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Subject: [Bug tree-optimization/54471] [4.8 Regression] FAIL: gcc.dg/sms-8.c execution test
Date: Wed, 21 Nov 2012 13:37:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54471

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|hppa*-*-* (32-bit)          |
             Status|WAITING                     |NEW
               Host|hppa*-*-* (32-bit)          |
              Build|hppa*-*-* (32-bit)          |

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-21 13:36:56 UTC ---
Reproduced with
extern void abort (void);

__attribute__ ((noinline))
unsigned __int128
foo (__int128 ixi, unsigned ctr)
{
  unsigned __int128 irslt = 1;
  __int128 ix = ixi;

  for (; ctr; ctr--)
    {
      irslt *= ix;
      ix *= ix;
    }

  if (irslt != 14348907)
    abort ();
  return irslt;
}

int
main ()
{
  unsigned __int128 res;

  res = foo (3, 4);
  return 0;
}

on x86_64-linux at -O2, seems to be a VRP bug.