extzvsi.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 32 行

/* Failed on powerpc due to bad extzvsi pattern.  */

struct ieee
{
  unsigned int negative:1;
  unsigned int exponent:11;
  unsigned int mantissa0:20;
  unsigned int mantissa1:32;
} x;

unsigned int
foo (void)
{
  unsigned int exponent;

  exponent = x.exponent;
  if (exponent == 0)
    return 1;
  else if (exponent > 1)
    return 2;
  return 0;
}

int
main (void)
{
  x.exponent = 1;
  if (foo () != 0)
    abort ();
  return 0;
}