| commit | b96976e30de64e7ee32851c909e0ab909016b4ce | [log] [tgz] |
|---|---|---|
| author | Philip Reames <listmail@philipreames.com> | Thu Dec 17 22:19:27 2015 +0000 |
| committer | Philip Reames <listmail@philipreames.com> | Thu Dec 17 22:19:27 2015 +0000 |
| tree | 3ea81b2ec5e2a341ad6098c37c9416d40d8f49c8 | |
| parent | 7e54c38de03268a98f329069556b7bcf166c8f05 [diff] |
[InstCombine] Extend peephole DSE to handle unordered atomics This extends the same line of reasoning used in EarlyCSE w/http://reviews.llvm.org/D15352 to the DSE implementation in InstCombine. Key points: * We only remove unordered or simple stores. * The loads producing values consumed by dead stores don't influence whether the store is dead. Differential Revision: http://reviews.llvm.org/D15354 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255932 91177308-0d34-0410-b5e6-96231b3b80d8