[Bug target/50856] ARM: suboptimal code for absolute difference calculation

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50856

Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |arm
           Priority|P3                          |P4
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-10-24
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2011-10-24 17:13:14 UTC ---
Confirmed.  With the second case we get quite close to getting it right (having
detected that there is an ABS expression, but we fail to merge it with the
original subtract.