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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [bitfld-4.c] - Diff between revs 297 and 338

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Rev 297 Rev 338
/* When comparisons of bit-fields to unsigned constants got shortened,
/* When comparisons of bit-fields to unsigned constants got shortened,
   the shortened signed constant was wrongly marked as overflowing,
   the shortened signed constant was wrongly marked as overflowing,
   leading to a later integer_zerop failure and misoptimization.
   leading to a later integer_zerop failure and misoptimization.
 
 
   Related to bug tree-optimization/16437 but shows the problem on
   Related to bug tree-optimization/16437 but shows the problem on
   32-bit systems.  */
   32-bit systems.  */
/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
 
 
extern void abort (void);
extern void abort (void);
 
 
struct s { int a:12, b:20; };
struct s { int a:12, b:20; };
 
 
struct s x = { -123, -456 };
struct s x = { -123, -456 };
 
 
int
int
main (void)
main (void)
{
{
  if (x.a != -123U || x.b != -456U)
  if (x.a != -123U || x.b != -456U)
    abort ();
    abort ();
  return 0;
  return 0;
}
}
 
 

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