| commit | 268637ed0f34e10e4125e94c44ff3e2975a19166 | [log] [tgz] |
|---|---|---|
| author | Eli Friedman <eli.friedman@gmail.com> | Thu Jun 03 03:49:50 2010 +0000 |
| committer | Eli Friedman <eli.friedman@gmail.com> | Thu Jun 03 03:49:50 2010 +0000 |
| tree | 610f0a9753ebeb3ed25fd52c3e281b60d66c0a3e | |
| parent | db1bf34178aec96559cf2e7190accc484c85d3e2 [diff] |
Implement expansion in type legalization for add/sub with overflow. The expansion is the same as that used by LegalizeDAG. The resulting code sucks in terms of performance/codesize on x86-32 for a 64-bit operation; I haven't looked into whether different expansions might be better in general. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105378 91177308-0d34-0410-b5e6-96231b3b80d8