`main (void)`
24			`{`
25			`double minus_zero = -0.0;`
26			`if (sub (minus_zero, 0))`
27			`abort ();`
28			`return 0;`
29			`}`

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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [ieee/] [mzero5.c] - Blame information for rev 841