| commit | 584940e3c65aca9e8329cae7b3ffda8ea51da81d | [log] [tgz] |
|---|---|---|
| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | Fri Dec 13 15:50:30 2013 +0000 |
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | Fri Dec 13 15:50:30 2013 +0000 |
| tree | f141feacb23e1c3a331b58c72b1b42472c194daa | |
| parent | 5f65b24e4df944e0dbab75aa4ee7efd12a1f820e [diff] |
[SystemZ] Optimize X [!=]= Y in cases where X - Y or Y - X is also computed In those cases it's better to compare the result of the subtraction against zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197239 91177308-0d34-0410-b5e6-96231b3b80d8