| commit | 201d1e56bb7535802c70d5eb46601afcc325045d | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Tue Nov 30 00:28:45 2010 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Tue Nov 30 00:28:45 2010 +0000 |
| tree | 06126f5e9e4f595a6bf9392503975886c6ddfdb3 | |
| parent | 532c2f1d503a42c5e8e0c5c9a513c459fed73d25 [diff] |
Teach basicaa that memset's modref set is at worst "mod" and never contains "ref". Enhance DSE to use a modref query instead of a store-specific hack to generalize the "ignore may-alias stores" optimization to handle memset and memcpy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120368 91177308-0d34-0410-b5e6-96231b3b80d8