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| author | Chris Lattner <sabre@nondot.org> | 2010-11-30 00:28:45 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-11-30 00:28:45 +0000 |
| commit | 201d1e56bb7535802c70d5eb46601afcc325045d (patch) | |
| tree | 06126f5e9e4f595a6bf9392503975886c6ddfdb3 /lib/CodeGen/CodeGen.cpp | |
| 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
Diffstat (limited to 'lib/CodeGen/CodeGen.cpp')
0 files changed, 0 insertions, 0 deletions