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[Bug rtl-optimization/16456] PowerPC - redundant subtract involving pointer types

From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: 9 Jul 2004 19:15:24 -0000
Subject: [Bug rtl-optimization/16456] PowerPC - redundant subtract involving pointer types
References: <20040709175338.16456.steinmtz@us.ibm.com>
Reply-to: gcc-bugzilla at gcc dot gnu dot org

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-07-09 19:15 -------
Confirmed, the problem is they are different modes.
(set (reg:SI 124)
        (minus:SI (subreg:SI (reg:DI 119 [ ptr1.1 ]) 4)
            (subreg:SI (reg:DI 120 [ ptr2.4 ]) 4)))

(set (reg:DI 126)
        (minus:DI (reg:DI 119 [ ptr1.1 ])
            (reg:DI 120 [ ptr2.4 ])))

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|other                       |rtl-optimization
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-07-09 19:15:24
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16456

References:
- [Bug regression/16456] New: PowerPC - redundant subtract involving pointer types
  - From: gcc-bugzilla at gcc dot gnu dot org

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