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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/110009] Another missing ABS detection
Date: Mon, 04 Sep 2023 09:00:24 +0000	[thread overview]
Message-ID: <bug-110009-4-3dGoIDZQCc@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-110009-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110009

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Vector testcases too:
```
#define vector __attribute__((vector_size(4*sizeof(int))))

vector int
signed_f1(vector int v)
{
  vector int b_5;
  vector int _7;
  vector int _9;

  b_5 = v>>(sizeof(int)*8 - 1);
  _9 = b_5 | 1;
  _7 = v * _9;
  return _7;
}

vector unsigned
unsigned_f1 (vector int v)
{
  vector unsigned int d_6;
  vector int b_5;
  vector unsigned int v1_2;
  vector unsigned int _7;
  vector int _9;

  b_5 = v>>(sizeof(int)*8 - 1);
  _9 = b_5 | 1;
  d_6 = (vector unsigned int) _9;
  v1_2 = (vector unsigned int) v;
  _7 = v1_2 * d_6;
  return _7;
}

```

Which does work with the match pattern in comment #5.

  parent reply	other threads:[~2023-09-04  9:00 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-28  0:18 [Bug tree-optimization/110009] New: " pinskia at gcc dot gnu.org
2023-05-28  9:36 ` [Bug tree-optimization/110009] " gjl at gcc dot gnu.org
2023-05-28 14:38 ` pinskia at gcc dot gnu.org
2023-07-12  6:26 ` pinskia at gcc dot gnu.org
2023-09-04  8:20 ` pinskia at gcc dot gnu.org
2023-09-04  8:39 ` pinskia at gcc dot gnu.org
2023-09-04  9:00 ` pinskia at gcc dot gnu.org [this message]
2023-09-04 18:09 ` pinskia at gcc dot gnu.org
2023-09-04 18:10 ` pinskia at gcc dot gnu.org

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